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gerrit.cesnet.cz / github / CESNET / libyang / f02e37468298002c3687f27e6b660f12d201d288 / . / src / parser / yin.c
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/**
* @file yin.c
* @author Radek Krejci <rkrejci@cesnet.cz>
* @brief YIN parser for libyang
*
* Copyright (c) 2015 CESNET, z.s.p.o.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name of the Company nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*/
#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <limits.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <stddef.h>
#include <sys/types.h>
#include <regex.h>
#include "../libyang.h"
#include "../common.h"
#include "../context.h"
#include "../dict.h"
#include "../parser.h"
#include "../parse.h"
#include "../resolve.h"
#include "../tree_internal.h"
#include "../xml.h"
enum LY_IDENT {
LY_IDENT_SIMPLE, /* only syntax rules */
LY_IDENT_FEATURE,
LY_IDENT_IDENTITY,
LY_IDENT_TYPE,
LY_IDENT_NODE,
LY_IDENT_NAME, /* uniqueness across the siblings */
LY_IDENT_PREFIX
};
#define LY_NSYIN "urn:ietf:params:xml:ns:yang:yin:1"
#define LY_NSNACM "urn:ietf:params:xml:ns:yang:ietf-netconf-acm"
#define GETVAL(value, node, arg) \
value = lyxml_get_attr(node, arg, NULL); \
if (!value) { \
LOGVAL(LYE_MISSARG, LOGLINE(node), arg, node->name); \
goto error; \
}
#define OPT_IDENT 0x01
#define OPT_CONFIG 0x02
#define OPT_MODULE 0x04
#define OPT_INHERIT 0x08
#define OPT_NACMEXT 0x10
static int read_yin_common(struct lys_module *, struct lys_node *, struct lys_node *, struct lyxml_elem *, int);
static struct lys_node *read_yin_choice(struct lys_module *module, struct lys_node *parent, struct lyxml_elem *yin,
int resolve, struct unres_schema *unres);
static struct lys_node *read_yin_case(struct lys_module *module, struct lys_node *parent, struct lyxml_elem *yin,
int resolve, struct unres_schema *unres);
static struct lys_node *read_yin_anyxml(struct lys_module *module, struct lys_node *parent, struct lyxml_elem *yin,
int resolve, struct unres_schema *unres);
static struct lys_node *read_yin_container(struct lys_module *module, struct lys_node *parent, struct lyxml_elem *yin,
int resolve, struct unres_schema *unres);
static struct lys_node *read_yin_leaf(struct lys_module *module, struct lys_node *parent, struct lyxml_elem *yin,
int resolve, struct unres_schema *unres);
static struct lys_node *read_yin_leaflist(struct lys_module *module, struct lys_node *parent, struct lyxml_elem *yin,
int resolve, struct unres_schema *unres);
static struct lys_node *read_yin_list(struct lys_module *module,struct lys_node *parent, struct lyxml_elem *yin,
int resolve, struct unres_schema *unres);
static struct lys_node *read_yin_uses(struct lys_module *module, struct lys_node *parent, struct lyxml_elem *node,
int resolve, struct unres_schema *unres);
static struct lys_node *read_yin_grouping(struct lys_module *module, struct lys_node *parent, struct lyxml_elem *node,
int resolve, struct unres_schema *unres);
static struct lys_when *read_yin_when(struct lys_module *module, struct lyxml_elem *yin);
static int
dup_typedef_check(const char *type, struct lys_tpdf *tpdf, int size)
{
int i;
for (i = 0; i < size; i++) {
if (!strcmp(type, tpdf[i].name)) {
/* name collision */
return EXIT_FAILURE;
}
}
return EXIT_SUCCESS;
}
static int
dup_feature_check(const char *id, struct lys_module *module)
{
int i;
for (i = 0; i < module->features_size; i++) {
if (!strcmp(id, module->features[i].name)) {
return EXIT_FAILURE;
}
}
return EXIT_SUCCESS;
}
static int
dup_prefix_check(const char *prefix, struct lys_module *module)
{
int i;
if (!module->type && module->prefix && !strcmp(module->prefix, prefix)) {
return EXIT_FAILURE;
}
for (i = 0; i < module->imp_size; i++) {
if (!strcmp(module->imp[i].prefix, prefix)) {
return EXIT_FAILURE;
}
}
return EXIT_SUCCESS;
}
static int
check_identifier(const char *id, enum LY_IDENT type, unsigned int line,
struct lys_module *module, struct lys_node *parent)
{
int i;
int size;
struct lys_tpdf *tpdf;
struct lys_node *mnode;
assert(id);
/* check id syntax */
if (!(id[0] >= 'A' && id[0] <= 'Z') && !(id[0] >= 'a' && id[0] <= 'z') && id[0] != '_') {
LOGVAL(LYE_INID, line, id, "invalid start character");
return EXIT_FAILURE;
}
for (i = 1; id[i]; i++) {
if (!(id[i] >= 'A' && id[i] <= 'Z') && !(id[i] >= 'a' && id[i] <= 'z')
&& !(id[i] >= '0' && id[i] <= '9') && id[i] != '_' && id[i] != '-' && id[i] != '.') {
LOGVAL(LYE_INID, line, id, "invalid character");
return EXIT_FAILURE;
}
}
if (i > 64) {
LOGWRN("Identifier \"%s\" is long, you should use something shorter.", id);
}
switch (type) {
case LY_IDENT_NAME:
/* check uniqueness of the node within its siblings */
if (!parent) {
break;
}
LY_TREE_FOR(parent->child, mnode) {
if (mnode->name == id) {
LOGVAL(LYE_INID, line, id, "name duplication");
return EXIT_FAILURE;
}
}
break;
case LY_IDENT_TYPE:
assert(module);
/* check collision with the built-in types */
if (!strcmp(id, "binary") || !strcmp(id, "bits") ||
!strcmp(id, "boolean") || !strcmp(id, "decimal64") ||
!strcmp(id, "empty") || !strcmp(id, "enumeration") ||
!strcmp(id, "identityref") || !strcmp(id, "instance-identifier") ||
!strcmp(id, "int8") || !strcmp(id, "int16") ||
!strcmp(id, "int32") || !strcmp(id, "int64") ||
!strcmp(id, "leafref") || !strcmp(id, "string") ||
!strcmp(id, "uint8") || !strcmp(id, "uint16") ||
!strcmp(id, "uint32") || !strcmp(id, "uint64") || !strcmp(id, "union")) {
LOGVAL(LYE_SPEC, line, "Typedef name duplicates built-in type.");
return EXIT_FAILURE;
}
/* check locally scoped typedefs (avoid name shadowing) */
for (; parent; parent = parent->parent) {
switch (parent->nodetype) {
case LYS_CONTAINER:
size = ((struct lys_node_container *)parent)->tpdf_size;
tpdf = ((struct lys_node_container *)parent)->tpdf;
break;
case LYS_LIST:
size = ((struct lys_node_list *)parent)->tpdf_size;
tpdf = ((struct lys_node_list *)parent)->tpdf;
break;
case LYS_GROUPING:
size = ((struct lys_node_grp *)parent)->tpdf_size;
tpdf = ((struct lys_node_grp *)parent)->tpdf;
break;
default:
continue;
}
if (dup_typedef_check(id, tpdf, size)) {
LOGVAL(LYE_DUPID, line, "typedef", id);
return EXIT_FAILURE;
}
}
/* check top-level names */
if (dup_typedef_check(id, module->tpdf, module->tpdf_size)) {
LOGVAL(LYE_DUPID, line, "typedef", id);
return EXIT_FAILURE;
}
/* check submodule's top-level names */
for (i = 0; i < module->inc_size; i++) {
if (dup_typedef_check(id, module->inc[i].submodule->tpdf, module->inc[i].submodule->tpdf_size)) {
LOGVAL(LYE_DUPID, line, "typedef", id);
return EXIT_FAILURE;
}
}
/* check top-level names in the main module */
if (module->type) {
if (dup_typedef_check(id, ((struct lys_submodule *)module)->belongsto->tpdf,
((struct lys_submodule *)module)->belongsto->tpdf_size)) {
LOGVAL(LYE_DUPID, line, "typedef", id);
return EXIT_FAILURE;
}
}
break;
case LY_IDENT_PREFIX:
assert(module);
if (module->type) {
/* go to the main module */
module = ((struct lys_submodule *)module)->belongsto;
}
/* check the main module itself */
if (dup_prefix_check(id, module)) {
LOGVAL(LYE_DUPID, line, "prefix", id);
return EXIT_FAILURE;
}
/* and all its submodules */
for (i = 0; i < module->inc_size; i++) {
if (dup_prefix_check(id, (struct lys_module *)module->inc[i].submodule)) {
LOGVAL(LYE_DUPID, line, "prefix", id);
return EXIT_FAILURE;
}
}
break;
case LY_IDENT_FEATURE:
assert(module);
/* check feature name uniqness*/
/* check features in the current module */
if (dup_feature_check(id, module)) {
LOGVAL(LYE_DUPID, line, "feature", id);
return EXIT_FAILURE;
}
/* and all its submodules */
for (i = 0; i < module->inc_size; i++) {
if (dup_feature_check(id, (struct lys_module *)module->inc[i].submodule)) {
LOGVAL(LYE_DUPID, line, "feature", id);
return EXIT_FAILURE;
}
}
break;
default:
/* no check required */
break;
}
return EXIT_SUCCESS;
}
static int
check_mandatory(struct lys_node *mnode)
{
struct lys_node *child;
assert(mnode);
if (mnode->flags & LYS_MAND_TRUE) {
return EXIT_FAILURE;
}
if (mnode->nodetype == LYS_CASE || mnode->nodetype == LYS_CHOICE) {
LY_TREE_FOR(mnode->child, child) {
if (check_mandatory(child)) {
return EXIT_FAILURE;
}
}
}
return EXIT_SUCCESS;
}
static int
check_date(const char *date, unsigned int line)
{
int i;
assert(date);
if (strlen(date) != LY_REV_SIZE - 1) {
goto error;
}
for (i = 0; i < LY_REV_SIZE - 1; i++) {
if (i == 4 || i == 7) {
if (date[i] != '-') {
goto error;
}
} else if (!isdigit(date[i])) {
goto error;
}
}
return EXIT_SUCCESS;
error:
LOGVAL(LYE_INDATE, line, date);
return EXIT_FAILURE;
}
static const char *
read_yin_subnode(struct ly_ctx *ctx, struct lyxml_elem *node, const char *name)
{
int len;
/* there should be <text> child */
if (!node->child || !node->child->name || strcmp(node->child->name, name)) {
LOGWRN("Expected \"%s\" element in \"%s\" element.", name, node->name);
} else if (node->child->content) {
len = strlen(node->child->content);
return lydict_insert(ctx, node->child->content, len);
}
LOGVAL(LYE_INARG, LOGLINE(node), name, node->name);
return NULL;
}
static int
fill_yin_identity(struct lys_module *module, struct lyxml_elem *yin, struct lys_ident *ident, struct unres_schema *unres)
{
struct lyxml_elem *node;
const char *value;
GETVAL(value, yin, "name");
ident->name = lydict_insert(module->ctx, value, 0);
if (read_yin_common(module, NULL, (struct lys_node *)ident, yin, OPT_IDENT | OPT_MODULE)) {
return EXIT_FAILURE;
}
LY_TREE_FOR(yin->child, node) {
if (!node->ns || strcmp(node->ns->value, LY_NSYIN)) {
/* garbage */
continue;
}
if (!strcmp(node->name, "base")) {
if (ident->base) {
LOGVAL(LYE_TOOMANY, LOGLINE(node), "base", "identity");
return EXIT_FAILURE;
}
GETVAL(value, node, "name");
add_unres_str(module, unres, ident, UNRES_IDENT, value, LOGLINE(node));
} else {
LOGVAL(LYE_INSTMT, LOGLINE(node), node->name, "identity");
return EXIT_FAILURE;
}
}
error:
return EXIT_SUCCESS;
}
static int
read_restr_substmt(struct ly_ctx *ctx, struct lys_restr *restr, struct lyxml_elem *yin)
{
struct lyxml_elem *child;
const char *value;
LY_TREE_FOR(yin->child, child) {
if (!child->ns || strcmp(child->ns->value, LY_NSYIN)) {
/* garbage */
continue;
}
if (!strcmp(child->name, "description")) {
if (restr->dsc) {
LOGVAL(LYE_TOOMANY, LOGLINE(child), child->name, yin->name);
return EXIT_FAILURE;
}
restr->dsc = read_yin_subnode(ctx, child, "text");
if (!restr->dsc) {
return EXIT_FAILURE;
}
} else if (!strcmp(child->name, "reference")) {
if (restr->ref) {
LOGVAL(LYE_TOOMANY, LOGLINE(child), child->name, yin->name);
return EXIT_FAILURE;
}
restr->ref = read_yin_subnode(ctx, child, "text");
if (!restr->ref) {
return EXIT_FAILURE;
}
} else if (!strcmp(child->name, "error-app-tag")) {
if (restr->eapptag) {
LOGVAL(LYE_TOOMANY, LOGLINE(child), child->name, yin->name);
return EXIT_FAILURE;
}
GETVAL(value, child, "value");
restr->eapptag = lydict_insert(ctx, value, 0);
} else if (!strcmp(child->name, "error-message")) {
if (restr->emsg) {
LOGVAL(LYE_TOOMANY, LOGLINE(child), child->name, yin->name);
return EXIT_FAILURE;
}
restr->emsg = read_yin_subnode(ctx, child, "value");
if (!restr->emsg) {
return EXIT_FAILURE;
}
} else {
LOGVAL(LYE_INSTMT, LOGLINE(child), child->name);
return EXIT_FAILURE;
}
}
return EXIT_SUCCESS;
error:
return EXIT_FAILURE;
}
static int
fill_yin_type(struct lys_module *module, struct lys_node *parent, struct lyxml_elem *yin, struct lys_type *type,
struct unres_schema *unres)
{
#define REGEX_ERR_LEN 128
const char *value, *delim, *name;
char regex_err[REGEX_ERR_LEN];
struct lyxml_elem *next, *node;
struct lys_restr **restr;
struct lys_type_bit bit;
regex_t preq;
int i, j, ret;
int64_t v, v_;
int64_t p, p_;
GETVAL(value, yin, "name");
delim = strchr(value, ':');
if (delim) {
type->prefix = lydict_insert(module->ctx, value, delim - value);
delim++;
value += delim-value;
}
type->der = resolve_superior_type(value, type->prefix, module, parent);
if (!type->der) {
/* HACK for unres */
type->der = (struct lys_tpdf *)parent;
add_unres_str(module, unres, type, UNRES_TYPE_DER, value, LOGLINE(yin));
return EXIT_SUCCESS;
}
type->base = type->der->type.base;
switch (type->base) {
case LY_TYPE_BITS:
/* RFC 6020 9.7.4 - bit */
/* get bit specifications, at least one must be present */
LY_TREE_FOR_SAFE(yin->child, next, node) {
if (!node->ns || strcmp(node->ns->value, LY_NSYIN)) {
/* garbage */
lyxml_free_elem(module->ctx, node);
continue;
}
if (!strcmp(node->name, "bit")) {
type->info.bits.count++;
} else {
LOGVAL(LYE_INSTMT, LOGLINE(yin->child), yin->child->name);
goto error;
}
}
if (!type->der->type.der && !type->info.bits.count) {
/* type is derived directly from buit-in bits type and bit statement is required */
LOGVAL(LYE_MISSSTMT2, LOGLINE(yin), "bit", "type");
goto error;
}
if (type->der->type.der && type->info.bits.count) {
/* type is not directly derived from buit-in bits type and bit statement is prohibited */
LOGVAL(LYE_INSTMT, LOGLINE(yin), "bit");
goto error;
}
type->info.bits.bit = calloc(type->info.bits.count, sizeof *type->info.bits.bit);
p = 0;
i = -1;
LY_TREE_FOR(yin->child, next) {
i++;
GETVAL(value, next, "name");
if (check_identifier(value, LY_IDENT_SIMPLE, LOGLINE(next), NULL, NULL)) {
goto error;
}
type->info.bits.bit[i].name = lydict_insert(module->ctx, value, strlen(value));
if (read_yin_common(module, NULL, (struct lys_node *)&type->info.bits.bit[i], next, 0)) {
type->info.bits.count = i + 1;
goto error;
}
/* check the name uniqueness */
for (j = 0; j < i; j++) {
if (!strcmp(type->info.bits.bit[j].name, type->info.bits.bit[i].name)) {
LOGVAL(LYE_BITS_DUPNAME, LOGLINE(next), type->info.bits.bit[i].name);
type->info.bits.count = i + 1;
goto error;
}
}
p_ = -1;
LY_TREE_FOR(next->child, node) {
if (!node->ns || strcmp(node->ns->value, LY_NSYIN)) {
/* garbage */
continue;
}
if (!strcmp(node->name, "position")) {
GETVAL(value, node, "value");
p_ = strtoll(value, NULL, 10);
/* range check */
if (p_ < 0 || p_ > UINT32_MAX) {
LOGVAL(LYE_INARG, LOGLINE(node), value, "bit/position");
type->info.bits.count = i + 1;
goto error;
}
type->info.bits.bit[i].pos = (uint32_t)p_;
/* keep the highest enum value for automatic increment */
if (type->info.bits.bit[i].pos >= p) {
p = type->info.bits.bit[i].pos;
p++;
} else {
/* check that the value is unique */
for (j = 0; j < i; j++) {
if (type->info.bits.bit[j].pos == type->info.bits.bit[i].pos) {
LOGVAL(LYE_BITS_DUPVAL, LOGLINE(node), type->info.bits.bit[i].pos, type->info.bits.bit[i].name);
type->info.bits.count = i + 1;
goto error;
}
}
}
} else {
LOGVAL(LYE_INSTMT, LOGLINE(next), next->name);
goto error;
}
}
if (p_ == -1) {
/* assign value automatically */
if (p > UINT32_MAX) {
LOGVAL(LYE_INARG, LOGLINE(next), "4294967295", "bit/position");
type->info.bits.count = i + 1;
goto error;
}
type->info.bits.bit[i].pos = (uint32_t)p;
p++;
}
/* keep them ordered by position */
j = i;
while (j && type->info.bits.bit[j - 1].pos > type->info.bits.bit[j].pos) {
/* switch them */
memcpy(&bit, &type->info.bits.bit[j], sizeof bit);
memcpy(&type->info.bits.bit[j], &type->info.bits.bit[j - 1], sizeof bit);
memcpy(&type->info.bits.bit[j - 1], &bit, sizeof bit);
j--;
}
}
break;
case LY_TYPE_DEC64:
/* RFC 6020 9.2.4 - range and 9.3.4 - fraction-digits */
LY_TREE_FOR(yin->child, node) {
if (!node->ns || strcmp(node->ns->value, LY_NSYIN)) {
/* garbage */
continue;
}
if (!strcmp(node->name, "range")) {
if (type->info.dec64.range) {
LOGVAL(LYE_TOOMANY, LOGLINE(node), node->name, yin->name);
goto error;
}
GETVAL(value, node, "value");
if (check_length_range(value, type)) {
