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gerrit.cesnet.cz / github / CESNET / libyang / 4b966e2e0920cdb1617c0680c8e4c7151d51f29a / . / src / schema_compile_amend.c
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/**
* @file schema_compile_amend.c
* @author Radek Krejci <rkrejci@cesnet.cz>
* @author Michal Vasko <mvasko@cesnet.cz>
* @brief Schema compilation of augments, deviations, and refines.
*
* Copyright (c) 2015 - 2021 CESNET, z.s.p.o.
*
* This source code is licensed under BSD 3-Clause License (the "License").
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://opensource.org/licenses/BSD-3-Clause
*/
#define _GNU_SOURCE
#include "schema_compile_amend.h"
#include <assert.h>
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "common.h"
#include "dict.h"
#include "log.h"
#include "plugins_exts_compile.h"
#include "schema_compile.h"
#include "schema_compile_node.h"
#include "schema_features.h"
#include "set.h"
#include "tree.h"
#include "tree_data_internal.h"
#include "tree_edit.h"
#include "tree_schema.h"
#include "tree_schema_internal.h"
#include "xpath.h"
static const struct lys_module *lys_schema_node_get_module(const struct ly_ctx *ctx, const char *nametest,
size_t nametest_len, const struct lysp_module *mod, const char **name, size_t *name_len);
/**
* @brief Check the syntax of a node-id and collect all the referenced modules.
*
* @param[in] ctx Compile context.
* @param[in] nodeid Node-id to check.
* @param[in] abs Whether @p nodeid is absolute.
* @param[in,out] mod_set Set to add referenced modules into.
* @param[out] expr Optional node-id parsed into an expression.
* @param[out] target_mod Optional target module of the node-id.
* @return LY_ERR value.
*/
static LY_ERR
lys_nodeid_mod_check(struct lysc_ctx *ctx, const char *nodeid, ly_bool abs, struct ly_set *mod_set,
struct lyxp_expr **expr, struct lys_module **target_mod)
{
LY_ERR ret = LY_SUCCESS;
struct lyxp_expr *e = NULL;
struct lys_module *tmod = NULL, *mod;
const char *nodeid_type = abs ? "absolute-schema-nodeid" : "descendant-schema-nodeid";
uint32_t i;
/* parse */
ret = lyxp_expr_parse(ctx->ctx, nodeid, strlen(nodeid), 0, &e);
if (ret) {
LOGVAL(ctx->ctx, LYVE_SYNTAX_YANG, "Invalid %s value \"%s\" - invalid syntax.",
nodeid_type, nodeid);
ret = LY_EVALID;
goto cleanup;
}
if (abs) {
/* absolute schema nodeid */
i = 0;
} else {
/* descendant schema nodeid */
if (e->tokens[0] != LYXP_TOKEN_NAMETEST) {
LOGVAL(ctx->ctx, LYVE_REFERENCE, "Invalid %s value \"%s\" - name test expected instead of \"%.*s\".",
nodeid_type, nodeid, e->tok_len[0], e->expr + e->tok_pos[0]);
ret = LY_EVALID;
goto cleanup;
}
i = 1;
}
/* check all the tokens */
for ( ; i < e->used; i += 2) {
if (e->tokens[i] != LYXP_TOKEN_OPER_PATH) {
LOGVAL(ctx->ctx, LYVE_REFERENCE, "Invalid %s value \"%s\" - \"/\" expected instead of \"%.*s\".",
nodeid_type, nodeid, e->tok_len[i], e->expr + e->tok_pos[i]);
ret = LY_EVALID;
goto cleanup;
} else if (e->used == i + 1) {
LOGVAL(ctx->ctx, LYVE_REFERENCE,
"Invalid %s value \"%s\" - unexpected end of expression.", nodeid_type, e->expr);
ret = LY_EVALID;
goto cleanup;
} else if (e->tokens[i + 1] != LYXP_TOKEN_NAMETEST) {
LOGVAL(ctx->ctx, LYVE_REFERENCE, "Invalid %s value \"%s\" - name test expected instead of \"%.*s\".",
nodeid_type, nodeid, e->tok_len[i + 1], e->expr + e->tok_pos[i + 1]);
ret = LY_EVALID;
goto cleanup;
} else if (abs) {
mod = (struct lys_module *)lys_schema_node_get_module(ctx->ctx, e->expr + e->tok_pos[i + 1],
e->tok_len[i + 1], ctx->pmod, NULL, NULL);
LY_CHECK_ERR_GOTO(!mod, ret = LY_EVALID, cleanup);
/* only keep the first module */
if (!tmod) {
tmod = mod;
}
/* store the referenced module */
LY_CHECK_GOTO(ret = ly_set_add(mod_set, mod, 0, NULL), cleanup);
}
}
cleanup:
if (ret || !expr) {
lyxp_expr_free(ctx->ctx, e);
e = NULL;
}
if (expr) {
*expr = ret ? NULL : e;
}
if (target_mod) {
*target_mod = ret ? NULL : tmod;
}
return ret;
}
/**
* @brief Check whether 2 schema nodeids match.
*
* @param[in] ctx libyang context.
* @param[in] exp1 First schema nodeid.
* @param[in] exp1p_mod Module of @p exp1 nodes without any prefix.
* @param[in] exp2 Second schema nodeid.
* @param[in] exp2_pmod Module of @p exp2 nodes without any prefix.
* @return Whether the schema nodeids match or not.
*/
static ly_bool
lys_abs_schema_nodeid_match(const struct ly_ctx *ctx, const struct lyxp_expr *exp1, const struct lysp_module *exp1_pmod,
const struct lyxp_expr *exp2, const struct lysp_module *exp2_pmod)
{
uint32_t i;
const struct lys_module *mod1, *mod2;
const char *name1 = NULL, *name2 = NULL;
size_t name1_len = 0, name2_len = 0;
if (exp1->used != exp2->used) {
return 0;
}
for (i = 0; i < exp1->used; ++i) {
assert(exp1->tokens[i] == exp2->tokens[i]);
if (exp1->tokens[i] == LYXP_TOKEN_NAMETEST) {
/* check modules of all the nodes in the node ID */
mod1 = lys_schema_node_get_module(ctx, exp1->expr + exp1->tok_pos[i], exp1->tok_len[i], exp1_pmod,
&name1, &name1_len);
assert(mod1);
mod2 = lys_schema_node_get_module(ctx, exp2->expr + exp2->tok_pos[i], exp2->tok_len[i], exp2_pmod,
&name2, &name2_len);
assert(mod2);
/* compare modules */
if (mod1 != mod2) {
return 0;
}
/* compare names */
if ((name1_len != name2_len) || strncmp(name1, name2, name1_len)) {
return 0;
}
}
}
return 1;
}
LY_ERR
lys_precompile_uses_augments_refines(struct lysc_ctx *ctx, struct lysp_node_uses *uses_p, const struct lysc_node *ctx_node)
{
LY_ERR ret = LY_SUCCESS;
struct lyxp_expr *exp = NULL;
struct lysc_augment *aug;
struct lysp_node_augment *aug_p;
struct lysc_refine *rfn;
struct lysp_refine **new_rfn;
LY_ARRAY_COUNT_TYPE u;
uint32_t i;
struct ly_set mod_set = {0};
LY_LIST_FOR(uses_p->augments, aug_p) {
lysc_update_path(ctx, NULL, "{augment}");
lysc_update_path(ctx, NULL, aug_p->nodeid);
/* parse the nodeid */
LY_CHECK_GOTO(ret = lys_nodeid_mod_check(ctx, aug_p->nodeid, 0, &mod_set, &exp, NULL), cleanup);
/* allocate new compiled augment and store it in the set */
aug = calloc(1, sizeof *aug);
LY_CHECK_ERR_GOTO(!aug, LOGMEM(ctx->ctx); ret = LY_EMEM, cleanup);
LY_CHECK_GOTO(ret = ly_set_add(&ctx->uses_augs, aug, 1, NULL), cleanup);
aug->nodeid = exp;
exp = NULL;
aug->aug_pmod = ctx->pmod;
aug->nodeid_ctx_node = ctx_node;
aug->aug_p = aug_p;
lysc_update_path(ctx, NULL, NULL);
lysc_update_path(ctx, NULL, NULL);
}
LY_ARRAY_FOR(uses_p->refines, u) {
lysc_update_path(ctx, NULL, "{refine}");
lysc_update_path(ctx, NULL, uses_p->refines[u].nodeid);
/* parse the nodeid */
LY_CHECK_GOTO(ret = lys_nodeid_mod_check(ctx, uses_p->refines[u].nodeid, 0, &mod_set, &exp, NULL), cleanup);
/* try to find the node in already compiled refines */
rfn = NULL;
for (i = 0; i < ctx->uses_rfns.count; ++i) {
if (lys_abs_schema_nodeid_match(ctx->ctx, exp, ctx->pmod, ((struct lysc_refine *)ctx->uses_rfns.objs[i])->nodeid,
ctx->pmod)) {
rfn = ctx->uses_rfns.objs[i];
break;
}
}
if (!rfn) {
/* allocate new compiled refine */
rfn = calloc(1, sizeof *rfn);
LY_CHECK_ERR_GOTO(!rfn, LOGMEM(ctx->ctx); ret = LY_EMEM, cleanup);