LOGVAL(LYE_INARG, LOGLINE(node), value, "range");
goto error;
}
type->info.dec64.range = calloc(1, sizeof *type->info.dec64.range);
type->info.dec64.range->expr = lydict_insert(module->ctx, value, 0);
/* get possible substatements */
if (read_restr_substmt(module->ctx, type->info.dec64.range, node)) {
goto error;
}
} else if (!strcmp(node->name, "fraction-digits")) {
if (type->info.dec64.dig) {
LOGVAL(LYE_TOOMANY, LOGLINE(node), node->name, yin->name);
goto error;
}
GETVAL(value, node, "value");
v = strtol(value, NULL, 10);
/* range check */
if (v < 1 || v > 18) {
LOGVAL(LYE_INARG, LOGLINE(node), value, node->name);
goto error;
}
type->info.dec64.dig = (uint8_t)v;
} else {
LOGVAL(LYE_INSTMT, LOGLINE(node), node->name);
goto error;
}
}
/* mandatory sub-statement(s) check */
if (!type->info.dec64.dig && !type->der->type.der) {
/* decimal64 type directly derived from built-in type requires fraction-digits */
LOGVAL(LYE_MISSSTMT2, LOGLINE(yin), "fraction-digits", "type");
goto error;
}
if (type->info.dec64.dig && type->der->type.der) {
/* type is not directly derived from buit-in type and fraction-digits statement is prohibited */
LOGVAL(LYE_INSTMT, LOGLINE(yin), "fraction-digits");
goto error;
}
break;
case LY_TYPE_ENUM:
/* RFC 6020 9.6 - enum */
/* get enum specifications, at least one must be present */
LY_TREE_FOR_SAFE(yin->child, next, node) {
if (!node->ns || strcmp(node->ns->value, LY_NSYIN)) {
/* garbage */
lyxml_free_elem(module->ctx, node);
continue;
}
if (!strcmp(node->name, "enum")) {
type->info.enums.count++;
} else {
LOGVAL(LYE_INSTMT, LOGLINE(yin->child), yin->child->name);
goto error;
}
}
if (!type->der->type.der && !type->info.enums.count) {
/* type is derived directly from buit-in enumeartion type and enum statement is required */
LOGVAL(LYE_MISSSTMT2, LOGLINE(yin), "enum", "type");
goto error;
}
if (type->der->type.der && type->info.enums.count) {
/* type is not directly derived from buit-in enumeration type and enum statement is prohibited */
LOGVAL(LYE_INSTMT, LOGLINE(yin), "enum");
goto error;
}
type->info.enums.enm = calloc(type->info.enums.count, sizeof *type->info.enums.enm);
v = 0;
i = -1;
LY_TREE_FOR(yin->child, next) {
i++;
GETVAL(value, next, "name");
if (check_identifier(value, LY_IDENT_SIMPLE, LOGLINE(next), NULL, NULL)) {
goto error;
}
type->info.enums.enm[i].name = lydict_insert(module->ctx, value, strlen(value));
if (read_yin_common(module, NULL, (struct lys_node *)&type->info.enums.enm[i], next, 0)) {
type->info.enums.count = i + 1;
goto error;
}
/* the assigned name MUST NOT have any leading or trailing whitespace characters */
value = type->info.enums.enm[i].name;
if (isspace(value[0]) || isspace(value[strlen(value) - 1])) {
LOGVAL(LYE_ENUM_WS, LOGLINE(next), value);
type->info.enums.count = i + 1;
goto error;
}
/* check the name uniqueness */
for (j = 0; j < i; j++) {
if (!strcmp(type->info.enums.enm[j].name, type->info.enums.enm[i].name)) {
LOGVAL(LYE_ENUM_DUPNAME, LOGLINE(next), type->info.enums.enm[i].name);
type->info.enums.count = i + 1;
goto error;
}
}
v_ = -1;
LY_TREE_FOR(next->child, node) {
if (!node->ns || strcmp(node->ns->value, LY_NSYIN)) {
/* garbage */
continue;
}
if (!strcmp(node->name, "value")) {
GETVAL(value, node, "value");
v_ = strtoll(value, NULL, 10);
/* range check */
if (v_ < INT32_MIN || v_ > INT32_MAX) {
LOGVAL(LYE_INARG, LOGLINE(node), value, "enum/value");
type->info.enums.count = i + 1;
goto error;
}
type->info.enums.enm[i].value = v_;
/* keep the highest enum value for automatic increment */
if (type->info.enums.enm[i].value > v) {
v = type->info.enums.enm[i].value;
v++;
} else {
/* check that the value is unique */
for (j = 0; j < i; j++) {
if (type->info.enums.enm[j].value == type->info.enums.enm[i].value) {
LOGVAL(LYE_ENUM_DUPVAL, LOGLINE(node), type->info.enums.enm[i].value,
type->info.enums.enm[i].name);
type->info.enums.count = i + 1;
goto error;
}
}
}
} else {
LOGVAL(LYE_INSTMT, LOGLINE(next), next->name);
goto error;
}
}
if (v_ == -1) {
/* assign value automatically */
if (v > INT32_MAX) {
LOGVAL(LYE_INARG, LOGLINE(next), "2147483648", "enum/value");
type->info.enums.count = i + 1;
goto error;
}
type->info.enums.enm[i].value = v;
v++;
}
}
break;
case LY_TYPE_IDENT:
/* RFC 6020 9.10 - base */
/* get base specification, exactly one must be present */
LY_TREE_FOR_SAFE(yin->child, next, node) {
if (!node->ns || strcmp(node->ns->value, LY_NSYIN)) {
/* garbage */
lyxml_free_elem(module->ctx, node);
continue;
}
if (strcmp(yin->child->name, "base")) {
LOGVAL(LYE_INSTMT, LOGLINE(yin->child), yin->child->name);
goto error;
}
}
if (!yin->child) {
if (type->der->type.der) {
/* this is just a derived type with no base specified/required */
break;
}
LOGVAL(LYE_MISSSTMT2, LOGLINE(yin), "base", "type");
goto error;
}
if (yin->child->next) {
LOGVAL(LYE_TOOMANY, LOGLINE(yin->child->next), yin->child->next->name, yin->name);
goto error;
}
GETVAL(value, yin->child, "name");
add_unres_str(module, unres, type, UNRES_TYPE_IDENTREF, value, LOGLINE(yin->child));
break;
case LY_TYPE_INST:
/* RFC 6020 9.13.2 - require-instance */
LY_TREE_FOR(yin->child, node) {
if (!node->ns || strcmp(node->ns->value, LY_NSYIN)) {
/* garbage */
continue;
}
if (!strcmp(node->name, "require-instance")) {
if (type->info.inst.req) {
LOGVAL(LYE_TOOMANY, LOGLINE(node), node->name, yin->name);
goto error;
}
GETVAL(value, node, "value");
if (!strcmp(value, "true")) {
type->info.inst.req = 1;
} else if (!strcmp(value, "false")) {
type->info.inst.req = -1;
} else {
LOGVAL(LYE_INARG, LOGLINE(node), value, node->name);
goto error;
}
} else {
LOGVAL(LYE_INSTMT, LOGLINE(node), node->name);
goto error;
}
}
break;
case LY_TYPE_BINARY:
/* RFC 6020 9.8.1, 9.4.4 - length, number of octets it contains */
case LY_TYPE_INT8:
case LY_TYPE_INT16:
case LY_TYPE_INT32:
case LY_TYPE_INT64:
case LY_TYPE_UINT8:
case LY_TYPE_UINT16:
case LY_TYPE_UINT32:
case LY_TYPE_UINT64:
/* RFC 6020 9.2.4 - range */
/* length and range are actually the same restriction, so process
* them by this common code, we just need to differ the name and
* structure where the information will be stored
*/
if (type->base == LY_TYPE_BINARY) {
restr = &type->info.binary.length;
name = "length";
} else {
restr = &type->info.num.range;
name = "range";
}
LY_TREE_FOR(yin->child, node) {
if (!node->ns || strcmp(node->ns->value, LY_NSYIN)) {
/* garbage */
continue;
}
if (!strcmp(node->name, name)) {
if (*restr) {
LOGVAL(LYE_TOOMANY, LOGLINE(node), node->name, yin->name);
goto error;
}
GETVAL(value, node, "value");
if (check_length_range(value, type)) {
LOGVAL(LYE_INARG, LOGLINE(node), value, name);
goto error;
}
*restr = calloc(1, sizeof **restr);
(*restr)->expr = lydict_insert(module->ctx, value, 0);
/* get possible substatements */
if (read_restr_substmt(module->ctx, *restr, node)) {
goto error;
}
} else {
LOGVAL(LYE_INSTMT, LOGLINE(node), node->name);
goto error;
}
}
break;
case LY_TYPE_LEAFREF:
/* RFC 6020 9.9.2 - path */
LY_TREE_FOR(yin->child, node) {
if (!node->ns || strcmp(node->ns->value, LY_NSYIN)) {
/* garbage */
continue;
}
if (!strcmp(node->name, "path")) {
if (type->info.lref.path) {
LOGVAL(LYE_TOOMANY, LOGLINE(node), node->name, yin->name);
goto error;
}
GETVAL(value, node, "value");
type->info.lref.path = lydict_insert(module->ctx, value, 0);
add_unres_mnode(module, unres, type, UNRES_TYPE_LEAFREF, parent, LOGLINE(yin));
} else {
LOGVAL(LYE_INSTMT, LOGLINE(node), node->name);
goto error;
}
}
if (!type->info.lref.path) {
if (type->der->type.der) {
/* this is just a derived type with no path specified/required */
break;
}
LOGVAL(LYE_MISSSTMT2, LOGLINE(yin), "path", "type");
goto error;
}
break;
case LY_TYPE_STRING:
/* RFC 6020 9.4.4 - length */
/* RFC 6020 9.4.6 - pattern */
i = 0;
LY_TREE_FOR_SAFE(yin->child, next, node) {
if (!node->ns || strcmp(node->ns->value, LY_NSYIN)) {
/* garbage */
lyxml_free_elem(module->ctx, node);
continue;
}
if (!strcmp(node->name, "length")) {
if (type->info.str.length) {
LOGVAL(LYE_TOOMANY, LOGLINE(node), node->name, yin->name);
goto error;
}
GETVAL(value, node, "value");
if (check_length_range(value, type)) {
LOGVAL(LYE_INARG, LOGLINE(node), value, "length");
goto error;
}
type->info.str.length = calloc(1, sizeof *type->info.str.length);
type->info.str.length->expr = lydict_insert(module->ctx, value, 0);
/* get possible sub-statements */
if (read_restr_substmt(module->ctx, type->info.str.length, node)) {
goto error;
}
lyxml_free_elem(module->ctx, node);
} else if (!strcmp(node->name, "pattern")) {
i++;
} else {
LOGVAL(LYE_INSTMT, LOGLINE(node), node->name);
goto error;
}
}
/* store patterns in array */
if (i) {
type->info.str.patterns = calloc(i, sizeof *type->info.str.patterns);
LY_TREE_FOR(yin->child, node) {
GETVAL(value, yin->child, "value");
/* check that the regex is valid */
if ((ret = regcomp(&preq, value, REG_EXTENDED | REG_NOSUB)) != 0) {
regerror(ret, &preq, regex_err, REGEX_ERR_LEN);
regfree(&preq);
LOGVAL(LYE_INREGEX, LOGLINE(node), value, regex_err);
free(type->info.str.patterns);
goto error;
}
regfree(&preq);
type->info.str.patterns[type->info.str.pat_count].expr = lydict_insert(module->ctx, value, 0);
/* get possible sub-statements */
if (read_restr_substmt(module->ctx, &type->info.str.patterns[type->info.str.pat_count], yin->child)) {
free(type->info.str.patterns);
goto error;
}
type->info.str.pat_count++;
}
}
break;
case LY_TYPE_UNION:
/* RFC 6020 7.4 - type */
/* count number of types in union */
i = 0;
LY_TREE_FOR_SAFE(yin->child, next, node) {
if (!node->ns || strcmp(node->ns->value, LY_NSYIN)) {
/* garbage */
lyxml_free_elem(module->ctx, node);
continue;
}
if (!strcmp(node->name, "type")) {
i++;
} else {
LOGVAL(LYE_INSTMT, LOGLINE(node), node->name);
goto error;
}
}
if (!i) {
if (type->der->type.der) {
/* this is just a derived type with no base specified/required */
break;
}
LOGVAL(LYE_MISSSTMT2, LOGLINE(yin), "type", "(union) type");
goto error;
}
/* allocate array for union's types ... */
type->info.uni.types = calloc(i, sizeof *type->info.uni.types);
/* ... and fill the structures */
LY_TREE_FOR(yin->child, node) {
if (fill_yin_type(module, parent, node, &type->info.uni.types[type->info.uni.count], unres)) {
goto error;
}
type->info.uni.count++;
/* union's type cannot be empty or leafref */
if (type->info.uni.types[type->info.uni.count - 1].base == LY_TYPE_EMPTY) {
LOGVAL(LYE_INARG, LOGLINE(node), "empty", node->name);
goto error;
} else if (type->info.uni.types[type->info.uni.count - 1].base == LY_TYPE_LEAFREF) {
LOGVAL(LYE_INARG, LOGLINE(node), "leafref", node->name);
goto error;
}
}
break;
default:
/* no sub-statement allowed in:
* LY_TYPE_BOOL, LY_TYPE_EMPTY
*/
LY_TREE_FOR(yin->child, node) {
if (node->ns && !strcmp(node->ns->value, LY_NSYIN)) {
LOGVAL(LYE_INSTMT, LOGLINE(yin->child), yin->child->name);
goto error;
}
}
break;
}
return EXIT_SUCCESS;
error:
return EXIT_FAILURE;
}
static int
fill_yin_typedef(struct lys_module *module, struct lys_node *parent, struct lyxml_elem *yin, struct lys_tpdf *tpdf, struct unres_schema *unres)
{
const char *value;
struct lyxml_elem *node;
int has_type = 0, dflt_line;
GETVAL(value, yin, "name");
if (check_identifier(value, LY_IDENT_TYPE, LOGLINE(yin), module, parent)) {
goto error;
}
tpdf->name = lydict_insert(module->ctx, value, strlen(value));
/* generic part - status, description, reference */
if (read_yin_common(module, NULL, (struct lys_node *)tpdf, yin, OPT_IDENT | OPT_MODULE)) {
goto error;
}
LY_TREE_FOR(yin->child, node) {
if (!node->ns || strcmp(node->ns->value, LY_NSYIN)) {
/* garbage */
continue;
}
if (!strcmp(node->name, "type")) {
if (tpdf->type.der || has_type) {
LOGVAL(LYE_TOOMANY, LOGLINE(node), node->name, yin->name);
goto error;
}
if (fill_yin_type(module, parent, node, &tpdf->type, unres)) {
goto error;
}
has_type = 1;
} else if (!strcmp(node->name, "default")) {
if (tpdf->dflt) {
LOGVAL(LYE_TOOMANY, LOGLINE(node), node->name, yin->name);
goto error;
}
GETVAL(value, node, "value");
tpdf->dflt = lydict_insert(module->ctx, value, strlen(value));
dflt_line = LOGLINE(node);
} else if (!strcmp(node->name, "units")) {
if (tpdf->units) {
LOGVAL(LYE_TOOMANY, LOGLINE(node), node->name, yin->name);
goto error;
}
GETVAL(value, node, "name");
tpdf->units = lydict_insert(module->ctx, value, strlen(value));
} else {
LOGVAL(LYE_INSTMT, LOGLINE(node), value);
goto error;
}
}
/* check mandatory value */
if (!has_type) {
LOGVAL(LYE_MISSSTMT2, LOGLINE(yin), "type", yin->name);
goto error;
}
/* check default value */
if (tpdf->dflt) {
add_unres_str(module, unres, &tpdf->type, UNRES_TYPE_DFLT, tpdf->dflt, dflt_line);
}
return EXIT_SUCCESS;
error:
return EXIT_FAILURE;
}
static int
fill_yin_feature(struct lys_module *module, struct lyxml_elem *yin, struct lys_feature *f, struct unres_schema *unres)
{
const char *value;
struct lyxml_elem *child, *next;
int c = 0;
GETVAL(value, yin, "name");
if (check_identifier(value, LY_IDENT_FEATURE, LOGLINE(yin), module, NULL)) {
goto error;
}
f->name = lydict_insert(module->ctx, value, strlen(value));
f->module = module;
if (read_yin_common(module, NULL, (struct lys_node *)f, yin, 0)) {
goto error;
}
LY_TREE_FOR_SAFE(yin->child, next, child) {
if (!child->ns || strcmp(child->ns->value, LY_NSYIN)) {
/* garbage */
lyxml_free_elem(module->ctx, child);
continue;
}
if (!strcmp(child->name, "if-feature")) {
c++;
} else {
LOGVAL(LYE_INSTMT, LOGLINE(child), child->name);
goto error;
}
}
if (c) {
f->features = calloc(c, sizeof *f->features);
}
LY_TREE_FOR(yin->child, child) {
GETVAL(value, child, "name");
add_unres_str(module, unres, &f->features[f->features_size++], UNRES_IFFEAT, value, LOGLINE(child));
}
return EXIT_SUCCESS;
error:
return EXIT_FAILURE;
}
static int
fill_yin_must(struct lys_module *module, struct lyxml_elem *yin, struct lys_restr *must)
{
const char *value;
GETVAL(value, yin, "condition");
must->expr = lydict_insert(module->ctx, value, strlen(value));
return read_restr_substmt(module->ctx, must, yin);
error: /* GETVAL requires this label */
return EXIT_FAILURE;
}
/*
* type: 0 - min, 1 - max
*/
static int
deviate_minmax(struct lys_node *target, struct lyxml_elem *node, struct lys_deviate *d, int type)
{
const char *value;
char *endptr;
unsigned long val;
uint32_t *ui32val;
/* check target node type */
if (target->nodetype == LYS_LEAFLIST) {
if (type) {
ui32val = &((struct lys_node_leaflist *)target)->max;
} else {
ui32val = &((struct lys_node_leaflist *)target)->min;
}
} else if (target->nodetype == LYS_LIST) {
if (type) {
ui32val = &((struct lys_node_list *)target)->max;
} else {
ui32val = &((struct lys_node_list *)target)->min;
}
} else {
LOGVAL(LYE_INSTMT, LOGLINE(node), node->name);
LOGVAL(LYE_SPEC, 0, "Target node does not allow \"%s\" property.", node->name);
goto error;
}
GETVAL(value, node, "value");
while (isspace(value[0])) {
value++;
}
/* convert it to uint32_t */
errno = 0;
endptr = NULL;
val = strtoul(value, &endptr, 10);
if (*endptr || value[0] == '-' || errno || val > UINT32_MAX) {
LOGVAL(LYE_INARG, LOGLINE(node), value, node->name);
goto error;
}
if (type) {
d->max = (uint32_t)val;
} else {
d->min = (uint32_t)val;
}
if (d->mod == LY_DEVIATE_ADD) {
/* check that there is no current value */
if (*ui32val) {
LOGVAL(LYE_INSTMT, LOGLINE(node), node->name);
LOGVAL(LYE_SPEC, 0, "Adding property that already exists.");
goto error;
}
}
if (d->mod == LY_DEVIATE_DEL) {
/* check values */
if ((uint32_t)val != *ui32val) {
LOGVAL(LYE_INARG, LOGLINE(node), value, node->name);
LOGVAL(LYE_SPEC, 0, "Value differs from the target being deleted.");
goto error;
}
/* remove current min-elements value of the target */