LY_CHECK_GOTO(ret = ly_set_add(&ctx->uses_rfns, rfn, 1, NULL), cleanup);
rfn->nodeid = exp;
exp = NULL;
rfn->nodeid_pmod = ctx->cur_mod->parsed;
rfn->nodeid_ctx_node = ctx_node;
rfn->uses_p = uses_p;
} else {
/* just free exp */
lyxp_expr_free(ctx->ctx, exp);
exp = NULL;
}
/* add new parsed refine structure */
LY_ARRAY_NEW_GOTO(ctx->ctx, rfn->rfns, new_rfn, ret, cleanup);
*new_rfn = &uses_p->refines[u];
lysc_update_path(ctx, NULL, NULL);
lysc_update_path(ctx, NULL, NULL);
}
cleanup:
if (ret) {
lysc_update_path(ctx, NULL, NULL);
lysc_update_path(ctx, NULL, NULL);
}
/* should include only this module, will fail later if not */
ly_set_erase(&mod_set, NULL);
lyxp_expr_free(ctx->ctx, exp);
return ret;
}
static LY_ERR
lysp_ext_children_dup(const struct ly_ctx *ctx, struct lysp_stmt **child, const struct lysp_stmt *orig_child)
{
struct lysp_stmt *ch;
LY_LIST_FOR(orig_child, orig_child) {
/* new child */
if (!*child) {
*child = ch = calloc(1, sizeof *ch);
LY_CHECK_ERR_RET(!ch, LOGMEM(ctx), LY_EMEM);
} else {
ch->next = calloc(1, sizeof *ch);
LY_CHECK_ERR_RET(!ch->next, LOGMEM(ctx), LY_EMEM);
ch = ch->next;
}
/* fill */
DUP_STRING_RET(ctx, orig_child->stmt, ch->stmt);
ch->flags = orig_child->flags;
DUP_STRING_RET(ctx, orig_child->arg, ch->arg);
ch->format = orig_child->format;
LY_CHECK_RET(ly_dup_prefix_data(ctx, orig_child->format, orig_child->prefix_data, &(ch->prefix_data)));
ch->kw = orig_child->kw;
/* recursive children */
LY_CHECK_RET(lysp_ext_children_dup(ctx, &ch->child, orig_child->child));
}
return LY_SUCCESS;
}
static LY_ERR
lysp_ext_dup(const struct ly_ctx *ctx, struct lysp_ext_instance *ext, const struct lysp_ext_instance *orig_ext)
{
*ext = *orig_ext;
DUP_STRING_RET(ctx, orig_ext->name, ext->name);
DUP_STRING_RET(ctx, orig_ext->argument, ext->argument);
ext->parsed = NULL;
ext->child = NULL;
LY_CHECK_RET(lysp_ext_children_dup(ctx, &ext->child, orig_ext->child));
return LY_SUCCESS;
}
static LY_ERR
lysp_restr_dup(const struct ly_ctx *ctx, struct lysp_restr *restr, const struct lysp_restr *orig_restr)
{
LY_ERR ret = LY_SUCCESS;
if (orig_restr) {
DUP_STRING(ctx, orig_restr->arg.str, restr->arg.str, ret);
restr->arg.mod = orig_restr->arg.mod;
DUP_STRING(ctx, orig_restr->emsg, restr->emsg, ret);
DUP_STRING(ctx, orig_restr->eapptag, restr->eapptag, ret);
DUP_STRING(ctx, orig_restr->dsc, restr->dsc, ret);
DUP_STRING(ctx, orig_restr->ref, restr->ref, ret);
DUP_ARRAY(ctx, orig_restr->exts, restr->exts, lysp_ext_dup);
}
return ret;
}
static LY_ERR
lysp_string_dup(const struct ly_ctx *ctx, const char **str, const char **orig_str)
{
LY_ERR ret = LY_SUCCESS;
DUP_STRING(ctx, *orig_str, *str, ret);
return ret;
}
LY_ERR
lysp_qname_dup(const struct ly_ctx *ctx, struct lysp_qname *qname, const struct lysp_qname *orig_qname)
{
LY_ERR ret = LY_SUCCESS;
if (!orig_qname->str) {
return LY_SUCCESS;
}
DUP_STRING(ctx, orig_qname->str, qname->str, ret);
assert(orig_qname->mod);
qname->mod = orig_qname->mod;
return ret;
}
static LY_ERR
lysp_type_enum_dup(const struct ly_ctx *ctx, struct lysp_type_enum *enm, const struct lysp_type_enum *orig_enm)
{
LY_ERR ret = LY_SUCCESS;
DUP_STRING(ctx, orig_enm->name, enm->name, ret);
DUP_STRING(ctx, orig_enm->dsc, enm->dsc, ret);
DUP_STRING(ctx, orig_enm->ref, enm->ref, ret);
enm->value = orig_enm->value;
DUP_ARRAY(ctx, orig_enm->iffeatures, enm->iffeatures, lysp_qname_dup);
DUP_ARRAY(ctx, orig_enm->exts, enm->exts, lysp_ext_dup);
enm->flags = orig_enm->flags;
return ret;
}
static LY_ERR
lysp_type_dup(const struct ly_ctx *ctx, struct lysp_type *type, const struct lysp_type *orig_type)
{
LY_ERR ret = LY_SUCCESS;
/* array macros read previous data so we must zero it */
memset(type, 0, sizeof *type);
DUP_STRING_GOTO(ctx, orig_type->name, type->name, ret, done);
if (orig_type->range) {
type->range = calloc(1, sizeof *type->range);
LY_CHECK_ERR_RET(!type->range, LOGMEM(ctx), LY_EMEM);
LY_CHECK_RET(lysp_restr_dup(ctx, type->range, orig_type->range));
}
if (orig_type->length) {
type->length = calloc(1, sizeof *type->length);
LY_CHECK_ERR_RET(!type->length, LOGMEM(ctx), LY_EMEM);
LY_CHECK_RET(lysp_restr_dup(ctx, type->length, orig_type->length));
}
DUP_ARRAY(ctx, orig_type->patterns, type->patterns, lysp_restr_dup);
DUP_ARRAY(ctx, orig_type->enums, type->enums, lysp_type_enum_dup);
DUP_ARRAY(ctx, orig_type->bits, type->bits, lysp_type_enum_dup);
LY_CHECK_GOTO(ret = lyxp_expr_dup(ctx, orig_type->path, &type->path), done);
DUP_ARRAY(ctx, orig_type->bases, type->bases, lysp_string_dup);
DUP_ARRAY(ctx, orig_type->types, type->types, lysp_type_dup);
DUP_ARRAY(ctx, orig_type->exts, type->exts, lysp_ext_dup);
type->pmod = orig_type->pmod;
type->compiled = orig_type->compiled;
type->fraction_digits = orig_type->fraction_digits;
type->require_instance = orig_type->require_instance;
type->flags = orig_type->flags;
done:
return ret;
}
static LY_ERR
lysp_when_dup(const struct ly_ctx *ctx, struct lysp_when *when, const struct lysp_when *orig_when)
{
LY_ERR ret = LY_SUCCESS;
DUP_STRING(ctx, orig_when->cond, when->cond, ret);
DUP_STRING(ctx, orig_when->dsc, when->dsc, ret);
DUP_STRING(ctx, orig_when->ref, when->ref, ret);
DUP_ARRAY(ctx, orig_when->exts, when->exts, lysp_ext_dup);
return ret;
}
static LY_ERR
lysp_node_common_dup(const struct ly_ctx *ctx, struct lysp_node *node, const struct lysp_node *orig)
{
LY_ERR ret = LY_SUCCESS;
node->parent = NULL;
node->nodetype = orig->nodetype;
node->flags = orig->flags;
node->next = NULL;
DUP_STRING(ctx, orig->name, node->name, ret);
DUP_STRING(ctx, orig->dsc, node->dsc, ret);
DUP_STRING(ctx, orig->ref, node->ref, ret);
DUP_ARRAY(ctx, orig->iffeatures, node->iffeatures, lysp_qname_dup);
DUP_ARRAY(ctx, orig->exts, node->exts, lysp_ext_dup);
return ret;
}
#define DUP_PWHEN(CTX, ORIG, NEW) \
if (ORIG) { \
NEW = calloc(1, sizeof *NEW); \
LY_CHECK_ERR_RET(!NEW, LOGMEM(CTX), LY_EMEM); \
LY_CHECK_RET(lysp_when_dup(CTX, NEW, ORIG)); \
}
static LY_ERR
lysp_node_dup(const struct ly_ctx *ctx, struct lysp_node *node, const struct lysp_node *orig)
{
LY_ERR ret = LY_SUCCESS;
struct lysp_node_container *cont;
const struct lysp_node_container *orig_cont;