*ui32val = 0;
} else { /* add (already checked) and replace */
/* set new value specified in deviation */
*ui32val = (uint32_t)val;
}
return EXIT_SUCCESS;
error:
return EXIT_FAILURE;
}
static int
fill_yin_deviation(struct lys_module *module, struct lyxml_elem *yin, struct lys_deviation *dev)
{
const char *value, **stritem;
struct lyxml_elem *next, *child, *develem;
int c_dev = 0, c_must, c_uniq;
int f_min = 0; /* flags */
int i, j;
struct lys_deviate *d = NULL;
struct lys_node *mnode = NULL;
struct lys_node_choice *choice = NULL;
struct lys_node_leaf *leaf = NULL;
struct lys_node_list *list = NULL;
struct lys_type *t = NULL;
uint8_t *trg_must_size = NULL;
struct lys_restr **trg_must = NULL;
GETVAL(value, yin, "target-node");
dev->target_name = lydict_insert(module->ctx, value, 0);
/* resolve target node */
dev->target = resolve_schema_nodeid(dev->target_name, NULL, module, LYS_AUGMENT);
if (!dev->target) {
LOGVAL(LYE_INARG, LOGLINE(yin), dev->target_name, yin->name);
goto error;
}
if (dev->target->module == module) {
LOGVAL(LYE_SPEC, LOGLINE(yin), "Deviating own module is not allowed.");
goto error;
}
/* mark the target module as deviated */
dev->target->module->deviated = 1;
LY_TREE_FOR_SAFE(yin->child, next, child) {
if (!child->ns || strcmp(child->ns->value, LY_NSYIN)) {
/* garbage */
lyxml_free_elem(module->ctx, child);
continue;
}
if (!strcmp(child->name, "description")) {
if (dev->dsc) {
LOGVAL(LYE_TOOMANY, LOGLINE(child), child->name, yin->name);
goto error;
}
dev->dsc = read_yin_subnode(module->ctx, child, "text");
if (!dev->dsc) {
goto error;
}
} else if (!strcmp(child->name, "reference")) {
if (dev->ref) {
LOGVAL(LYE_TOOMANY, LOGLINE(child), child->name, yin->name);
goto error;
}
dev->ref = read_yin_subnode(module->ctx, child, "text");
if (!dev->ref) {
goto error;
}
} else if (!strcmp(child->name, "deviate")) {
c_dev++;
/* skip lyxml_free_elem() at the end of the loop, node will be
* further processed later
*/
continue;
} else {
LOGVAL(LYE_INSTMT, LOGLINE(child), child->name);
goto error;
}
lyxml_free_elem(module->ctx, child);
}
if (c_dev) {
dev->deviate = calloc(c_dev, sizeof *dev->deviate);
}
LY_TREE_FOR(yin->child, develem) {
/* init */
f_min = 0;
c_must = 0;
c_uniq = 0;
/* get deviation type */
GETVAL(value, develem, "value");
if (!strcmp(value, "not-supported")) {
dev->deviate[dev->deviate_size].mod = LY_DEVIATE_NO;
/* no property expected in this case */
if (develem->child) {
LOGVAL(LYE_INSTMT, LOGLINE(develem->child), develem->child->name);
goto error;
}
/* and neither any other deviate statement is expected,
* not-supported deviation must be the only deviation of the target
*/
if (dev->deviate_size || develem->next) {
LOGVAL(LYE_INARG, LOGLINE(develem), value, develem->name);
LOGVAL(LYE_SPEC, 0, "\"not-supported\" deviation cannot be combined with any other deviation.");
goto error;
}
/* remove target node */
ly_mnode_free(dev->target);
dev->target = NULL;
dev->deviate_size = 1;
return EXIT_SUCCESS;
} else if (!strcmp(value, "add")) {
dev->deviate[dev->deviate_size].mod = LY_DEVIATE_ADD;
} else if (!strcmp(value, "replace")) {
dev->deviate[dev->deviate_size].mod = LY_DEVIATE_RPL;
} else if (!strcmp(value, "delete")) {
dev->deviate[dev->deviate_size].mod = LY_DEVIATE_DEL;
} else {
LOGVAL(LYE_INARG, LOGLINE(develem), value, develem->name);
goto error;
}
d = &dev->deviate[dev->deviate_size];
/* process deviation properties */
LY_TREE_FOR_SAFE(develem->child, next, child) {
if (!child->ns || strcmp(child->ns->value, LY_NSYIN)) {
/* garbage */
lyxml_free_elem(module->ctx, child);
continue;
}
if (!strcmp(child->name, "config")) {
if (d->flags & LYS_CONFIG_MASK) {
LOGVAL(LYE_TOOMANY, LOGLINE(child), child->name, yin->name);
goto error;
}
/* for we deviate from RFC 6020 and allow config property even it is/is not
* specified in the target explicitly since config property inherits. So we expect
* that config is specified in every node. But for delete, we check that the value
* is the same as here in deviation
*/
GETVAL(value, child, "value");
if (!strcmp(value, "false")) {
d->flags |= LYS_CONFIG_R;
} else if (!strcmp(value, "true")) {
d->flags |= LYS_CONFIG_W;
} else {
LOGVAL(LYE_INARG, LOGLINE(child), value, child->name);
goto error;
}
if (d->mod == LY_DEVIATE_DEL) {
/* check values */
if ((d->flags & LYS_CONFIG_MASK) != (dev->target->flags & LYS_CONFIG_MASK)) {
LOGVAL(LYE_INARG, LOGLINE(child), value, child->name);
LOGVAL(LYE_SPEC, 0, "Value differs from the target being deleted.");
goto error;
}
/* remove current config value of the target ... */
dev->target->flags &= ~LYS_CONFIG_MASK;
/* ... and inherit config value from the target's parent */
if (dev->target->parent) {
dev->target->flags |= dev->target->parent->flags & LYS_CONFIG_MASK;
} else {
/* default config is true */
dev->target->flags |= LYS_CONFIG_W;
}
} else { /* add and replace are the same in this case */
/* remove current config value of the target ... */
dev->target->flags &= ~LYS_CONFIG_MASK;
/* ... and replace it with the value specified in deviation */
dev->target->flags |= d->flags & LYS_CONFIG_MASK;
}
} else if (!strcmp(child->name, "default")) {
if (d->dflt) {
LOGVAL(LYE_TOOMANY, LOGLINE(child), child->name, yin->name);
goto error;
}
GETVAL(value, child, "value");
d->dflt = lydict_insert(module->ctx, value, 0);
if (dev->target->nodetype == LYS_CHOICE) {
choice = (struct lys_node_choice *)dev->target;
if (d->mod == LY_DEVIATE_ADD) {
/* check that there is no current value */
if (choice->dflt) {
LOGVAL(LYE_INSTMT, LOGLINE(child), child->name);
LOGVAL(LYE_SPEC, 0, "Adding property that already exists.");
goto error;
}
}
mnode = resolve_schema_nodeid(d->dflt, (struct lys_node *)choice, choice->module, LYS_CHOICE);
if (d->mod == LY_DEVIATE_DEL) {
if (!choice->dflt || choice->dflt != mnode) {
LOGVAL(LYE_INARG, LOGLINE(child), value, child->name);
LOGVAL(LYE_SPEC, 0, "Value differs from the target being deleted.");
goto error;
}
} else { /* add (already checked) and replace */
choice->dflt = mnode;
if (!choice->dflt) {
/* default branch not found */
LOGVAL(LYE_INARG, LOGLINE(yin), value, "default");
goto error;
}
}
} else if (dev->target->nodetype == LYS_LEAF) {
leaf = (struct lys_node_leaf *)dev->target;
if (d->mod == LY_DEVIATE_ADD) {
/* check that there is no current value */
if (leaf->dflt) {
LOGVAL(LYE_INSTMT, LOGLINE(child), child->name);
LOGVAL(LYE_SPEC, 0, "Adding property that already exists.");
goto error;
}
}
if (d->mod == LY_DEVIATE_DEL) {
if (!leaf->dflt || leaf->dflt != d->dflt) {
LOGVAL(LYE_INARG, LOGLINE(child), value, child->name);
LOGVAL(LYE_SPEC, 0, "Value differs from the target being deleted.");
goto error;
}
/* remove value */
lydict_remove(leaf->module->ctx, leaf->dflt);
leaf->dflt = NULL;
} else { /* add (already checked) and replace */
/* remove value */
lydict_remove(leaf->module->ctx, leaf->dflt);
/* set new value */
leaf->dflt = lydict_insert(leaf->module->ctx, d->dflt, 0);
}
} else {
/* invalid target for default value */
LOGVAL(LYE_INSTMT, LOGLINE(child), child->name);
LOGVAL(LYE_SPEC, 0, "Target node does not allow \"%s\" property.", child->name);
goto error;
}
} else if (!strcmp(child->name, "mandatory")) {
if (d->flags & LYS_MAND_MASK) {
LOGVAL(LYE_TOOMANY, LOGLINE(child), child->name, yin->name);
goto error;
}
/* check target node type */
if (!(dev->target->nodetype &= (LYS_LEAF | LYS_CHOICE | LYS_ANYXML))) {
LOGVAL(LYE_INSTMT, LOGLINE(child), child->name);
LOGVAL(LYE_SPEC, 0, "Target node does not allow \"%s\" property.", child->name);
goto error;
}
GETVAL(value, child, "value");
if (!strcmp(value, "false")) {
d->flags |= LYS_MAND_FALSE;
} else if (!strcmp(value, "true")) {
d->flags |= LYS_MAND_TRUE;
} else {
LOGVAL(LYE_INARG, LOGLINE(child), value, child->name);
goto error;
}
if (d->mod == LY_DEVIATE_ADD) {
/* check that there is no current value */
if (dev->target->flags & LYS_MAND_MASK) {
LOGVAL(LYE_INSTMT, LOGLINE(child), child->name);
LOGVAL(LYE_SPEC, 0, "Adding property that already exists.");
goto error;
}
}
if (d->mod == LY_DEVIATE_DEL) {
/* check values */
if ((d->flags & LYS_MAND_MASK) != (dev->target->flags & LYS_MAND_MASK)) {
LOGVAL(LYE_INARG, LOGLINE(child), value, child->name);
LOGVAL(LYE_SPEC, 0, "Value differs from the target being deleted.");
goto error;
}
/* remove current mandatory value of the target */
dev->target->flags &= ~LYS_MAND_MASK;
} else { /* add (already checked) and replace */
/* remove current mandatory value of the target ... */
dev->target->flags &= ~LYS_MAND_MASK;
/* ... and replace it with the value specified in deviation */
dev->target->flags |= d->flags & LYS_MAND_MASK;
}
} else if (!strcmp(child->name, "min-elements")) {
if (f_min) {
LOGVAL(LYE_TOOMANY, LOGLINE(child), child->name, yin->name);
goto error;
}
f_min = 1;
if (deviate_minmax(dev->target, child, d, 0)) {
goto error;
}
} else if (!strcmp(child->name, "max-elements")) {
if (d->max) {
LOGVAL(LYE_TOOMANY, LOGLINE(child), child->name, yin->name);
goto error;
}
if (deviate_minmax(dev->target, child, d, 1)) {
goto error;
}
} else if (!strcmp(child->name, "must")) {
c_must++;
/* skip lyxml_free_elem() at the end of the loop, this node will be processed later */
continue;
} else if (!strcmp(child->name, "type")) {
if (d->type) {
LOGVAL(LYE_TOOMANY, LOGLINE(child), child->name, yin->name);
goto error;
}
/* check target node type */
if (dev->target->nodetype == LYS_LEAF) {
t = &((struct lys_node_leaf *)dev->target)->type;
} else if (dev->target->nodetype == LYS_LEAFLIST) {
t = &((struct lys_node_leaflist *)dev->target)->type;
} else {
LOGVAL(LYE_INSTMT, LOGLINE(child), child->name);
LOGVAL(LYE_SPEC, 0, "Target node does not allow \"%s\" property.", child->name);
goto error;
}
if (d->mod == LY_DEVIATE_ADD) {
/* not allowed, type is always present at the target */
LOGVAL(LYE_INSTMT, LOGLINE(child), child->name);
LOGVAL(LYE_SPEC, 0, "Adding property that already exists.");
goto error;
} else if (d->mod == LY_DEVIATE_DEL) {
/* not allowed, type cannot be deleted from the target */
LOGVAL(LYE_INARG, LOGLINE(child), value, child->name);
LOGVAL(LYE_SPEC, 0, "Deleteing type from the target is not allowed.");
goto error;
}
/* replace */
/* remove current units value of the target ... */
ly_type_free(dev->target->module->ctx, t);
/* ... and replace it with the value specified in deviation */
if (fill_yin_type(module, dev->target, child, t, NULL)) {
goto error;
}
d->type = t;
} else if (!strcmp(child->name, "unique")) {
c_uniq++;
/* skip lyxml_free_elem() at the end of the loop, this node will be processed later */
continue;
} else if (!strcmp(child->name, "units")) {
if (d->units) {
LOGVAL(LYE_TOOMANY, LOGLINE(child), child->name, yin->name);
goto error;
}
/* check target node type */
if (dev->target->nodetype == LYS_LEAFLIST) {
stritem = &((struct lys_node_leaflist *)dev->target)->units;
} else if (dev->target->nodetype == LYS_LEAF) {
stritem = &((struct lys_node_leaf *)dev->target)->units;
} else {
LOGVAL(LYE_INSTMT, LOGLINE(child), child->name);
LOGVAL(LYE_SPEC, 0, "Target node does not allow \"%s\" property.", child->name);
goto error;
}
/* get units value */
GETVAL(value, child, "name");
d->units = lydict_insert(module->ctx, value, 0);
/* apply to target */
if (d->mod == LY_DEVIATE_ADD) {
/* check that there is no current value */
if (*stritem) {
LOGVAL(LYE_INSTMT, LOGLINE(child), child->name);
LOGVAL(LYE_SPEC, 0, "Adding property that already exists.");
goto error;
}
}
if (d->mod == LY_DEVIATE_DEL) {
/* check values */
if (*stritem != d->units) {
LOGVAL(LYE_INARG, LOGLINE(child), value, child->name);
LOGVAL(LYE_SPEC, 0, "Value differs from the target being deleted.");
goto error;
}
/* remove current units value of the target */
lydict_remove(dev->target->module->ctx, *stritem);
} else { /* add (already checked) and replace */
/* remove current units value of the target ... */
lydict_remove(dev->target->module->ctx, *stritem);
/* ... and replace it with the value specified in deviation */
*stritem = lydict_insert(module->ctx, value, 0);
}
} else {
LOGVAL(LYE_INSTMT, LOGLINE(child), child->name);
goto error;
}
lyxml_free_elem(module->ctx, child);
}
if (c_must) {
/* check target node type */
switch (dev->target->nodetype) {
case LYS_LEAF:
trg_must = &((struct lys_node_leaf *)dev->target)->must;
trg_must_size = &((struct lys_node_leaf *)dev->target)->must_size;
break;
case LYS_CONTAINER:
trg_must = &((struct lys_node_container *)dev->target)->must;
trg_must_size = &((struct lys_node_container *)dev->target)->must_size;
break;
case LYS_LEAFLIST:
trg_must = &((struct lys_node_leaflist *)dev->target)->must;
trg_must_size = &((struct lys_node_leaflist *)dev->target)->must_size;
break;
case LYS_LIST:
trg_must = &((struct lys_node_list *)dev->target)->must;
trg_must_size = &((struct lys_node_list *)dev->target)->must_size;
break;
case LYS_ANYXML:
trg_must = &((struct lys_node_anyxml *)dev->target)->must;
trg_must_size = &((struct lys_node_anyxml *)dev->target)->must_size;
break;
default:
LOGVAL(LYE_INSTMT, LOGLINE(child), child->name);
LOGVAL(LYE_SPEC, 0, "Target node does not allow \"%s\" property.", child->name);
goto error;
}
if (d->mod == LY_DEVIATE_RPL) {
/* remove target's musts and allocate new array for it */
if (!*trg_must) {
LOGVAL(LYE_INARG, LOGLINE(develem), "replace", "deviate");
LOGVAL(LYE_SPEC, 0, "Property \"must\" to replace does not exists in target.");
goto error;
}
for (i = 0; i < list->must_size; i++) {
ly_restr_free(dev->target->module->ctx, &(*trg_must[i]));
}
free(*trg_must);
*trg_must = d->must = calloc(c_must, sizeof *d->must);
d->must_size = c_must;
*trg_must_size = 0;
} else if (d->mod == LY_DEVIATE_ADD) {
/* reallocate the must array of the target */
d->must = realloc(*trg_must, (c_must + *trg_must_size) * sizeof *d->must);
*trg_must = d->must;
d->must = &(*trg_must[*trg_must_size]);
d->must_size = c_must;
} else { /* LY_DEVIATE_DEL */
d->must = calloc(c_must, sizeof *d->must);
}
}
if (c_uniq) {
/* check target node type */
if (dev->target->nodetype != LYS_LIST) {
LOGVAL(LYE_INSTMT, LOGLINE(child), child->name);
LOGVAL(LYE_SPEC, 0, "Target node does not allow \"%s\" property.", child->name);
goto error;
}
list = (struct lys_node_list *)dev->target;
if (d->mod == LY_DEVIATE_RPL) {
/* remove target's unique and allocate new array for it */
if (!list->unique) {
LOGVAL(LYE_INARG, LOGLINE(develem), "replace", "deviate");
LOGVAL(LYE_SPEC, 0, "Property \"unique\" to replace does not exists in target.");
goto error;
}
for (i = 0; i < list->unique_size; i++) {
free(list->unique[i].leafs);
}
free(list->unique);
list->unique = d->unique = calloc(c_uniq, sizeof *d->unique);
d->unique_size = c_uniq;
list->unique_size = 0;
} else if (d->mod == LY_DEVIATE_ADD) {
/* reallocate the unique array of the target */
d->unique = realloc(list->unique, (c_uniq + list->unique_size) * sizeof *d->unique);
list->unique = d->unique;
d->unique = &list->unique[list->unique_size];
d->unique_size = c_uniq;
} else { /* LY_DEVIATE_DEL */
d->unique = calloc(c_uniq, sizeof *d->unique);
}
}
/* process deviation properties with 0..n cardinality */
LY_TREE_FOR(develem->child, child) {
if (!strcmp(child->name, "must")) {
if (d->mod == LY_DEVIATE_DEL) {
if (fill_yin_must(module, child, &d->must[d->must_size])) {
goto error;
}
/* find must to delete, we are ok with just matching conditions */
for (i = 0; i < *trg_must_size; i++) {
if (d->must[d->must_size].expr == (*trg_must)[i].expr) {
/* we have a match, free the must structure ... */
ly_restr_free(dev->target->module->ctx, &(*trg_must[i]));