struct lysp_node_leaf *leaf;
const struct lysp_node_leaf *orig_leaf;
struct lysp_node_leaflist *llist;
const struct lysp_node_leaflist *orig_llist;
struct lysp_node_list *list;
const struct lysp_node_list *orig_list;
struct lysp_node_choice *choice;
const struct lysp_node_choice *orig_choice;
struct lysp_node_case *cas;
const struct lysp_node_case *orig_cas;
struct lysp_node_anydata *any;
const struct lysp_node_anydata *orig_any;
struct lysp_node_action *action;
const struct lysp_node_action *orig_action;
struct lysp_node_action_inout *action_inout;
const struct lysp_node_action_inout *orig_action_inout;
struct lysp_node_notif *notif;
const struct lysp_node_notif *orig_notif;
assert(orig->nodetype & (LYS_CONTAINER | LYS_LEAF | LYS_LEAFLIST | LYS_LIST | LYS_CHOICE | LYS_CASE | LYS_ANYDATA |
LYS_RPC | LYS_ACTION | LYS_NOTIF));
/* common part */
LY_CHECK_RET(lysp_node_common_dup(ctx, node, orig));
/* specific part */
switch (node->nodetype) {
case LYS_CONTAINER:
cont = (struct lysp_node_container *)node;
orig_cont = (const struct lysp_node_container *)orig;
DUP_PWHEN(ctx, orig_cont->when, cont->when);
DUP_ARRAY(ctx, orig_cont->musts, cont->musts, lysp_restr_dup);
DUP_STRING(ctx, orig_cont->presence, cont->presence, ret);
/* we do not need the rest */
break;
case LYS_LEAF:
leaf = (struct lysp_node_leaf *)node;
orig_leaf = (const struct lysp_node_leaf *)orig;
DUP_PWHEN(ctx, orig_leaf->when, leaf->when);
DUP_ARRAY(ctx, orig_leaf->musts, leaf->musts, lysp_restr_dup);
LY_CHECK_RET(lysp_type_dup(ctx, &leaf->type, &orig_leaf->type));
DUP_STRING(ctx, orig_leaf->units, leaf->units, ret);
LY_CHECK_RET(lysp_qname_dup(ctx, &leaf->dflt, &orig_leaf->dflt));
break;
case LYS_LEAFLIST:
llist = (struct lysp_node_leaflist *)node;
orig_llist = (const struct lysp_node_leaflist *)orig;
DUP_PWHEN(ctx, orig_llist->when, llist->when);
DUP_ARRAY(ctx, orig_llist->musts, llist->musts, lysp_restr_dup);
LY_CHECK_RET(lysp_type_dup(ctx, &llist->type, &orig_llist->type));
DUP_STRING(ctx, orig_llist->units, llist->units, ret);
DUP_ARRAY(ctx, orig_llist->dflts, llist->dflts, lysp_qname_dup);
llist->min = orig_llist->min;
llist->max = orig_llist->max;
break;
case LYS_LIST:
list = (struct lysp_node_list *)node;
orig_list = (const struct lysp_node_list *)orig;
DUP_PWHEN(ctx, orig_list->when, list->when);
DUP_ARRAY(ctx, orig_list->musts, list->musts, lysp_restr_dup);
DUP_STRING(ctx, orig_list->key, list->key, ret);
/* we do not need these arrays */
DUP_ARRAY(ctx, orig_list->uniques, list->uniques, lysp_qname_dup);
list->min = orig_list->min;
list->max = orig_list->max;
break;
case LYS_CHOICE:
choice = (struct lysp_node_choice *)node;
orig_choice = (const struct lysp_node_choice *)orig;
DUP_PWHEN(ctx, orig_choice->when, choice->when);
/* we do not need children */
LY_CHECK_RET(lysp_qname_dup(ctx, &choice->dflt, &orig_choice->dflt));
break;
case LYS_CASE:
cas = (struct lysp_node_case *)node;
orig_cas = (const struct lysp_node_case *)orig;
DUP_PWHEN(ctx, orig_cas->when, cas->when);