/* ... and maintain the array */
(*trg_must_size)--;
if (i != *trg_must_size) {
(*trg_must)[i].expr = (*trg_must)[*trg_must_size].expr;
(*trg_must)[i].dsc = (*trg_must)[*trg_must_size].dsc;
(*trg_must)[i].ref = (*trg_must)[*trg_must_size].ref;
(*trg_must)[i].eapptag = (*trg_must)[*trg_must_size].eapptag;
(*trg_must)[i].emsg = (*trg_must)[*trg_must_size].emsg;
}
if (!(*trg_must_size)) {
free(*trg_must);
*trg_must = NULL;
} else {
(*trg_must)[*trg_must_size].expr = NULL;
(*trg_must)[*trg_must_size].dsc = NULL;
(*trg_must)[*trg_must_size].ref = NULL;
(*trg_must)[*trg_must_size].eapptag = NULL;
(*trg_must)[*trg_must_size].emsg = NULL;
}
i = -1; /* set match flag */
break;
}
}
d->must_size++;
if (i != -1) {
/* no match found */
LOGVAL(LYE_INARG, LOGLINE(child), d->must[d->must_size - 1].expr, child->name);
LOGVAL(LYE_SPEC, 0, "Value does not match any must from the target.");
goto error;
}
} else { /* replace or add */
if (fill_yin_must(dev->target->module, child, &((*trg_must)[*trg_must_size]))) {
goto error;
}
(*trg_must_size)++;
}
} else if (!strcmp(child->name, "unique")) {
if (d->mod == LY_DEVIATE_DEL) {
GETVAL(value, child, "tag");
if (resolve_unique(dev->target, value, &d->unique[d->unique_size], LOGLINE(child))) {
goto error;
}
/* find unique structures to delete */
for (i = 0; i < list->unique_size; i++) {
if (list->unique[i].leafs_size != d->unique[d->unique_size].leafs_size) {
continue;
}
for (j = 0; j < d->unique[d->unique_size].leafs_size; j++) {
if (list->unique[i].leafs[j] != d->unique[d->unique_size].leafs[j]) {
break;
}
}
if (j == d->unique[d->unique_size].leafs_size) {
/* we have a match, free the unique structure ... */
free(list->unique[i].leafs);
/* ... and maintain the array */
list->unique_size--;
if (i != list->unique_size) {
list->unique[i].leafs_size = list->unique[list->unique_size].leafs_size;
list->unique[i].leafs = list->unique[list->unique_size].leafs;
}
if (!list->unique_size) {
free(list->unique);
list->unique = NULL;
} else {
list->unique[list->unique_size].leafs_size = 0;
list->unique[list->unique_size].leafs = NULL;
}
i = -1; /* set match flag */
break;
}
}
d->unique_size++;
if (i != -1) {
/* no match found */
LOGVAL(LYE_INARG, LOGLINE(child), lyxml_get_attr(child, "tag", NULL), child->name);
LOGVAL(LYE_SPEC, 0, "Value differs from the target being deleted.");
goto error;
}
} else { /* replace or add */
GETVAL(value, child, "tag");
if (resolve_unique(dev->target, value, &list->unique[list->unique_size], LOGLINE(child))) {
goto error;
}
list->unique_size++;
}
}
}
dev->deviate_size++;
}
return EXIT_SUCCESS;
error:
if (dev->deviate) {
for (i = 0; i < dev->deviate_size; i++) {
lydict_remove(module->ctx, dev->deviate[i].dflt);
lydict_remove(module->ctx, dev->deviate[i].units);
if (dev->deviate[i].mod == LY_DEVIATE_DEL) {
for (j = 0; j < dev->deviate[i].must_size; j++) {
ly_restr_free(module->ctx, &dev->deviate[i].must[j]);
}
free(dev->deviate[i].must);
for (j = 0; j < dev->deviate[i].unique_size; j++) {
free(dev->deviate[i].unique[j].leafs);
}
free(dev->deviate[i].unique);
}
}
free(dev->deviate);
}
return EXIT_FAILURE;
}
static int
fill_yin_augment(struct lys_module *module, struct lys_node *parent, struct lyxml_elem *yin, struct lys_node_augment *aug,
struct unres_schema *unres)
{
const char *value;
struct lyxml_elem *child, *next;
struct lys_node *mnode;
int c = 0;
GETVAL(value, yin, "target-node");
aug->target_name = lydict_insert(module->ctx, value, 0);
aug->parent = parent;
if (read_yin_common(module, NULL, (struct lys_node *)aug, yin, OPT_NACMEXT)) {
goto error;
}
LY_TREE_FOR_SAFE(yin->child, next, child) {
if (!child->ns || strcmp(child->ns->value, LY_NSYIN)) {
/* garbage */
lyxml_free_elem(module->ctx, child);
continue;
}
if (!strcmp(child->name, "if-feature")) {
c++;
continue;
} else if (!strcmp(child->name, "when")) {
if (aug->when) {
LOGVAL(LYE_TOOMANY, LOGLINE(child), child->name, yin->name);
goto error;
}
aug->when = read_yin_when(module, child);
if (!aug->when) {
lyxml_free_elem(module->ctx, child);
goto error;
}
add_unres_mnode(module, unres, aug->when, UNRES_WHEN, (struct lys_node *)aug, LOGLINE(child));
lyxml_free_elem(module->ctx, child);
continue;
/* check allowed data sub-statements */
} else if (!strcmp(child->name, "container")) {
mnode = read_yin_container(module, (struct lys_node *)aug, child, 0, unres);
} else if (!strcmp(child->name, "leaf-list")) {
mnode = read_yin_leaflist(module, (struct lys_node *)aug, child, 0, unres);
} else if (!strcmp(child->name, "leaf")) {
mnode = read_yin_leaf(module, (struct lys_node *)aug, child, 0, unres);
} else if (!strcmp(child->name, "list")) {
mnode = read_yin_list(module, (struct lys_node *)aug, child, 0, unres);
} else if (!strcmp(child->name, "uses")) {
mnode = read_yin_uses(module, (struct lys_node *)aug, child, 0, unres);
} else if (!strcmp(child->name, "choice")) {
mnode = read_yin_case(module, (struct lys_node *)aug, child, 0, unres);
} else if (!strcmp(child->name, "case")) {
mnode = read_yin_case(module, (struct lys_node *)aug, child, 0, unres);
} else if (!strcmp(child->name, "anyxml")) {
mnode = read_yin_anyxml(module, (struct lys_node *)aug, child, 0, unres);
} else {
LOGVAL(LYE_INSTMT, LOGLINE(child), child->name);
goto error;
}
if (!mnode) {
goto error;
}
/* check for mandatory nodes - if the target node is in another module
* the added nodes cannot be mandatory
*/
if ((parent->nodetype != LYS_USES) && check_mandatory(mnode)) {
LOGVAL(LYE_SPEC, LOGLINE(child), "When augmenting data in another module, mandatory statement is not allowed.");
goto error;
}
mnode = NULL;
lyxml_free_elem(module->ctx, child);
}
if (c) {
aug->features = calloc(c, sizeof *aug->features);
}
LY_TREE_FOR_SAFE(yin->child, next, child) {
if (!strcmp(child->name, "if-feature")) {
GETVAL(value, child, "name");
add_unres_str(module, unres, &aug->features[aug->features_size++], UNRES_IFFEAT, value, LOGLINE(child));
lyxml_free_elem(module->ctx, child);
}
}
/* aug->child points to the parsed nodes, they must now be
* connected to the tree and adjusted (if possible right now) */
add_unres_mnode(module, unres, aug, UNRES_AUGMENT, NULL, LOGLINE(yin));
return EXIT_SUCCESS;
error:
return EXIT_FAILURE;
}
static int
fill_yin_refine(struct lys_module *module, struct lyxml_elem *yin, struct lys_refine *rfn, struct lys_node_uses *uses,
struct unres_schema *unres)
{
struct lyxml_elem *sub, *next;
const char *value;
char *endptr;
int f_mand = 0, f_min = 0, f_max = 0;
int c_must = 0;
int r;
unsigned long int val;
if (read_yin_common(module, NULL, (struct lys_node *)rfn, yin, OPT_CONFIG)) {
goto error;
}
GETVAL(value, yin, "target-node");
rfn->target_name = lydict_insert(module->ctx, value, 0);
LY_TREE_FOR_SAFE(yin->child, next, sub) {
if (!sub->ns || strcmp(sub->ns->value, LY_NSYIN)) {
/* garbage */
lyxml_free_elem(module->ctx, sub);
continue;
}
/* limited applicability */
if (!strcmp(sub->name, "default")) {
/* leaf or choice */
if (rfn->mod.dflt) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
/* check possibility of statements combination */
if (rfn->target_type) {
rfn->target_type &= (LYS_LEAF | LYS_CHOICE);
if (!rfn->target_type) {
LOGVAL(LYE_SPEC, LOGLINE(sub), "invalid combination of refine substatements");
goto error;
}
} else {
rfn->target_type = LYS_LEAF | LYS_CHOICE;
}
GETVAL(value, sub, "value");
rfn->mod.dflt = lydict_insert(module->ctx, value, strlen(value));
} else if (!strcmp(sub->name, "mandatory")) {
/* leaf, choice or anyxml */
if (f_mand) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
/* just checking the flags in leaf is not sufficient, we would allow
* multiple mandatory statements with the "false" value
*/
f_mand = 1;
/* check possibility of statements combination */
if (rfn->target_type) {
rfn->target_type &= (LYS_LEAF | LYS_CHOICE | LYS_ANYXML);
if (!rfn->target_type) {
LOGVAL(LYE_SPEC, LOGLINE(sub), "invalid combination of refine substatements");
goto error;
}
} else {
rfn->target_type = LYS_LEAF | LYS_CHOICE | LYS_ANYXML;
}
GETVAL(value, sub, "value");
if (!strcmp(value, "true")) {
rfn->flags |= LYS_MAND_TRUE;
} else if (!strcmp(value, "false")) {
rfn->flags |= LYS_MAND_FALSE;
} else {
LOGVAL(LYE_INARG, LOGLINE(sub), value, sub->name);
goto error;
}
} else if (!strcmp(sub->name, "min-elements")) {
/* list or leaf-list */
if (f_min) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
f_min = 1;
/* check possibility of statements combination */
if (rfn->target_type) {
rfn->target_type &= (LYS_LIST | LYS_LEAFLIST);
if (!rfn->target_type) {
LOGVAL(LYE_SPEC, LOGLINE(sub), "invalid combination of refine substatements");
goto error;
}
} else {
rfn->target_type = LYS_LIST | LYS_LEAFLIST;
}
GETVAL(value, sub, "value");
while (isspace(value[0])) {
value++;
}
/* convert it to uint32_t */
errno = 0;
endptr = NULL;
val = strtoul(value, &endptr, 10);
if (*endptr || value[0] == '-' || errno || val > UINT32_MAX) {
LOGVAL(LYE_INARG, LOGLINE(sub), value, sub->name);
goto error;
}
rfn->mod.list.min = (uint32_t) val;
/* magic - bit 3 in flags means min set */
rfn->flags |= 0x04;
} else if (!strcmp(sub->name, "max-elements")) {
/* list or leaf-list */
if (f_max) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
f_max = 1;
/* check possibility of statements combination */
if (rfn->target_type) {
rfn->target_type &= (LYS_LIST | LYS_LEAFLIST);
if (!rfn->target_type) {
LOGVAL(LYE_SPEC, LOGLINE(sub), "invalid combination of refine substatements");
goto error;
}
} else {
rfn->target_type = LYS_LIST | LYS_LEAFLIST;
}
GETVAL(value, sub, "value");
while (isspace(value[0])) {
value++;
}
/* convert it to uint32_t */
errno = 0;
endptr = NULL;
val = strtoul(value, &endptr, 10);
if (*endptr || value[0] == '-' || errno || val == 0 || val > UINT32_MAX) {
LOGVAL(LYE_INARG, LOGLINE(sub), value, sub->name);
goto error;
}
rfn->mod.list.max = (uint32_t) val;
/* magic - bit 4 in flags means min set */
rfn->flags |= 0x08;
} else if (!strcmp(sub->name, "presence")) {
/* container */
if (rfn->mod.presence) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
/* check possibility of statements combination */
if (rfn->target_type) {
rfn->target_type &= LYS_CONTAINER;
if (!rfn->target_type) {
LOGVAL(LYE_SPEC, LOGLINE(sub), "invalid combination of refine substatements");
goto error;
}
} else {
rfn->target_type = LYS_CONTAINER;
}
GETVAL(value, sub, "value");
rfn->mod.presence = lydict_insert(module->ctx, value, strlen(value));
} else if (!strcmp(sub->name, "must")) {
/* leaf-list, list, container or anyxml */
/* check possibility of statements combination */
if (rfn->target_type) {
rfn->target_type &= (LYS_LIST | LYS_LEAFLIST | LYS_CONTAINER | LYS_ANYXML);
if (!rfn->target_type) {
LOGVAL(LYE_SPEC, LOGLINE(sub), "invalid combination of refine substatements");
goto error;
}
} else {
rfn->target_type = LYS_LIST | LYS_LEAFLIST | LYS_CONTAINER | LYS_ANYXML;
}
c_must++;
continue;
} else {
LOGVAL(LYE_INSTMT, LOGLINE(sub), sub->name);
goto error;
}
lyxml_free_elem(module->ctx, sub);
}
/* process nodes with cardinality of 0..n */
if (c_must) {
rfn->must = calloc(c_must, sizeof *rfn->must);
}
LY_TREE_FOR(yin->child, sub) {
r = fill_yin_must(module, sub, &rfn->must[rfn->must_size++]);
if (r) {
goto error;
}
add_unres_mnode(module, unres, &rfn->must[rfn->must_size-1], UNRES_MUST, (struct lys_node *)uses,
LOGLINE(sub));
}
return EXIT_SUCCESS;
error:
return EXIT_FAILURE;
}
static int
fill_yin_import(struct lys_module *module, struct lyxml_elem *yin, struct lys_import *imp)
{
struct lyxml_elem *child;
const char *value;
LY_TREE_FOR(yin->child, child) {
if (!child->ns || strcmp(child->ns->value, LY_NSYIN)) {
/* garbage */
continue;
}
if (!strcmp(child->name, "prefix")) {
GETVAL(value, child, "value");
if (check_identifier(value, LY_IDENT_PREFIX, LOGLINE(child), module, NULL)) {
goto error;
}
imp->prefix = lydict_insert(module->ctx, value, strlen(value));
} else if (!strcmp(child->name, "revision-date")) {
if (imp->rev[0]) {
LOGVAL(LYE_TOOMANY, LOGLINE(child), "revision-date", yin->name);
goto error;
}
GETVAL(value, child, "date");
if (check_date(value, LOGLINE(child))) {
goto error;
}
memcpy(imp->rev, value, LY_REV_SIZE - 1);
} else {
LOGVAL(LYE_INSTMT, LOGLINE(child), child->name);
goto error;
}
}
/* check mandatory information */
if (!imp->prefix) {
LOGVAL(LYE_MISSSTMT2, LOGLINE(yin), "prefix", yin->name);
goto error;
}
GETVAL(value, yin, "module");
imp->module = ly_ctx_get_module(module->ctx, value, imp->rev[0] ? imp->rev : NULL);
if (!imp->module) {
imp->module = lyp_search_file(module->ctx, NULL, value, imp->rev[0] ? imp->rev : NULL);
if (!imp->module) {
LOGERR(LY_EVALID, "Data model \"%s\" not found (search path is \"%s\")", value, module->ctx->models.search_path);
LOGERR(LY_EVALID, "Importing \"%s\" module into \"%s\" failed.", value, module->name);
LOGVAL(LYE_INARG, LOGLINE(yin), value, yin->name);
goto error;
}
}
return EXIT_SUCCESS;
error:
return EXIT_FAILURE;
}
static int
fill_yin_include(struct lys_module *module, struct lyxml_elem *yin, struct lys_include *inc)
{
struct lyxml_elem *child;
const char *value;
LY_TREE_FOR(yin->child, child) {
if (!child->ns || strcmp(child->ns->value, LY_NSYIN)) {
/* garbage */
continue;
}
if (!strcmp(child->name, "revision-date")) {
if (inc->rev[0]) {
LOGVAL(LYE_TOOMANY, LOGLINE(child), "revision-date", yin->name);
goto error;
}
GETVAL(value, child, "date");
if (check_date(value, LOGLINE(child))) {
goto error;
}
memcpy(inc->rev, value, LY_REV_SIZE - 1);
} else {
LOGVAL(LYE_INSTMT, LOGLINE(child), child->name);
goto error;
}
}
GETVAL(value, yin, "module");
inc->submodule = ly_ctx_get_submodule(module, value, inc->rev[0] ? inc->rev : NULL);
if (!inc->submodule) {
inc->submodule = (struct lys_submodule *) lyp_search_file(module->ctx, module, value, inc->rev[0] ? inc->rev : NULL);
if (!inc->submodule) {
LOGERR(LY_EVALID, "Data model \"%s\" not found (search path is \"%s\")", value, module->ctx->models.search_path);
LOGERR(LY_EVALID, "Including \"%s\" module into \"%s\" failed.", value, module->name);
LOGVAL(LYE_INARG, LOGLINE(yin), value, yin->name);
goto error;
}
}
/* check that belongs-to corresponds */
if (module->type) {
module = ((struct lys_submodule *)module)->belongsto;
}
if (inc->submodule->belongsto != module) {
LOGVAL(LYE_INARG, LOGLINE(yin), value, yin->name);
LOGVAL(LYE_SPEC, 0, "The included module does not belongs-to the \"%s\" module", module->name);
goto error;
}
return EXIT_SUCCESS;
error:
return EXIT_FAILURE;
}
/*
* Covers:
* description, reference, status, optionaly config
*
*/
static int
read_yin_common(struct lys_module *module, struct lys_node *parent,
struct lys_node *mnode, struct lyxml_elem *xmlnode, int opt)
{
const char *value;
struct lyxml_elem *sub, *next;
struct ly_ctx *const ctx = module->ctx;
if (opt & OPT_MODULE) {
mnode->module = module;
}
if (opt & OPT_IDENT) {
GETVAL(value, xmlnode, "name");
if (check_identifier(value, LY_IDENT_NAME, LOGLINE(xmlnode), NULL, NULL)) {
goto error;
}
mnode->name = lydict_insert(ctx, value, strlen(value));
}
/* inherit NACM flags */
if ((opt & OPT_NACMEXT) && parent) {
mnode->nacm = parent->nacm;
}
/* process local parameters */
LY_TREE_FOR_SAFE(xmlnode->child, next, sub) {
if (!sub->ns) {
/* garbage */
lyxml_free_elem(ctx, sub);
continue;
}
if (strcmp(sub->ns->value, LY_NSYIN)) {
/* NACM extensions */
if ((opt & OPT_NACMEXT) && !strcmp(sub->ns->value, LY_NSNACM)) {
if (!strcmp(sub->name, "default-deny-write")) {
mnode->nacm |= LYS_NACM_DENYW;
} else if (!strcmp(sub->name, "default-deny-all")) {
mnode->nacm |= LYS_NACM_DENYA;
} else {
LOGVAL(LYE_INSTMT, LOGLINE(sub), sub->name);
goto error;
}
}
/* else garbage */
lyxml_free_elem(ctx, sub);
continue;
}
if (!strcmp(sub->name, "description")) {
if (mnode->dsc) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, xmlnode->name);
goto error;
}
mnode->dsc = read_yin_subnode(ctx, sub, "text");
if (!mnode->dsc) {
goto error;
}
} else if (!strcmp(sub->name, "reference")) {
if (mnode->ref) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, xmlnode->name);
goto error;
}
mnode->ref = read_yin_subnode(ctx, sub, "text");
if (!mnode->ref) {
goto error;
}
} else if (!strcmp(sub->name, "status")) {
if (mnode->flags & LYS_STATUS_MASK) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, xmlnode->name);
goto error;
}
GETVAL(value, sub, "value");
if (!strcmp(value, "current")) {
mnode->flags |= LYS_STATUS_CURR;
} else if (!strcmp(value, "deprecated")) {
mnode->flags |= LYS_STATUS_DEPRC;
} else if (!strcmp(value, "obsolete")) {
mnode->flags |= LYS_STATUS_OBSLT;
} else {
LOGVAL(LYE_INARG, LOGLINE(sub), value, sub->name);
goto error;
}
} else if ((opt & OPT_CONFIG) && !strcmp(sub->name, "config")) {
if (mnode->flags & LYS_CONFIG_MASK) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, xmlnode->name);
goto error;
}
GETVAL(value, sub, "value");
if (!strcmp(value, "false")) {
mnode->flags |= LYS_CONFIG_R;
} else if (!strcmp(value, "true")) {
mnode->flags |= LYS_CONFIG_W;
} else {
LOGVAL(LYE_INARG, LOGLINE(sub), value, sub->name);
goto error;
}
} else {
/* skip the lyxml_free_elem */
continue;
}
lyxml_free_elem(ctx, sub);
}
if ((opt & OPT_INHERIT) && !(mnode->flags & LYS_CONFIG_MASK)) {
/* get config flag from parent */
if (parent) {
mnode->flags |= parent->flags & LYS_CONFIG_MASK;
} else {
/* default config is true */
mnode->flags |= LYS_CONFIG_W;
}
}
return EXIT_SUCCESS;
error:
return EXIT_FAILURE;
}
static struct lys_when *
read_yin_when(struct lys_module *module, struct lyxml_elem *yin)
{
struct lys_when *retval = NULL;
struct lyxml_elem *child;
const char *value;
retval = calloc(1, sizeof *retval);
GETVAL(value, yin, "condition");
retval->cond = lydict_insert(module->ctx, value, 0);
LY_TREE_FOR(yin->child, child) {
if (!child->ns || strcmp(child->ns->value, LY_NSYIN)) {
/* garbage */
continue;
}
if (!strcmp(child->name, "description")) {
if (retval->dsc) {
LOGVAL(LYE_TOOMANY, LOGLINE(child), child->name, yin->name);
goto error;
}
retval->dsc = read_yin_subnode(module->ctx, child, "text");
if (!retval->dsc) {
goto error;
}
} else if (!strcmp(child->name, "reference")) {
if (retval->ref) {
LOGVAL(LYE_TOOMANY, LOGLINE(child), child->name, yin->name);
goto error;
}
retval->ref = read_yin_subnode(module->ctx, child, "text");
if (!retval->ref) {
goto error;
}
} else {
LOGVAL(LYE_INSTMT, LOGLINE(child), child->name);
goto error;
}
}
return retval;
error:
ly_mnode_free((struct lys_node *)retval);
return NULL;
}
/* additional check in case statement - the child must be unique across
* all other case names and its data children
*/
static int
check_branch_id(struct lys_node *parent, struct lys_node *new, struct lys_node *excl, int line)
{
struct lys_node *mnode, *submnode;
if (new->nodetype == LYS_CHOICE) {
/* we have nested choice in case, so we need recursion */
LY_TREE_FOR(new->child, mnode) {
if (mnode->nodetype == LYS_CASE) {
LY_TREE_FOR(mnode->child, submnode) {
if (check_branch_id(parent, submnode, new, line)) {
return EXIT_FAILURE;
}
}
} else if (check_branch_id(parent, mnode, new, line)) {
return EXIT_FAILURE;
}
}
} else {
LY_TREE_FOR(parent->child, mnode) {
if (mnode == excl) {
continue;
}
if (!strcmp(new->name, mnode->name)) {
LOGVAL(LYE_INID, line, new->name, "duplicated identifier within a choice's cases");
return EXIT_FAILURE;
}
if (mnode->nodetype == LYS_CASE) {
LY_TREE_FOR(mnode->child, submnode) {
if (!strcmp(new->name, submnode->name)) {
LOGVAL(LYE_INID, line, new->name, "duplicated identifier within a choice's cases");
return EXIT_FAILURE;
}
}
}
}
}
return EXIT_SUCCESS;
}
static struct lys_node *
read_yin_case(struct lys_module *module, struct lys_node *parent, struct lyxml_elem *yin, int resolve,
struct unres_schema *unres)
{
struct lyxml_elem *sub, *next;
struct lys_node_case *mcase;
struct lys_node *retval, *mnode = NULL;
int c_ftrs = 0;
const char *value;
mcase = calloc(1, sizeof *mcase);
mcase->nodetype = LYS_CASE;
mcase->prev = (struct lys_node *)mcase;
retval = (struct lys_node *)mcase;
if (read_yin_common(module, parent, retval, yin, OPT_IDENT | OPT_MODULE | OPT_INHERIT | OPT_NACMEXT)) {
goto error;
}
/* process choice's specific children */
LY_TREE_FOR_SAFE(yin->child, next, sub) {
if (!sub->ns || strcmp(sub->ns->value, LY_NSYIN)) {
/* garbage */
lyxml_free_elem(module->ctx, sub);
continue;
}
if (!strcmp(sub->name, "container")) {
mnode = read_yin_container(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "leaf-list")) {
mnode = read_yin_leaflist(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "leaf")) {
mnode = read_yin_leaf(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "list")) {
mnode = read_yin_list(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "uses")) {
mnode = read_yin_uses(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "choice")) {
mnode = read_yin_choice(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "anyxml")) {
mnode = read_yin_anyxml(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "if-feature")) {
c_ftrs++;
/* skip lyxml_free_elem() at the end of the loop, sub is processed later */
continue;
} else if (!strcmp(sub->name, "when")) {
if (mcase->when) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
mcase->when = read_yin_when(module, sub);
if (!mcase->when) {
goto error;
}
add_unres_mnode(module, unres, mcase->when, UNRES_WHEN, retval, LOGLINE(sub));
} else {
LOGVAL(LYE_INSTMT, LOGLINE(sub), sub->name);
goto error;
}
if (!mnode) {
goto error;
} else if (check_branch_id(parent, mnode, mnode, LOGLINE(sub))) {
goto error;
}
mnode = NULL;
lyxml_free_elem(module->ctx, sub);
}
if (c_ftrs) {
mcase->features = calloc(c_ftrs, sizeof *mcase->features);
}
LY_TREE_FOR(yin->child, sub) {
GETVAL(value, sub, "name");
add_unres_str(module, unres, &mcase->features[mcase->features_size++], UNRES_IFFEAT, value, LOGLINE(sub));
}
/* insert the node into the schema tree */
if (ly_mnode_addchild(parent, retval)) {
goto error;
}
return retval;
error:
ly_mnode_free(retval);
return NULL;
}
static struct lys_node *
read_yin_choice(struct lys_module *module,
struct lys_node *parent, struct lyxml_elem *yin, int resolve, struct unres_schema *unres)
{
struct lyxml_elem *sub, *next;
struct ly_ctx *const ctx = module->ctx;
struct lys_node *retval, *mnode = NULL;
struct lys_node_choice *choice;
const char *value, *dflt_str = NULL;
int f_mand = 0, c_ftrs = 0;
choice = calloc(1, sizeof *choice);
choice->nodetype = LYS_CHOICE;
choice->prev = (struct lys_node *)choice;
retval = (struct lys_node *)choice;
if (read_yin_common(module, parent, retval, yin, OPT_IDENT | OPT_MODULE | OPT_CONFIG | OPT_NACMEXT
| (resolve ? OPT_INHERIT : 0))) {
goto error;
}
/* process choice's specific children */
LY_TREE_FOR_SAFE(yin->child, next, sub) {
if (!sub->ns || strcmp(sub->ns->value, LY_NSYIN)) {
/* garbage */
lyxml_free_elem(module->ctx, sub);
continue;
}
if (!strcmp(sub->name, "container")) {
if (!(mnode = read_yin_container(module, retval, sub, resolve, unres))) {
goto error;
}
} else if (!strcmp(sub->name, "leaf-list")) {
if (!(mnode = read_yin_leaflist(module, retval, sub, resolve, unres))) {
goto error;
}
} else if (!strcmp(sub->name, "leaf")) {
if (!(mnode = read_yin_leaf(module, retval, sub, resolve, unres))) {
goto error;
}
} else if (!strcmp(sub->name, "list")) {
if (!(mnode = read_yin_list(module, retval, sub, resolve, unres))) {
goto error;
}
} else if (!strcmp(sub->name, "case")) {
if (!(mnode = read_yin_case(module, retval, sub, resolve, unres))) {
goto error;
}
} else if (!strcmp(sub->name, "anyxml")) {
if (!(mnode = read_yin_anyxml(module, retval, sub, resolve, unres))) {
goto error;
}
} else if (!strcmp(sub->name, "default")) {
if (dflt_str) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
GETVAL(dflt_str, sub, "value");
} else if (!strcmp(sub->name, "mandatory")) {
if (f_mand) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
/* just checking the flags in leaf is not sufficient, we would allow
* multiple mandatory statements with the "false" value
*/
f_mand = 1;
GETVAL(value, sub, "value");
if (!strcmp(value, "true")) {
choice->flags |= LYS_MAND_TRUE;
} else if (!strcmp(value, "false")) {
choice->flags |= LYS_MAND_FALSE;
} else {
LOGVAL(LYE_INARG, LOGLINE(sub), value, sub->name);
goto error;
} /* else false is the default value, so we can ignore it */
} else if (!strcmp(sub->name, "when")) {
if (choice->when) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
choice->when = read_yin_when(module, sub);
if (!choice->when) {
goto error;
}
add_unres_mnode(module, unres, choice->when, UNRES_WHEN, retval, LOGLINE(sub));
} else if (!strcmp(sub->name, "if-feature")) {
c_ftrs++;
/* skip lyxml_free_elem() at the end of the loop, the sub node is processed later */
continue;
} else {
LOGVAL(LYE_INSTMT, LOGLINE(sub), sub->name);
goto error;
}
if (mnode && check_branch_id(retval, mnode, mnode, LOGLINE(sub))) {
goto error;
}
mnode = NULL;
lyxml_free_elem(ctx, sub);
}
if (c_ftrs) {
choice->features = calloc(c_ftrs, sizeof *choice->features);
}
LY_TREE_FOR(yin->child, sub) {
GETVAL(value, sub, "name");
add_unres_str(module, unres, &choice->features[choice->features_size++], UNRES_IFFEAT, value, LOGLINE(sub));
}
/* check - default is prohibited in combination with mandatory */
if (dflt_str && (choice->flags & LYS_MAND_TRUE)) {
LOGVAL(LYE_SPEC, LOGLINE(yin),
"The \"default\" statement MUST NOT be present on choices where \"mandatory\" is true.");
goto error;
}
/* link default with the case */
if (dflt_str) {
add_unres_str(module, unres, choice, UNRES_CHOICE_DFLT, dflt_str, LOGLINE(yin));
}
/* insert the node into the schema tree */
if (parent && ly_mnode_addchild(parent, retval)) {
goto error;
}
return retval;
error:
ly_mnode_free(retval);
return NULL;
}
static struct lys_node *
read_yin_anyxml(struct lys_module *module, struct lys_node *parent, struct lyxml_elem *yin, int resolve,
struct unres_schema *unres)
{
struct lys_node *retval;
struct lys_node_leaf *anyxml;
struct lyxml_elem *sub, *next;
const char *value;
int r;
int f_mand = 0;
int c_must = 0, c_ftrs = 0;
anyxml = calloc(1, sizeof *anyxml);
anyxml->nodetype = LYS_ANYXML;
anyxml->prev = (struct lys_node *)anyxml;
retval = (struct lys_node *)anyxml;
if (read_yin_common(module, parent, retval, yin, OPT_IDENT | OPT_MODULE | OPT_CONFIG | OPT_NACMEXT
| (resolve ? OPT_INHERIT : 0))) {
goto error;
}
LY_TREE_FOR_SAFE(yin->child, next, sub) {
if (!sub->ns || strcmp(sub->ns->value, LY_NSYIN)) {
/* garbage */
lyxml_free_elem(module->ctx, sub);
continue;
}
if (!strcmp(sub->name, "mandatory")) {
if (f_mand) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
/* just checking the flags in leaf is not sufficient, we would allow
* multiple mandatory statements with the "false" value
*/
f_mand = 1;
GETVAL(value, sub, "value");
if (!strcmp(value, "true")) {
anyxml->flags |= LYS_MAND_TRUE;
} else if (!strcmp(value, "false")) {
anyxml->flags |= LYS_MAND_FALSE;
} else {
LOGVAL(LYE_INARG, LOGLINE(sub), value, sub->name);
goto error;
}
/* else false is the default value, so we can ignore it */
lyxml_free_elem(module->ctx, sub);
} else if (!strcmp(sub->name, "when")) {
if (anyxml->when) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
anyxml->when = read_yin_when(module, sub);
if (!anyxml->when) {
lyxml_free_elem(module->ctx, sub);
goto error;
}
add_unres_mnode(module, unres, anyxml->when, UNRES_WHEN, retval, LOGLINE(sub));
lyxml_free_elem(module->ctx, sub);
} else if (!strcmp(sub->name, "must")) {
c_must++;
} else if (!strcmp(sub->name, "if-feature")) {
c_ftrs++;
} else {
LOGVAL(LYE_INSTMT, LOGLINE(sub), sub->name);
goto error;
}
}
/* middle part - process nodes with cardinality of 0..n */
if (c_must) {
anyxml->must = calloc(c_must, sizeof *anyxml->must);
}
if (c_ftrs) {
anyxml->features = calloc(c_ftrs, sizeof *anyxml->features);
}
LY_TREE_FOR(yin->child, sub) {
if (!strcmp(sub->name, "must")) {
r = fill_yin_must(module, sub, &anyxml->must[anyxml->must_size++]);
if (r) {
goto error;
}
add_unres_mnode(module, unres, &anyxml->must[anyxml->must_size-1], UNRES_MUST, retval, LOGLINE(sub));
} else if (!strcmp(sub->name, "if-feature")) {
GETVAL(value, sub, "name");
add_unres_str(module, unres, &anyxml->features[anyxml->features_size++], UNRES_IFFEAT, value, LOGLINE(sub));
}
}
if (parent && ly_mnode_addchild(parent, retval)) {
goto error;
}
return retval;
error:
ly_mnode_free(retval);
return NULL;
}
static struct lys_node *
read_yin_leaf(struct lys_module *module, struct lys_node *parent, struct lyxml_elem *yin, int resolve,
struct unres_schema *unres)
{
struct lys_node *retval;
struct lys_node_leaf *leaf;
struct lyxml_elem *sub, *next;
const char *value;
int r, has_type = 0, dflt_line;
int c_must = 0, c_ftrs = 0, f_mand = 0;
leaf = calloc(1, sizeof *leaf);
leaf->nodetype = LYS_LEAF;
leaf->prev = (struct lys_node *)leaf;
retval = (struct lys_node *)leaf;
if (read_yin_common(module, parent, retval, yin, OPT_IDENT | OPT_MODULE | OPT_CONFIG | OPT_NACMEXT
| (resolve ? OPT_INHERIT : 0))) {
goto error;
}
LY_TREE_FOR_SAFE(yin->child, next, sub) {
if (!sub->ns || strcmp(sub->ns->value, LY_NSYIN)) {
/* garbage */
lyxml_free_elem(module->ctx, sub);
continue;
}
if (!strcmp(sub->name, "type")) {
if (leaf->type.der || has_type) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
if (fill_yin_type(module, parent, sub, &leaf->type, unres)) {
goto error;
}
has_type = 1;
} else if (!strcmp(sub->name, "default")) {
if (leaf->dflt) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
GETVAL(value, sub, "value");
leaf->dflt = lydict_insert(module->ctx, value, strlen(value));
dflt_line = LOGLINE(sub);
} else if (!strcmp(sub->name, "units")) {
if (leaf->units) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
GETVAL(value, sub, "name");
leaf->units = lydict_insert(module->ctx, value, strlen(value));
} else if (!strcmp(sub->name, "mandatory")) {
if (f_mand) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
/* just checking the flags in leaf is not sufficient, we would allow
* multiple mandatory statements with the "false" value
*/
f_mand = 1;
GETVAL(value, sub, "value");
if (!strcmp(value, "true")) {
leaf->flags |= LYS_MAND_TRUE;
} else if (!strcmp(value, "false")) {
leaf->flags |= LYS_MAND_FALSE;
} else {
LOGVAL(LYE_INARG, LOGLINE(sub), value, sub->name);
goto error;
} /* else false is the default value, so we can ignore it */
} else if (!strcmp(sub->name, "when")) {
if (leaf->when) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
leaf->when = read_yin_when(module, sub);
if (!leaf->when) {
goto error;
}
add_unres_mnode(module, unres, leaf->when, UNRES_WHEN, retval, LOGLINE(sub));
} else if (!strcmp(sub->name, "must")) {
c_must++;
continue;
} else if (!strcmp(sub->name, "if-feature")) {
c_ftrs++;
continue;
} else {
LOGVAL(LYE_INSTMT, LOGLINE(sub), sub->name);
goto error;
}
lyxml_free_elem(module->ctx, sub);
}
/* check mandatory parameters */
if (!has_type) {
LOGVAL(LYE_MISSSTMT2, LOGLINE(yin), "type", yin->name);
goto error;
}
if (leaf->dflt) {
add_unres_str(module, unres, &leaf->type, UNRES_TYPE_DFLT, leaf->dflt, dflt_line);
}
/* middle part - process nodes with cardinality of 0..n */
if (c_must) {
leaf->must = calloc(c_must, sizeof *leaf->must);