/* we do not need children */
break;
case LYS_ANYDATA:
case LYS_ANYXML:
any = (struct lysp_node_anydata *)node;
orig_any = (const struct lysp_node_anydata *)orig;
DUP_PWHEN(ctx, orig_any->when, any->when);
DUP_ARRAY(ctx, orig_any->musts, any->musts, lysp_restr_dup);
break;
case LYS_RPC:
case LYS_ACTION:
action = (struct lysp_node_action *)node;
orig_action = (const struct lysp_node_action *)orig;
action->input.nodetype = orig_action->input.nodetype;
action->output.nodetype = orig_action->output.nodetype;
/* we do not need the rest */
break;
case LYS_INPUT:
case LYS_OUTPUT:
action_inout = (struct lysp_node_action_inout *)node;
orig_action_inout = (const struct lysp_node_action_inout *)orig;
DUP_ARRAY(ctx, orig_action_inout->musts, action_inout->musts, lysp_restr_dup);
/* we do not need the rest */
break;
case LYS_NOTIF:
notif = (struct lysp_node_notif *)node;
orig_notif = (const struct lysp_node_notif *)orig;
DUP_ARRAY(ctx, orig_notif->musts, notif->musts, lysp_restr_dup);
/* we do not need the rest */
break;
default:
LOGINT_RET(ctx);
}
return ret;
}
/**
* @brief Duplicate a single parsed node. Only attributes that are used in compilation are copied.
*
* @param[in] ctx libyang context.
* @param[in] pnode Node to duplicate.
* @param[in] with_links Whether to also copy any links (child, parent pointers).
* @param[out] dup_p Duplicated parsed node.
* @return LY_ERR value.
*/
static LY_ERR
lysp_dup_single(const struct ly_ctx *ctx, const struct lysp_node *pnode, ly_bool with_links, struct lysp_node **dup_p)
{
LY_ERR ret = LY_SUCCESS;
void *mem = NULL;
if (!pnode) {
*dup_p = NULL;
return LY_SUCCESS;
}
switch (pnode->nodetype) {
case LYS_CONTAINER:
mem = calloc(1, sizeof(struct lysp_node_container));
break;
case LYS_LEAF:
mem = calloc(1, sizeof(struct lysp_node_leaf));
break;
case LYS_LEAFLIST:
mem = calloc(1, sizeof(struct lysp_node_leaflist));
break;
case LYS_LIST:
mem = calloc(1, sizeof(struct lysp_node_list));
break;
case LYS_CHOICE:
mem = calloc(1, sizeof(struct lysp_node_choice));
break;
case LYS_CASE:
mem = calloc(1, sizeof(struct lysp_node_case));
break;
case LYS_ANYDATA:
case LYS_ANYXML:
mem = calloc(1, sizeof(struct lysp_node_anydata));
break;
case LYS_INPUT:
case LYS_OUTPUT:
mem = calloc(1, sizeof(struct lysp_node_action_inout));
break;
case LYS_ACTION:
case LYS_RPC:
mem = calloc(1, sizeof(struct lysp_node_action));
break;
case LYS_NOTIF:
mem = calloc(1, sizeof(struct lysp_node_notif));
break;
default:
LOGINT_RET(ctx);
}
LY_CHECK_ERR_GOTO(!mem, LOGMEM(ctx); ret = LY_EMEM, cleanup);
LY_CHECK_GOTO(ret = lysp_node_dup(ctx, mem, pnode), cleanup);
if (with_links) {
/* copy also parent, child, action, and notification pointers */
((struct lysp_node *)mem)->parent = pnode->parent;
switch (pnode->nodetype) {
case LYS_CONTAINER:
((struct lysp_node_container *)mem)->child = ((struct lysp_node_container *)pnode)->child;
((struct lysp_node_container *)mem)->actions = ((struct lysp_node_container *)pnode)->actions;
((struct lysp_node_container *)mem)->notifs = ((struct lysp_node_container *)pnode)->notifs;