}
if (c_ftrs) {
leaf->features = calloc(c_ftrs, sizeof *leaf->features);
}
LY_TREE_FOR(yin->child, sub) {
if (!strcmp(sub->name, "must")) {
r = fill_yin_must(module, sub, &leaf->must[leaf->must_size++]);
if (r) {
goto error;
}
add_unres_mnode(module, unres, &leaf->must[leaf->must_size-1], UNRES_MUST, retval, LOGLINE(sub));
} else if (!strcmp(sub->name, "if-feature")) {
GETVAL(value, sub, "name");
add_unres_str(module, unres, &leaf->features[leaf->features_size++], UNRES_IFFEAT, value, LOGLINE(sub));
}
}
if (parent && ly_mnode_addchild(parent, retval)) {
goto error;
}
return retval;
error:
ly_mnode_free(retval);
return NULL;
}
static struct lys_node *
read_yin_leaflist(struct lys_module *module, struct lys_node *parent, struct lyxml_elem *yin, int resolve,
struct unres_schema *unres)
{
struct lys_node *retval;
struct lys_node_leaflist *llist;
struct lyxml_elem *sub, *next;
const char *value;
char *endptr;
unsigned long val;
int r, has_type = 0;
int c_must = 0, c_ftrs = 0;
int f_ordr = 0, f_min = 0, f_max = 0;
llist = calloc(1, sizeof *llist);
llist->nodetype = LYS_LEAFLIST;
llist->prev = (struct lys_node *)llist;
retval = (struct lys_node *)llist;
if (read_yin_common(module, parent, retval, yin, OPT_IDENT | OPT_MODULE | OPT_CONFIG | OPT_NACMEXT
| (resolve ? OPT_INHERIT : 0))) {
goto error;
}
LY_TREE_FOR_SAFE(yin->child, next, sub) {
if (!sub->ns || strcmp(sub->ns->value, LY_NSYIN)) {
/* garbage */
lyxml_free_elem(module->ctx, sub);
continue;
}
if (!strcmp(sub->name, "type")) {
if (llist->type.der || has_type) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
if (fill_yin_type(module, parent, sub, &llist->type, unres)) {
goto error;
}
has_type = 1;
} else if (!strcmp(sub->name, "units")) {
if (llist->units) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
GETVAL(value, sub, "name");
llist->units = lydict_insert(module->ctx, value, strlen(value));
} else if (!strcmp(sub->name, "ordered-by")) {
if (f_ordr) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
/* just checking the flags in llist is not sufficient, we would
* allow multiple ordered-by statements with the "system" value
*/
f_ordr = 1;
if (llist->flags & LYS_CONFIG_R) {
/* RFC 6020, 7.7.5 - ignore ordering when the list represents
* state data
*/
lyxml_free_elem(module->ctx, sub);
continue;
}
GETVAL(value, sub, "value");
if (!strcmp(value, "user")) {
llist->flags |= LYS_USERORDERED;
} else if (strcmp(value, "system")) {
LOGVAL(LYE_INARG, LOGLINE(sub), value, sub->name);
goto error;
} /* else system is the default value, so we can ignore it */
} else if (!strcmp(sub->name, "must")) {
c_must++;
continue;
} else if (!strcmp(sub->name, "if-feature")) {
c_ftrs++;
continue;
} else if (!strcmp(sub->name, "min-elements")) {
if (f_min) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
f_min = 1;
GETVAL(value, sub, "value");
while (isspace(value[0])) {
value++;
}
/* convert it to uint32_t */
errno = 0;
endptr = NULL;
val = strtoul(value, &endptr, 10);
if (*endptr || value[0] == '-' || errno || val > UINT32_MAX) {
LOGVAL(LYE_INARG, LOGLINE(sub), value, sub->name);
goto error;
}
llist->min = (uint32_t) val;
} else if (!strcmp(sub->name, "max-elements")) {
if (f_max) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
f_max = 1;
GETVAL(value, sub, "value");
while (isspace(value[0])) {
value++;
}
/* convert it to uint32_t */
errno = 0;
endptr = NULL;
val = strtoul(value, &endptr, 10);
if (*endptr || value[0] == '-' || errno || val == 0 || val > UINT32_MAX) {
LOGVAL(LYE_INARG, LOGLINE(sub), value, sub->name);
goto error;
}
llist->max = (uint32_t) val;
} else if (!strcmp(sub->name, "when")) {
if (llist->when) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
llist->when = read_yin_when(module, sub);
if (!llist->when) {
goto error;
}
add_unres_mnode(module, unres, llist->when, UNRES_WHEN, retval, LOGLINE(sub));
} else {
LOGVAL(LYE_INSTMT, LOGLINE(sub), sub->name);
goto error;
}
lyxml_free_elem(module->ctx, sub);
}
/* check constraints */
if (!has_type) {
LOGVAL(LYE_MISSSTMT2, LOGLINE(yin), "type", yin->name);
goto error;
}
if (llist->max && llist->min > llist->max) {
LOGVAL(LYE_SPEC, LOGLINE(yin), "\"min-elements\" is bigger than \"max-elements\".");
goto error;
}
/* middle part - process nodes with cardinality of 0..n */
if (c_must) {
llist->must = calloc(c_must, sizeof *llist->must);
}
if (c_ftrs) {
llist->features = calloc(c_ftrs, sizeof *llist->features);
}
LY_TREE_FOR(yin->child, sub) {
if (!strcmp(sub->name, "must")) {
r = fill_yin_must(module, sub, &llist->must[llist->must_size++]);
if (r) {
goto error;
}
add_unres_mnode(module, unres, &llist->must[llist->must_size-1], UNRES_MUST, retval, LOGLINE(sub));
} else if (!strcmp(sub->name, "if-feature")) {
GETVAL(value, sub, "name");
add_unres_str(module, unres, &llist->features[llist->features_size++], UNRES_IFFEAT, value, LOGLINE(sub));
}
}
if (parent && ly_mnode_addchild(parent, retval)) {
goto error;
}
return retval;
error:
ly_mnode_free(retval);
return NULL;
}
static struct lys_node *
read_yin_list(struct lys_module *module, struct lys_node *parent, struct lyxml_elem *yin, int resolve,
struct unres_schema *unres)
{
struct lys_node *retval, *mnode;
struct lys_node_list *list;
struct lyxml_elem *sub, *next, root, uniq;
int r, key_line;
int c_tpdf = 0, c_must = 0, c_uniq = 0, c_ftrs = 0;
int f_ordr = 0, f_max = 0, f_min = 0;
const char *key_str = NULL, *value;
char *auxs;
unsigned long val;
/* init */
memset(&root, 0, sizeof root);
memset(&uniq, 0, sizeof uniq);
list = calloc(1, sizeof *list);
list->nodetype = LYS_LIST;
list->prev = (struct lys_node *)list;
retval = (struct lys_node *)list;
if (read_yin_common(module, parent, retval, yin, OPT_IDENT | OPT_MODULE | OPT_CONFIG | OPT_NACMEXT
| (resolve ? OPT_INHERIT : 0))) {
goto error;
}
/* process list's specific children */
LY_TREE_FOR_SAFE(yin->child, next, sub) {
if (!sub->ns || strcmp(sub->ns->value, LY_NSYIN)) {
/* garbage */
lyxml_free_elem(module->ctx, sub);
continue;
}
/* data statements */
if (!strcmp(sub->name, "container") ||
!strcmp(sub->name, "leaf-list") ||
!strcmp(sub->name, "leaf") ||
!strcmp(sub->name, "list") ||
!strcmp(sub->name, "choice") ||
!strcmp(sub->name, "uses") ||
!strcmp(sub->name, "grouping") ||
!strcmp(sub->name, "anyxml")) {
lyxml_unlink_elem(sub);
lyxml_add_child(&root, sub);
/* array counters */
} else if (!strcmp(sub->name, "key")) {
/* check cardinality 0..1 */
if (list->keys_size) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, list->name);
goto error;
}
/* count the number of keys */
GETVAL(value, sub, "value");
key_str = value;
key_line = LOGLINE(sub);
while ((value = strpbrk(value, " \t\n"))) {
list->keys_size++;
while (isspace(*value)) {
value++;
}
}
list->keys_size++;
list->keys = calloc(list->keys_size, sizeof *list->keys);
} else if (!strcmp(sub->name, "unique")) {
c_uniq++;
lyxml_unlink_elem(sub);
lyxml_add_child(&uniq, sub);
} else if (!strcmp(sub->name, "typedef")) {
c_tpdf++;
} else if (!strcmp(sub->name, "must")) {
c_must++;
} else if (!strcmp(sub->name, "if-feature")) {
c_ftrs++;
/* optional stetments */
} else if (!strcmp(sub->name, "ordered-by")) {
if (f_ordr) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
/* just checking the flags in llist is not sufficient, we would
* allow multiple ordered-by statements with the "system" value
*/
f_ordr = 1;
if (list->flags & LYS_CONFIG_R) {
/* RFC 6020, 7.7.5 - ignore ordering when the list represents
* state data
*/
lyxml_free_elem(module->ctx, sub);
continue;
}
GETVAL(value, sub, "value");
if (!strcmp(value, "user")) {
list->flags |= LYS_USERORDERED;
} else if (strcmp(value, "system")) {
LOGVAL(LYE_INARG, LOGLINE(sub), value, sub->name);
goto error;
}
/* else system is the default value, so we can ignore it */
lyxml_free_elem(module->ctx, sub);
} else if (!strcmp(sub->name, "min-elements")) {
if (f_min) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
f_min = 1;
GETVAL(value, sub, "value");
while (isspace(value[0])) {
value++;
}
/* convert it to uint32_t */
errno = 0;
auxs = NULL;
val = strtoul(value, &auxs, 10);
if (*auxs || value[0] == '-' || errno || val > UINT32_MAX) {
LOGVAL(LYE_INARG, LOGLINE(sub), value, sub->name);
goto error;
}
list->min = (uint32_t) val;
lyxml_free_elem(module->ctx, sub);
} else if (!strcmp(sub->name, "max-elements")) {
if (f_max) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
f_max = 1;
GETVAL(value, sub, "value");
while (isspace(value[0])) {
value++;
}
/* convert it to uint32_t */
errno = 0;
auxs = NULL;
val = strtoul(value, &auxs, 10);
if (*auxs || value[0] == '-' || errno || val == 0 || val > UINT32_MAX) {
LOGVAL(LYE_INARG, LOGLINE(sub), value, sub->name);
goto error;
}
list->max = (uint32_t) val;
lyxml_free_elem(module->ctx, sub);
} else if (!strcmp(sub->name, "when")) {
if (list->when) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
list->when = read_yin_when(module, sub);
if (!list->when) {
lyxml_free_elem(module->ctx, sub);
goto error;
}
add_unres_mnode(module, unres, list->when, UNRES_WHEN, NULL, LOGLINE(sub));
lyxml_free_elem(module->ctx, sub);
} else {
LOGVAL(LYE_INSTMT, LOGLINE(sub), sub->name);
goto error;
}
}
/* check - if list is configuration, key statement is mandatory */
if ((list->flags & LYS_CONFIG_W) && !key_str) {
LOGVAL(LYE_MISSSTMT2, LOGLINE(yin), "key", "list");
goto error;
}
if (list->max && list->min > list->max) {
LOGVAL(LYE_SPEC, LOGLINE(yin), "\"min-elements\" is bigger than \"max-elements\".");
goto error;
}
/* middle part - process nodes with cardinality of 0..n except the data nodes */
if (c_tpdf) {
list->tpdf = calloc(c_tpdf, sizeof *list->tpdf);
}
if (c_must) {
list->must = calloc(c_must, sizeof *list->must);
}
if (c_ftrs) {
list->features = calloc(c_ftrs, sizeof *list->features);
}
LY_TREE_FOR(yin->child, sub) {
if (!strcmp(sub->name, "typedef")) {
r = fill_yin_typedef(module, retval, sub, &list->tpdf[list->tpdf_size++], unres);
if (r) {
goto error;
}
} else if (!strcmp(sub->name, "if-feature")) {
GETVAL(value, sub, "name");
add_unres_str(module, unres, &list->features[list->features_size++], UNRES_IFFEAT, value, LOGLINE(sub));
} else if (!strcmp(sub->name, "must")) {
r = fill_yin_must(module, sub, &list->must[list->must_size++]);
if (r) {
goto error;
}
add_unres_mnode(module, unres, &list->must[list->must_size-1], UNRES_MUST, retval, LOGLINE(sub));
}
}
/* last part - process data nodes */
LY_TREE_FOR_SAFE(root.child, next, sub) {
if (!strcmp(sub->name, "container")) {
mnode = read_yin_container(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "leaf-list")) {
mnode = read_yin_leaflist(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "leaf")) {
mnode = read_yin_leaf(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "list")) {
mnode = read_yin_list(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "choice")) {
mnode = read_yin_choice(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "uses")) {
mnode = read_yin_uses(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "grouping")) {
mnode = read_yin_grouping(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "anyxml")) {
mnode = read_yin_anyxml(module, retval, sub, resolve, unres);
}
if (!mnode) {
goto error;
}
lyxml_free_elem(module->ctx, sub);
}
if (parent && ly_mnode_addchild(parent, retval)) {
goto error;
}
if (!key_str) {
/* config false list without a key */
return retval;
}
add_unres_str(module, unres, list, UNRES_LIST_KEYS, key_str, key_line);
/* process unique statements */
if (c_uniq) {
list->unique = calloc(c_uniq, sizeof *list->unique);
}
LY_TREE_FOR_SAFE(uniq.child, next, sub) {
/* HACK for unres */
list->unique[list->unique_size++].leafs = (struct lys_node_leaf **)list;
GETVAL(value, sub, "tag");
add_unres_str(module, unres, &list->unique[list->unique_size-1], UNRES_LIST_UNIQ, value, LOGLINE(sub));
lyxml_free_elem(module->ctx, sub);
}
return retval;
error:
ly_mnode_free(retval);
while (root.child) {
lyxml_free_elem(module->ctx, root.child);
}
while (uniq.child) {
lyxml_free_elem(module->ctx, uniq.child);
}
return NULL;
}
static struct lys_node *
read_yin_container(struct lys_module *module, struct lys_node *parent, struct lyxml_elem *yin, int resolve,
struct unres_schema *unres)
{
struct lyxml_elem *sub, *next, root;
struct lys_node *mnode = NULL;
struct lys_node *retval;
struct lys_node_container *cont;
const char *value;
int r;
int c_tpdf = 0, c_must = 0, c_ftrs = 0;
/* init */
memset(&root, 0, sizeof root);
cont = calloc(1, sizeof *cont);
cont->nodetype = LYS_CONTAINER;
cont->prev = (struct lys_node *)cont;
retval = (struct lys_node *)cont;
if (read_yin_common(module, parent, retval, yin, OPT_IDENT | OPT_MODULE | OPT_CONFIG | OPT_NACMEXT
| (resolve ? OPT_INHERIT : 0))) {
goto error;
}
/* process container's specific children */
LY_TREE_FOR_SAFE(yin->child, next, sub) {
if (!sub->ns) {
/* garbage */
lyxml_free_elem(module->ctx, sub);
continue;
}
if (!strcmp(sub->name, "presence")) {
if (cont->presence) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
GETVAL(value, sub, "value");
cont->presence = lydict_insert(module->ctx, value, strlen(value));
lyxml_free_elem(module->ctx, sub);
} else if (!strcmp(sub->name, "when")) {
if (cont->when) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
cont->when = read_yin_when(module, sub);
if (!cont->when) {
lyxml_free_elem(module->ctx, sub);
goto error;
}
add_unres_mnode(module, unres, cont->when, UNRES_WHEN, retval, LOGLINE(sub));
lyxml_free_elem(module->ctx, sub);
/* data statements */
} else if (!strcmp(sub->name, "container") ||
!strcmp(sub->name, "leaf-list") ||
!strcmp(sub->name, "leaf") ||
!strcmp(sub->name, "list") ||
!strcmp(sub->name, "choice") ||
!strcmp(sub->name, "uses") ||
!strcmp(sub->name, "grouping") ||
!strcmp(sub->name, "anyxml")) {
lyxml_unlink_elem(sub);
lyxml_add_child(&root, sub);
/* array counters */
} else if (!strcmp(sub->name, "typedef")) {
c_tpdf++;
} else if (!strcmp(sub->name, "must")) {
c_must++;
} else if (!strcmp(sub->name, "if-feature")) {
c_ftrs++;
} else {
LOGVAL(LYE_INSTMT, LOGLINE(sub), sub->name);
goto error;
}
}
/* middle part - process nodes with cardinality of 0..n except the data nodes */
if (c_tpdf) {
cont->tpdf = calloc(c_tpdf, sizeof *cont->tpdf);
}
if (c_must) {
cont->must = calloc(c_must, sizeof *cont->must);
}
if (c_ftrs) {
cont->features = calloc(c_ftrs, sizeof *cont->features);
}
LY_TREE_FOR(yin->child, sub) {
if (!strcmp(sub->name, "typedef")) {
r = fill_yin_typedef(module, retval, sub, &cont->tpdf[cont->tpdf_size++], unres);
if (r) {
goto error;
}
} else if (!strcmp(sub->name, "must")) {
r = fill_yin_must(module, sub, &cont->must[cont->must_size++]);
if (r) {
goto error;
}
add_unres_mnode(module, unres, &cont->must[cont->must_size-1], UNRES_MUST, retval, LOGLINE(sub));
} else if (!strcmp(sub->name, "if-feature")) {
GETVAL(value, sub, "name");
add_unres_str(module, unres, &cont->features[cont->features_size++], UNRES_IFFEAT, value, LOGLINE(sub));
}
}
/* last part - process data nodes */
LY_TREE_FOR_SAFE(root.child, next, sub) {
if (!strcmp(sub->name, "container")) {
mnode = read_yin_container(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "leaf-list")) {
mnode = read_yin_leaflist(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "leaf")) {
mnode = read_yin_leaf(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "list")) {
mnode = read_yin_list(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "choice")) {
mnode = read_yin_choice(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "uses")) {
mnode = read_yin_uses(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "grouping")) {
mnode = read_yin_grouping(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "anyxml")) {
mnode = read_yin_anyxml(module, retval, sub, resolve, unres);
}
if (!mnode) {
goto error;
}
lyxml_free_elem(module->ctx, sub);
}
if (parent && ly_mnode_addchild(parent, retval)) {
goto error;
}
return retval;
error:
ly_mnode_free(retval);
while (root.child) {
lyxml_free_elem(module->ctx, root.child);
}
return NULL;
}
static struct lys_node *
read_yin_grouping(struct lys_module *module, struct lys_node *parent, struct lyxml_elem *node, int resolve,
struct unres_schema *unres)
{
struct lyxml_elem *sub, *next, root;
struct lys_node *mnode = NULL;
struct lys_node *retval;
struct lys_node_grp *grp;
int r;
int c_tpdf = 0;
/* init */
memset(&root, 0, sizeof root);
grp = calloc(1, sizeof *grp);
grp->nodetype = LYS_GROUPING;
grp->prev = (struct lys_node *)grp;
retval = (struct lys_node *)grp;
if (read_yin_common(module, parent, retval, node, OPT_IDENT | OPT_MODULE | OPT_NACMEXT)) {
goto error;
}
LY_TREE_FOR_SAFE(node->child, next, sub) {
if (!sub->ns || strcmp(sub->ns->value, LY_NSYIN)) {
/* garbage */
lyxml_free_elem(module->ctx, sub);
continue;
}
/* data statements */
if (!strcmp(sub->name, "container") ||
!strcmp(sub->name, "leaf-list") ||
!strcmp(sub->name, "leaf") ||
!strcmp(sub->name, "list") ||
!strcmp(sub->name, "choice") ||
!strcmp(sub->name, "uses") ||
!strcmp(sub->name, "grouping") ||
!strcmp(sub->name, "anyxml")) {
lyxml_unlink_elem(sub);
lyxml_add_child(&root, sub);
/* array counters */
} else if (!strcmp(sub->name, "typedef")) {
c_tpdf++;
} else {
LOGVAL(LYE_INSTMT, LOGLINE(sub), sub->name);
goto error;
}
}
/* middle part - process nodes with cardinality of 0..n except the data nodes */
if (c_tpdf) {
grp->tpdf = calloc(c_tpdf, sizeof *grp->tpdf);
}
LY_TREE_FOR(node->child, sub) {
r = fill_yin_typedef(module, retval, sub, &grp->tpdf[grp->tpdf_size++], unres);
if (r) {
goto error;
}
}
/* last part - process data nodes */
LY_TREE_FOR_SAFE(root.child, next, sub) {
if (!strcmp(sub->name, "container")) {
mnode = read_yin_container(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "leaf-list")) {
mnode = read_yin_leaflist(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "leaf")) {
mnode = read_yin_leaf(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "list")) {
mnode = read_yin_list(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "choice")) {
mnode = read_yin_choice(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "uses")) {
mnode = read_yin_uses(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "grouping")) {
mnode = read_yin_grouping(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "anyxml")) {
mnode = read_yin_anyxml(module, retval, sub, resolve, unres);
}
if (!mnode) {
goto error;
}
lyxml_free_elem(module->ctx, sub);
}
if (parent && ly_mnode_addchild(parent, retval)) {
goto error;
}
return retval;
error:
ly_mnode_free(retval);
while (root.child) {
lyxml_free_elem(module->ctx, root.child);
}
return NULL;
}
static struct lys_node *
read_yin_input_output(struct lys_module *module, struct lys_node *parent, struct lyxml_elem *yin, int resolve,
struct unres_schema *unres)
{
struct lyxml_elem *sub, *next, root;
struct lys_node *mnode = NULL;
struct lys_node *retval;
struct lys_node_rpc_inout *inout;
int r;
int c_tpdf = 0;
/* init */
memset(&root, 0, sizeof root);
inout = calloc(1, sizeof *inout);
if (!strcmp(yin->name, "input")) {
inout->nodetype = LYS_INPUT;
} else if (!strcmp(yin->name, "output")) {
inout->nodetype = LYS_OUTPUT;
} else {
assert(0);
}
inout->prev = (struct lys_node *)inout;
retval = (struct lys_node *)inout;
if (read_yin_common(module, parent, retval, yin, OPT_MODULE | OPT_NACMEXT)) {
goto error;
}
/* data statements */
LY_TREE_FOR_SAFE(yin->child, next, sub) {
if (!sub->ns || strcmp(sub->ns->value, LY_NSYIN)) {
/* garbage */
lyxml_free_elem(module->ctx, sub);
continue;
}
if (!strcmp(sub->name, "container") ||
!strcmp(sub->name, "leaf-list") ||
!strcmp(sub->name, "leaf") ||
!strcmp(sub->name, "list") ||
!strcmp(sub->name, "choice") ||
!strcmp(sub->name, "uses") ||
!strcmp(sub->name, "grouping") ||
!strcmp(sub->name, "anyxml")) {
lyxml_unlink_elem(sub);
lyxml_add_child(&root, sub);
/* array counters */
} else if (!strcmp(sub->name, "typedef")) {
c_tpdf++;
} else {
LOGVAL(LYE_INSTMT, LOGLINE(sub), sub->name);
goto error;
}
}
/* middle part - process nodes with cardinality of 0..n except the data nodes */
if (c_tpdf) {
inout->tpdf = calloc(c_tpdf, sizeof *inout->tpdf);
}
LY_TREE_FOR(yin->child, sub) {
r = fill_yin_typedef(module, retval, sub, &inout->tpdf[inout->tpdf_size++], unres);
if (r) {
goto error;
}
}
/* last part - process data nodes */
LY_TREE_FOR_SAFE(root.child, next, sub) {
if (!strcmp(sub->name, "container")) {
mnode = read_yin_container(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "leaf-list")) {
mnode = read_yin_leaflist(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "leaf")) {
mnode = read_yin_leaf(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "list")) {
mnode = read_yin_list(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "choice")) {
mnode = read_yin_choice(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "uses")) {
mnode = read_yin_uses(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "grouping")) {
mnode = read_yin_grouping(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "anyxml")) {
mnode = read_yin_anyxml(module, retval, sub, resolve, unres);
}
if (!mnode) {
goto error;
}
lyxml_free_elem(module->ctx, sub);
}
if (parent && ly_mnode_addchild(parent, retval)) {
goto error;
}
return retval;
error:
ly_mnode_free(retval);
while (root.child) {
lyxml_free_elem(module->ctx, root.child);
}
return NULL;
}
static struct lys_node *
read_yin_notif(struct lys_module *module, struct lys_node *parent, struct lyxml_elem *yin, int resolve,
struct unres_schema *unres)
{
struct lyxml_elem *sub, *next, root;
struct lys_node *mnode = NULL;
struct lys_node *retval;
struct lys_node_notif *notif;
const char *value;
int r;
int c_tpdf = 0, c_ftrs = 0;
memset(&root, 0, sizeof root);
notif = calloc(1, sizeof *notif);
notif->nodetype = LYS_NOTIF;
notif->prev = (struct lys_node *)notif;
retval = (struct lys_node *)notif;
if (read_yin_common(module, parent, retval, yin, OPT_IDENT | OPT_MODULE | OPT_NACMEXT)) {
goto error;
}
/* process rpc's specific children */
LY_TREE_FOR_SAFE(yin->child, next, sub) {
if (!sub->ns || strcmp(sub->ns->value, LY_NSYIN)) {
/* garbage */
lyxml_free_elem(module->ctx, sub);
continue;
}
/* data statements */
if (!strcmp(sub->name, "container") ||
!strcmp(sub->name, "leaf-list") ||
!strcmp(sub->name, "leaf") ||
!strcmp(sub->name, "list") ||
!strcmp(sub->name, "choice") ||
!strcmp(sub->name, "uses") ||
!strcmp(sub->name, "grouping") ||
!strcmp(sub->name, "anyxml")) {
lyxml_unlink_elem(sub);
lyxml_add_child(&root, sub);
/* array counters */
} else if (!strcmp(sub->name, "typedef")) {
c_tpdf++;
} else if (!strcmp(sub->name, "if-feature")) {
c_ftrs++;
} else {
LOGVAL(LYE_INSTMT, LOGLINE(sub), sub->name);
goto error;
}
}
/* middle part - process nodes with cardinality of 0..n except the data nodes */
if (c_tpdf) {
notif->tpdf = calloc(c_tpdf, sizeof *notif->tpdf);
}
if (c_ftrs) {
notif->features = calloc(c_ftrs, sizeof *notif->features);
}
LY_TREE_FOR(yin->child, sub) {
if (!strcmp(sub->name, "typedef")) {
r = fill_yin_typedef(module, retval, sub, &notif->tpdf[notif->tpdf_size++], unres);
if (r) {
goto error;
}
} else if (!strcmp(sub->name, "if-features")) {
GETVAL(value, sub, "name");
add_unres_str(module, unres, &notif->features[notif->features_size++], UNRES_IFFEAT, value, LOGLINE(sub));
}
}
/* last part - process data nodes */
LY_TREE_FOR_SAFE(root.child, next, sub) {
if (!strcmp(sub->name, "container")) {
mnode = read_yin_container(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "leaf-list")) {
mnode = read_yin_leaflist(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "leaf")) {
mnode = read_yin_leaf(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "list")) {
mnode = read_yin_list(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "choice")) {
mnode = read_yin_choice(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "uses")) {
mnode = read_yin_uses(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "grouping")) {
mnode = read_yin_grouping(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "anyxml")) {
mnode = read_yin_anyxml(module, retval, sub, resolve, unres);
}
if (!mnode) {
goto error;
}
lyxml_free_elem(module->ctx, sub);
}
if (parent && ly_mnode_addchild(parent, retval)) {
goto error;
}
return retval;
error:
ly_mnode_free(retval);
while (root.child) {
lyxml_free_elem(module->ctx, root.child);
}
return NULL;
}
static struct lys_node *
read_yin_rpc(struct lys_module *module, struct lys_node *parent, struct lyxml_elem *yin, int resolve,
struct unres_schema *unres)
{
struct lyxml_elem *sub, *next, root;
struct lys_node *mnode = NULL;
struct lys_node *retval;
struct lys_node_rpc *rpc;
const char *value;
int r;
int c_tpdf = 0, c_ftrs = 0;
/* init */
memset(&root, 0, sizeof root);
rpc = calloc(1, sizeof *rpc);
rpc->nodetype = LYS_RPC;
rpc->prev = (struct lys_node *)rpc;
retval = (struct lys_node *)rpc;
if (read_yin_common(module, parent, retval, yin, OPT_IDENT | OPT_MODULE | OPT_NACMEXT)) {
goto error;
}
/* process rpc's specific children */
LY_TREE_FOR_SAFE(yin->child, next, sub) {
if (!sub->ns || strcmp(sub->ns->value, LY_NSYIN)) {
/* garbage */
lyxml_free_elem(module->ctx, sub);
continue;
}
if (!strcmp(sub->name, "input")) {
if (rpc->child
&& (rpc->child->nodetype == LYS_INPUT
|| (rpc->child->next && rpc->child->next->nodetype == LYS_INPUT))) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
lyxml_unlink_elem(sub);
lyxml_add_child(&root, sub);
} else if (!strcmp(sub->name, "output")) {
if (rpc->child
&& (rpc->child->nodetype == LYS_INPUT
|| (rpc->child->next && rpc->child->next->nodetype == LYS_INPUT))) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, yin->name);
goto error;
}
lyxml_unlink_elem(sub);
lyxml_add_child(&root, sub);
/* data statements */
} else if (!strcmp(sub->name, "grouping")) {
lyxml_unlink_elem(sub);
lyxml_add_child(&root, sub);
/* array counters */
} else if (!strcmp(sub->name, "typedef")) {
c_tpdf++;
} else if (!strcmp(sub->name, "if-feature")) {
c_ftrs++;
} else {
LOGVAL(LYE_INSTMT, LOGLINE(sub), sub->name);
goto error;
}
}
/* middle part - process nodes with cardinality of 0..n except the data nodes */
if (c_tpdf) {
rpc->tpdf = calloc(c_tpdf, sizeof *rpc->tpdf);
}
if (c_ftrs) {
rpc->features = calloc(c_ftrs, sizeof *rpc->features);
}
LY_TREE_FOR(yin->child, sub) {
if (!strcmp(sub->name, "typedef")) {
r = fill_yin_typedef(module, retval, sub, &rpc->tpdf[rpc->tpdf_size++], unres);
if (r) {
goto error;
}
} else if (!strcmp(sub->name, "if-feature")) {
GETVAL(value, sub, "name");
add_unres_str(module, unres, &rpc->features[rpc->features_size++], UNRES_IFFEAT, value, LOGLINE(sub));
}
}
/* last part - process data nodes */
LY_TREE_FOR_SAFE(root.child, next, sub) {
if (!strcmp(sub->name, "grouping")) {
mnode = read_yin_grouping(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "input")) {
mnode = read_yin_input_output(module, retval, sub, resolve, unres);
} else if (!strcmp(sub->name, "output")) {
mnode = read_yin_input_output(module, retval, sub, resolve, unres);
}
if (!mnode) {
goto error;
}
lyxml_free_elem(module->ctx, sub);
}
if (parent && ly_mnode_addchild(parent, retval)) {
goto error;
}
return retval;
error:
ly_mnode_free(retval);
while (root.child) {
lyxml_free_elem(module->ctx, root.child);
}
return NULL;
}
/*
* resolve - referenced grouping should be bounded to the namespace (resolved)
* only when uses does not appear in grouping. In a case of grouping's uses,
* we just get information but we do not apply augment or refine to it.
*/
static struct lys_node *
read_yin_uses(struct lys_module *module, struct lys_node *parent, struct lyxml_elem *node, int resolve,
struct unres_schema *unres)
{
struct lyxml_elem *sub, *next;
struct lys_node *retval;
struct lys_node_uses *uses;
const char *value;
int c_ref = 0, c_aug = 0, c_ftrs = 0;
int r;
uses = calloc(1, sizeof *uses);
uses->nodetype = LYS_USES;
uses->prev = (struct lys_node *)uses;
retval = (struct lys_node *)uses;
GETVAL(value, node, "name");
uses->name = lydict_insert(module->ctx, value, 0);
if (read_yin_common(module, parent, retval, node, OPT_MODULE | OPT_NACMEXT | (resolve ? OPT_INHERIT : 0))) {
goto error;
}
/* get other properties of uses */
LY_TREE_FOR_SAFE(node->child, next, sub) {
if (!sub->ns || strcmp(sub->ns->value, LY_NSYIN)) {
/* garbage */
lyxml_free_elem(module->ctx, sub);
continue;
}
if (!strcmp(sub->name, "refine")) {
c_ref++;
} else if (!strcmp(sub->name, "augment")) {
c_aug++;
} else if (!strcmp(sub->name, "if-feature")) {
c_ftrs++;
} else if (!strcmp(sub->name, "when")) {
if (uses->when) {
LOGVAL(LYE_TOOMANY, LOGLINE(sub), sub->name, node->name);
goto error;
}
uses->when = read_yin_when(module, sub);
if (!uses->when) {
lyxml_free_elem(module->ctx, sub);
goto error;
}
add_unres_mnode(module, unres, uses->when, UNRES_WHEN, retval, LOGLINE(sub));
lyxml_free_elem(module->ctx, sub);
} else {
LOGVAL(LYE_INSTMT, LOGLINE(sub), sub->name);
goto error;
}
}
/* process properties with cardinality 0..n */
if (c_ref) {
uses->refine = calloc(c_ref, sizeof *uses->refine);
}
if (c_aug) {
uses->augment = calloc(c_aug, sizeof *uses->augment);
}
if (c_ftrs) {
uses->features = calloc(c_ftrs, sizeof *uses->features);
}
LY_TREE_FOR(node->child, sub) {
if (!strcmp(sub->name, "refine")) {
r = fill_yin_refine(module, sub, &uses->refine[uses->refine_size++], uses, unres);
if (r) {
goto error;
}
} else if (!strcmp(sub->name, "augment")) {
r = fill_yin_augment(module, retval, sub, &uses->augment[uses->augment_size++], unres);
if (r) {
goto error;
}
} else if (!strcmp(sub->name, "if-feature")) {
GETVAL(value, sub, "name");
add_unres_str(module, unres, &uses->features[uses->features_size++], UNRES_IFFEAT, value, LOGLINE(sub));
}
}
add_unres_mnode(module, unres, uses, UNRES_USES, NULL, LOGLINE(node));
if (parent && ly_mnode_addchild(parent, retval)) {
goto error;
}
if (resolve) {
/* inherit config flag */
if (parent) {
retval->flags |= parent->flags & LYS_CONFIG_MASK;
} else {
/* default config is true */
retval->flags |= LYS_CONFIG_W;
}
}
return retval;
error:
ly_mnode_free(retval);
return NULL;
}
/* common code for yin_read_module() and yin_read_submodule() */
static int
read_sub_module(struct lys_module *module, struct lyxml_elem *yin, struct unres_schema *unres)
{
struct ly_ctx *ctx = module->ctx;
struct lys_submodule *submodule = (struct lys_submodule *)module;
struct lyxml_elem *next, *node, *child, root, grps, rpcs, notifs;
struct lys_node *mnode = NULL;
const char *value;
int i, r;
int belongsto_flag = 0;
/* counters */
int c_imp = 0, c_rev = 0, c_tpdf = 0, c_ident = 0, c_inc = 0, c_aug = 0, c_ftrs = 0, c_dev = 0;
/* init */
memset(&root, 0, sizeof root);
memset(&grps, 0, sizeof grps);
memset(&rpcs, 0, sizeof rpcs);
memset(&notifs, 0, sizeof notifs);
/*
* in the first run, we process elements with cardinality of 1 or 0..1 and
* count elements with cardinality 0..n. Data elements (choices, containers,
* leafs, lists, leaf-lists) are moved aside to be processed last, since we
* need have all top-level and groupings already prepared at that time. In
* the middle loop, we process other elements with carinality of 0..n since
* we need to allocate arrays to store them.