break;
case LYS_LIST:
((struct lysp_node_list *)mem)->child = ((struct lysp_node_list *)pnode)->child;
((struct lysp_node_list *)mem)->actions = ((struct lysp_node_list *)pnode)->actions;
((struct lysp_node_list *)mem)->notifs = ((struct lysp_node_list *)pnode)->notifs;
break;
case LYS_CHOICE:
((struct lysp_node_choice *)mem)->child = ((struct lysp_node_choice *)pnode)->child;
break;
case LYS_CASE:
((struct lysp_node_case *)mem)->child = ((struct lysp_node_case *)pnode)->child;
break;
default:
break;
}
}
cleanup:
if (ret) {
free(mem);
} else {
*dup_p = mem;
}
return ret;
}
#define AMEND_WRONG_NODETYPE(AMEND_STR, OP_STR, PROPERTY) \
LOGVAL(ctx->ctx, LYVE_REFERENCE, "Invalid %s of %s node - it is not possible to %s \"%s\" property.", \
AMEND_STR, lys_nodetype2str(target->nodetype), OP_STR, PROPERTY);\
ret = LY_EVALID; \
goto cleanup;
#define AMEND_CHECK_CARDINALITY(ARRAY, MAX, AMEND_STR, PROPERTY) \
if (LY_ARRAY_COUNT(ARRAY) > MAX) { \
LOGVAL(ctx->ctx, LYVE_SEMANTICS, "Invalid %s of %s with too many (%"LY_PRI_ARRAY_COUNT_TYPE") %s properties.", \
AMEND_STR, lys_nodetype2str(target->nodetype), LY_ARRAY_COUNT(ARRAY), PROPERTY); \
ret = LY_EVALID; \
goto cleanup; \
}
/**
* @brief Apply refine.
*
* @param[in] ctx Compile context.
* @param[in] rfn Refine to apply.
* @param[in,out] target Refine target.
* @return LY_ERR value.
*/
static LY_ERR
lys_apply_refine(struct lysc_ctx *ctx, struct lysp_refine *rfn, struct lysp_node *target)
{
LY_ERR ret = LY_SUCCESS;
LY_ARRAY_COUNT_TYPE u;
struct lysp_qname *qname;
struct lysp_restr **musts, *must;
uint32_t *num;
/* default value */
if (rfn->dflts) {
switch (target->nodetype) {
case LYS_LEAF:
AMEND_CHECK_CARDINALITY(rfn->dflts, 1, "refine", "default");
lydict_remove(ctx->ctx, ((struct lysp_node_leaf *)target)->dflt.str);
LY_CHECK_GOTO(ret = lysp_qname_dup(ctx->ctx, &((struct lysp_node_leaf *)target)->dflt, &rfn->dflts[0]), cleanup);
break;
case LYS_LEAFLIST:
if (rfn->dflts[0].mod->version < LYS_VERSION_1_1) {
LOGVAL(ctx->ctx, LYVE_SEMANTICS,
"Invalid refine of default in leaf-list - the default statement is allowed only in YANG 1.1 modules.");
ret = LY_EVALID;
goto cleanup;
}
FREE_ARRAY(ctx->ctx, ((struct lysp_node_leaflist *)target)->dflts, lysp_qname_free);
((struct lysp_node_leaflist *)target)->dflts = NULL;
LY_ARRAY_FOR(rfn->dflts, u) {
LY_ARRAY_NEW_GOTO(ctx->ctx, ((struct lysp_node_leaflist *)target)->dflts, qname, ret, cleanup);
LY_CHECK_GOTO(ret = lysp_qname_dup(ctx->ctx, qname, &rfn->dflts[u]), cleanup);
}
break;
case LYS_CHOICE:
AMEND_CHECK_CARDINALITY(rfn->dflts, 1, "refine", "default");
lydict_remove(ctx->ctx, ((struct lysp_node_choice *)target)->dflt.str);
LY_CHECK_GOTO(ret = lysp_qname_dup(ctx->ctx, &((struct lysp_node_choice *)target)->dflt, &rfn->dflts[0]), cleanup);
break;
default:
AMEND_WRONG_NODETYPE("refine", "replace", "default");
}
}
/* description */
if (rfn->dsc) {
lydict_remove(ctx->ctx, target->dsc);
DUP_STRING_GOTO(ctx->ctx, rfn->dsc, target->dsc, ret, cleanup);
}
/* reference */
if (rfn->ref) {