*/
LY_TREE_FOR_SAFE(yin->child, next, node) {
if (!node->ns || strcmp(node->ns->value, LY_NSYIN)) {
/* garbage */
lyxml_free_elem(ctx, node);
continue;
}
if (!module->type && !strcmp(node->name, "namespace")) {
if (module->ns) {
LOGVAL(LYE_TOOMANY, LOGLINE(node), node->name, yin->name);
goto error;
}
GETVAL(value, node, "uri");
module->ns = lydict_insert(ctx, value, strlen(value));
lyxml_free_elem(ctx, node);
} else if (!module->type && !strcmp(node->name, "prefix")) {
if (module->prefix) {
LOGVAL(LYE_TOOMANY, LOGLINE(node), node->name, yin->name);
goto error;
}
GETVAL(value, node, "value");
if (check_identifier(value, LY_IDENT_PREFIX, LOGLINE(node), module, NULL)) {
goto error;
}
module->prefix = lydict_insert(ctx, value, strlen(value));
lyxml_free_elem(ctx, node);
} else if (module->type && !strcmp(node->name, "belongs-to")) {
if (belongsto_flag) {
LOGVAL(LYE_TOOMANY, LOGLINE(node), node->name, yin->name);
goto error;
}
belongsto_flag = 1;
GETVAL(value, node, "module");
while (submodule->belongsto->type) {
submodule->belongsto = ((struct lys_submodule *)submodule->belongsto)->belongsto;
}
if (value != submodule->belongsto->name) {
LOGVAL(LYE_INARG, LOGLINE(node), value, node->name);
goto error;
}
/* get the prefix substatement, start with checks */
if (!node->child) {
LOGVAL(LYE_MISSSTMT2, LOGLINE(node), "prefix", node->name);
goto error;
} else if (strcmp(node->child->name, "prefix")) {
LOGVAL(LYE_INSTMT, LOGLINE(node->child), node->child->name);
goto error;
} else if (node->child->next) {
LOGVAL(LYE_INSTMT, LOGLINE(node->child->next), node->child->next->name);
goto error;
}
/* and now finally get the value */
GETVAL(value, node->child, "value");
/* check here differs from a generic prefix check, since this prefix
* don't have to be unique
*/
if (check_identifier(value, LY_IDENT_NAME, LOGLINE(node->child), NULL, NULL)) {
goto error;
}
module->prefix = lydict_insert(ctx, value, strlen(value));
/* we are done with belongs-to */
lyxml_free_elem(ctx, node);
/* counters (statements with n..1 cardinality) */
} else if (!strcmp(node->name, "import")) {
c_imp++;
} else if (!strcmp(node->name, "revision")) {
c_rev++;
} else if (!strcmp(node->name, "typedef")) {
c_tpdf++;
} else if (!strcmp(node->name, "identity")) {
c_ident++;
} else if (!strcmp(node->name, "include")) {
c_inc++;
} else if (!strcmp(node->name, "augment")) {
c_aug++;
} else if (!strcmp(node->name, "feature")) {
c_ftrs++;
} else if (!strcmp(node->name, "deviation")) {
c_dev++;
/* data statements */
} else if (!strcmp(node->name, "container") ||
!strcmp(node->name, "leaf-list") ||
!strcmp(node->name, "leaf") ||
!strcmp(node->name, "list") ||
!strcmp(node->name, "choice") ||
!strcmp(node->name, "uses") ||
!strcmp(node->name, "anyxml")) {
lyxml_unlink_elem(node);
lyxml_add_child(&root, node);
} else if (!strcmp(node->name, "grouping")) {
/* keep groupings separated and process them before other data statements */
lyxml_unlink_elem(node);
lyxml_add_child(&grps, node);
/* optional statements */
} else if (!strcmp(node->name, "description")) {
if (module->dsc) {
LOGVAL(LYE_TOOMANY, LOGLINE(node), node->name, yin->name);
goto error;
}
module->dsc = read_yin_subnode(ctx, node, "text");
lyxml_free_elem(ctx, node);
if (!module->dsc) {
goto error;
}
} else if (!strcmp(node->name, "reference")) {
if (module->ref) {
LOGVAL(LYE_TOOMANY, LOGLINE(node), node->name, yin->name);
goto error;
}
module->ref = read_yin_subnode(ctx, node, "text");
lyxml_free_elem(ctx, node);
if (!module->ref) {
goto error;
}
} else if (!strcmp(node->name, "organization")) {
if (module->org) {
LOGVAL(LYE_TOOMANY, LOGLINE(node), node->name, yin->name);
goto error;
}
module->org = read_yin_subnode(ctx, node, "text");
lyxml_free_elem(ctx, node);
if (!module->org) {
goto error;
}
} else if (!strcmp(node->name, "contact")) {
if (module->contact) {
LOGVAL(LYE_TOOMANY, LOGLINE(node), node->name, yin->name);
goto error;
}
module->contact = read_yin_subnode(ctx, node, "text");
lyxml_free_elem(ctx, node);
if (!module->contact) {
goto error;
}
} else if (!strcmp(node->name, "yang-version")) {
/* TODO: support YANG 1.1 ? */
if (module->version) {
LOGVAL(LYE_TOOMANY, LOGLINE(node), node->name, yin->name);
goto error;
}
GETVAL(value, node, "value");
if (strcmp(value, "1")) {
LOGVAL(LYE_INARG, LOGLINE(node), value, "yang-version");
goto error;
}
module->version = 1;
lyxml_free_elem(ctx, node);
/* rpcs & notifications */
} else if (!strcmp(node->name, "rpc")) {
lyxml_unlink_elem(node);
lyxml_add_child(&rpcs, node);
} else if (!strcmp(node->name, "notification")) {
lyxml_unlink_elem(node);
lyxml_add_child(&notifs, node);
} else if (!strcmp(node->name, "extension")) {
GETVAL(value, node, "name");
/* we have 2 supported (hardcoded) extensions:
* NACM's default-deny-write and default-deny-all
*/
if (strcmp(module->ns, LY_NSNACM) ||
(strcmp(value, "default-deny-write") && strcmp(value, "default-deny-all"))) {
LOGWRN("Not supported \"%s\" extension statement found, ignoring.", value);
lyxml_free_elem(ctx, node);
}
} else {
LOGVAL(LYE_INSTMT, LOGLINE(node), node->name);
goto error;
}
}
if (!submodule) {
/* check for mandatory statements */
if (!module->ns) {
LOGVAL(LYE_MISSSTMT2, LOGLINE(yin), "namespace", "module");
goto error;
}
if (!module->prefix) {
LOGVAL(LYE_MISSSTMT2, LOGLINE(yin), "prefix", "module");
goto error;
}
}
/* allocate arrays for elements with cardinality of 0..n */
if (c_imp) {
module->imp = calloc(c_imp, sizeof *module->imp);
}
if (c_rev) {
module->rev = calloc(c_rev, sizeof *module->rev);
}
if (c_tpdf) {
module->tpdf = calloc(c_tpdf, sizeof *module->tpdf);
}
if (c_ident) {
module->ident = calloc(c_ident, sizeof *module->ident);
}
if (c_inc) {
module->inc = calloc(c_inc, sizeof *module->inc);
}
if (c_aug) {
module->augment = calloc(c_aug, sizeof *module->augment);
}
if (c_ftrs) {
module->features = calloc(c_ftrs, sizeof *module->features);
}
if (c_dev) {
module->deviation = calloc(c_dev, sizeof *module->deviation);
}
/* middle part - process nodes with cardinality of 0..n except the data nodes */
LY_TREE_FOR(yin->child, node) {
if (!strcmp(node->name, "import")) {
r = fill_yin_import(module, node, &module->imp[module->imp_size]);
module->imp_size++;
if (r) {
goto error;
}
/* check duplicities in imported modules */
for (i = 0; i < module->imp_size - 1; i++) {
if (!strcmp(module->imp[i].module->name, module->imp[module->imp_size - 1].module->name)) {
LOGVAL(LYE_SPEC, LOGLINE(node), "Importing module \"%s\" repeatedly.", module->imp[i].module->name);
goto error;
}
}
} else if (!strcmp(node->name, "include")) {
r = fill_yin_include(module, node, &module->inc[module->inc_size]);
module->inc_size++;
if (r) {
goto error;
}
/* check duplications in include submodules */
for (i = 0; i < module->inc_size - 1; i++) {
if (!strcmp(module->inc[i].submodule->name, module->inc[module->inc_size - 1].submodule->name)) {
LOGVAL(LYE_SPEC, LOGLINE(node), "Importing module \"%s\" repeatedly.",
module->inc[i].submodule->name);
goto error;
}
}
} else if (!strcmp(node->name, "revision")) {
GETVAL(value, node, "date");
if (check_date(value, LOGLINE(node))) {
goto error;
}
memcpy(module->rev[module->rev_size].date, value, LY_REV_SIZE - 1);
/* check uniqueness of the revision date - not required by RFC */
for (i = 0; i < module->rev_size; i++) {
if (!strcmp(value, module->rev[i].date)) {
LOGVAL(LYE_INARG, LOGLINE(node), value, node->name);
LOGVAL(LYE_SPEC, 0, "Revision is not unique.");
}
}
LY_TREE_FOR(node->child, child) {
if (!strcmp(child->name, "description")) {
if (module->rev[module->rev_size].dsc) {
LOGVAL(LYE_TOOMANY, LOGLINE(node), child->name, node->name);
goto error;
}
module->rev[module->rev_size].dsc = read_yin_subnode(ctx, child, "text");
if (!module->rev[module->rev_size].dsc) {
goto error;
}
} else if (!strcmp(child->name, "reference")) {
if (module->rev[module->rev_size].ref) {
LOGVAL(LYE_TOOMANY, LOGLINE(node), child->name, node->name);
goto error;
}
module->rev[module->rev_size].ref = read_yin_subnode(ctx, child, "text");
if (!module->rev[module->rev_size].ref) {
goto error;
}
} else {
LOGVAL(LYE_INSTMT, LOGLINE(child), child->name);
goto error;
}
}
/* keep the latest revision at position 0 */
if (module->rev_size && strcmp(module->rev[module->rev_size].date, module->rev[0].date) > 0) {
/* switch their position */
value = strdup(module->rev[0].date);
memcpy(module->rev[0].date, module->rev[module->rev_size].date, LY_REV_SIZE - 1);
memcpy(module->rev[module->rev_size].date, value, LY_REV_SIZE - 1);
free((char *)value);
if (module->rev[0].dsc != module->rev[module->rev_size].dsc) {
value = module->rev[0].dsc;
module->rev[0].dsc = module->rev[module->rev_size].dsc;
module->rev[module->rev_size].dsc = value;
}
if (module->rev[0].ref != module->rev[module->rev_size].ref) {
value = module->rev[0].ref;
module->rev[0].ref = module->rev[module->rev_size].ref;
module->rev[module->rev_size].ref = value;
}
}
module->rev_size++;
} else if (!strcmp(node->name, "typedef")) {
r = fill_yin_typedef(module, NULL, node, &module->tpdf[module->tpdf_size], unres);
module->tpdf_size++;
if (r) {
goto error;
}
} else if (!strcmp(node->name, "identity")) {
r = fill_yin_identity(module, node, &module->ident[module->ident_size], unres);
module->ident_size++;
if (r) {
goto error;
}
} else if (!strcmp(node->name, "feature")) {
r = fill_yin_feature(module, node, &module->features[module->features_size], unres);
module->features_size++;
if (r) {
goto error;
}
} else if (!strcmp(node->name, "augment")) {
r = fill_yin_augment(module, NULL, node, &module->augment[module->augment_size], unres);
module->augment_size++;
if (r) {
goto error;
}
/* node is reconnected into the augment, so we have to skip its free at the end of the loop */
continue;
} else if (!strcmp(node->name, "deviation")) {
r = fill_yin_deviation(module, node, &module->deviation[module->deviation_size]);
module->deviation_size++;
if (r) {
goto error;
}
}
}
/* process data nodes. Start with groupings to allow uses
* refer to them
*/
LY_TREE_FOR_SAFE(grps.child, next, node) {
mnode = read_yin_grouping(module, NULL, node, 0, unres);
if (!mnode) {
goto error;
}
lyxml_free_elem(ctx, node);
/* include data element */
if (module->data) {
module->data->prev->next = mnode;
mnode->prev = module->data->prev;
module->data->prev = mnode;
} else {
module->data = mnode;
}
}
/* parse data nodes, ... */
LY_TREE_FOR_SAFE(root.child, next, node) {
if (!strcmp(node->name, "container")) {
mnode = read_yin_container(module, NULL, node, 1, unres);
} else if (!strcmp(node->name, "leaf-list")) {
mnode = read_yin_leaflist(module, NULL, node, 1, unres);
} else if (!strcmp(node->name, "leaf")) {
mnode = read_yin_leaf(module, NULL, node, 1, unres);
} else if (!strcmp(node->name, "list")) {
mnode = read_yin_list(module, NULL, node, 1, unres);
} else if (!strcmp(node->name, "choice")) {
mnode = read_yin_choice(module, NULL, node, 1, unres);
} else if (!strcmp(node->name, "uses")) {
mnode = read_yin_uses(module, NULL, node, 1, unres);
} else if (!strcmp(node->name, "anyxml")) {
mnode = read_yin_anyxml(module, NULL, node, 1, unres);
}
if (!mnode) {
goto error;
}
lyxml_free_elem(ctx, node);
/* include data element */
if (module->data) {
module->data->prev->next = mnode;
mnode->prev = module->data->prev;
module->data->prev = mnode;
} else {
module->data = mnode;
}
}
/* ... rpcs ... */
LY_TREE_FOR_SAFE(rpcs.child, next, node) {
mnode = read_yin_rpc(module, NULL, node, 0, unres);
if (!mnode) {
goto error;
}
lyxml_free_elem(ctx, node);
/* include rpc element */
if (module->rpc) {
module->rpc->prev->next = mnode;
mnode->prev = module->rpc->prev;
module->rpc->prev = mnode;
} else {
module->rpc = mnode;
}
}
/* ... and notifications */
LY_TREE_FOR_SAFE(notifs.child, next, node) {
mnode = read_yin_notif(module, NULL, node, 0, unres);
if (!mnode) {
goto error;
}
lyxml_free_elem(ctx, node);
/* include notification element */
if (module->notif) {
module->notif->prev->next = mnode;
mnode->prev = module->notif->prev;
module->notif->prev = mnode;
} else {
module->notif = mnode;
}
}
return EXIT_SUCCESS;
error:
/* cleanup */
while (root.child) {
lyxml_free_elem(module->ctx, root.child);
}
while (grps.child) {
lyxml_free_elem(module->ctx, grps.child);
}
while (rpcs.child) {
lyxml_free_elem(module->ctx, rpcs.child);
}
free(unres->item);
unres->item = NULL;
free(unres->type);
unres->type = NULL;
free(unres->str_mnode);
unres->str_mnode = NULL;
free(unres->line);
unres->line = NULL;
unres->count = 0;
return EXIT_FAILURE;
}
struct lys_submodule *
yin_read_submodule(struct lys_module *module, const char *data, int implement, struct unres_schema *unres)
{
struct lyxml_elem *yin;
struct lys_submodule *submodule = NULL;
const char *value;
assert(module->ctx);
yin = lyxml_read(module->ctx, data, 0);
if (!yin) {
return NULL;
}
/* check root element */
if (!yin->name || strcmp(yin->name, "submodule")) {
LOGVAL(LYE_INSTMT, LOGLINE(yin), yin->name);
goto error;
}
GETVAL(value, yin, "name");
if (check_identifier(value, LY_IDENT_NAME, LOGLINE(yin), NULL, NULL)) {
goto error;
}
submodule = calloc(1, sizeof *submodule);
if (!submodule) {
LOGMEM;
goto error;
}
submodule->ctx = module->ctx;
submodule->name = lydict_insert(submodule->ctx, value, strlen(value));
submodule->type = 1;
submodule->belongsto = module;
submodule->implemented = (implement ? 1 : 0);
LOGVRB("reading submodule %s", submodule->name);
if (read_sub_module((struct lys_module *)submodule, yin, unres)) {
goto error;
}
/* cleanup */
lyxml_free_elem(module->ctx, yin);
LOGVRB("submodule %s successfully parsed", submodule->name);
return submodule;
error:
/* cleanup */
lyxml_free_elem(module->ctx, yin);
ly_submodule_free(submodule);
return NULL;
}
struct lys_module *
yin_read_module(struct ly_ctx *ctx, const char *data, int implement, struct unres_schema *unres)
{
struct lyxml_elem *yin;
struct lys_module *module = NULL, **newlist = NULL;
const char *value;
int i;
yin = lyxml_read(ctx, data, 0);
if (!yin) {
return NULL;
}
/* check root element */
if (!yin->name || strcmp(yin->name, "module")) {
LOGVAL(LYE_INSTMT, LOGLINE(yin), yin->name);
goto error;
}
GETVAL(value, yin, "name");
if (check_identifier(value, LY_IDENT_NAME, LOGLINE(yin), NULL, NULL)) {
goto error;
}
module = calloc(1, sizeof *module);
if (!module) {
LOGMEM;
goto error;
}
module->ctx = ctx;
module->name = lydict_insert(ctx, value, strlen(value));
module->type = 0;
module->implemented = (implement ? 1 : 0);
LOGVRB("reading module %s", module->name);
if (read_sub_module(module, yin, unres)) {
goto error;
}
/* add to the context's list of modules */
if (ctx->models.used == ctx->models.size) {
newlist = realloc(ctx->models.list, ctx->models.size * 2);
if (!newlist) {
LOGMEM;
goto error;
}
for (i = ctx->models.size; i < ctx->models.size * 2; i++) {
newlist[i] = NULL;
}
ctx->models.size *= 2;
ctx->models.list = newlist;
}
for (i = 0; ctx->models.list[i]; i++) {
/* check name (name/revision) and namespace uniqueness */
if (!strcmp(ctx->models.list[i]->name, module->name)) {
if (ctx->models.list[i]->rev_size == module->rev_size) {
/* both have the same number of revisions */
if (!module->rev_size || !strcmp(ctx->models.list[i]->rev[0].date, module->rev[0].date)) {
/* both have the same revision -> we already have the same module */
/* so free the new one and update the old one's implement flag if needed */
lyxml_free_elem(ctx, yin);
lys_free(module);
LOGVRB("module %s already in context", ctx->models.list[i]->name);
if (implement && !ctx->models.list[i]->implemented) {
lyp_set_implemented(ctx->models.list[i]);
}
return ctx->models.list[i];
}
}
/* else (both elses) keep searching, for now the caller is just adding
* another revision of an already present schema
*/
} else if (!strcmp(ctx->models.list[i]->ns, module->ns)) {
LOGERR(LY_EINVAL, "Two different modules (\"%s\" and \"%s\") have the same namespace \"%s\"",
ctx->models.list[i]->name, module->name, module->ns);
goto error;
}
}
ctx->models.list[i] = module;
ctx->models.used++;
ctx->models.module_set_id++;
/* cleanup */
lyxml_free_elem(ctx, yin);
LOGVRB("module %s successfully parsed", module->name);
return module;
error:
/* cleanup */
lyxml_free_elem(ctx, yin);
lys_free(module);
return NULL;
}