lydict_remove(ctx->ctx, target->ref);
DUP_STRING_GOTO(ctx->ctx, rfn->ref, target->ref, ret, cleanup);
}
/* config */
if (rfn->flags & LYS_CONFIG_MASK) {
if (ctx->compile_opts & LYS_COMPILE_NO_CONFIG) {
LOGWRN(ctx->ctx, "Refining config inside %s has no effect (%s).",
(ctx->compile_opts & (LYS_IS_INPUT | LYS_IS_OUTPUT)) ? "RPC/action" :
ctx->compile_opts & LYS_IS_NOTIF ? "notification" : "a subtree ignoring config", ctx->path);
} else {
target->flags &= ~LYS_CONFIG_MASK;
target->flags |= rfn->flags & LYS_CONFIG_MASK;
}
}
/* mandatory */
if (rfn->flags & LYS_MAND_MASK) {
switch (target->nodetype) {
case LYS_LEAF:
case LYS_CHOICE:
case LYS_ANYDATA:
case LYS_ANYXML:
break;
default:
AMEND_WRONG_NODETYPE("refine", "replace", "mandatory");
}
target->flags &= ~LYS_MAND_MASK;
target->flags |= rfn->flags & LYS_MAND_MASK;
}
/* presence */
if (rfn->presence) {
switch (target->nodetype) {
case LYS_CONTAINER:
break;
default:
AMEND_WRONG_NODETYPE("refine", "replace", "presence");
}
lydict_remove(ctx->ctx, ((struct lysp_node_container *)target)->presence);
DUP_STRING_GOTO(ctx->ctx, rfn->presence, ((struct lysp_node_container *)target)->presence, ret, cleanup);
}
/* must */
if (rfn->musts) {
switch (target->nodetype) {
case LYS_CONTAINER:
case LYS_LIST:
case LYS_LEAF:
case LYS_LEAFLIST:
case LYS_ANYDATA:
case LYS_ANYXML:
musts = &((struct lysp_node_container *)target)->musts;
break;
default:
AMEND_WRONG_NODETYPE("refine", "add", "must");
}
LY_ARRAY_FOR(rfn->musts, u) {
LY_ARRAY_NEW_GOTO(ctx->ctx, *musts, must, ret, cleanup);
LY_CHECK_GOTO(ret = lysp_restr_dup(ctx->ctx, must, &rfn->musts[u]), cleanup);
}
}
/* min-elements */
if (rfn->flags & LYS_SET_MIN) {
switch (target->nodetype) {
case LYS_LEAFLIST:
num = &((struct lysp_node_leaflist *)target)->min;
break;
case LYS_LIST:
num = &((struct lysp_node_list *)target)->min;
break;
default:
AMEND_WRONG_NODETYPE("refine", "replace", "min-elements");
}
*num = rfn->min;
}
/* max-elements */
if (rfn->flags & LYS_SET_MAX) {
switch (target->nodetype) {
case LYS_LEAFLIST:
num = &((struct lysp_node_leaflist *)target)->max;
break;
case LYS_LIST:
num = &((struct lysp_node_list *)target)->max;
break;
default:
AMEND_WRONG_NODETYPE("refine", "replace", "max-elements");
}
*num = rfn->max;
}
/* if-feature */
if (rfn->iffeatures) {
switch (target->nodetype) {
case LYS_LEAF:
case LYS_LEAFLIST:
case LYS_LIST:
case LYS_CONTAINER:
case LYS_CHOICE:
case LYS_CASE:
case LYS_ANYDATA:
case LYS_ANYXML:
break;
default:
AMEND_WRONG_NODETYPE("refine", "add", "if-feature");
}
LY_ARRAY_FOR(rfn->iffeatures, u) {
LY_ARRAY_NEW_GOTO(ctx->ctx, target->iffeatures, qname, ret, cleanup);
LY_CHECK_GOTO(ret = lysp_qname_dup(ctx->ctx, qname, &rfn->iffeatures[u]), cleanup);
}
}
/* extension */
/* TODO refine extensions */
cleanup:
return ret;
}
/**
* @brief Apply deviate add.
*
* @param[in] ctx Compile context.
* @param[in] d Deviate add to apply.
* @param[in,out] target Deviation target.
* @return LY_ERR value.
*/
static LY_ERR
lys_apply_deviate_add(struct lysc_ctx *ctx, struct lysp_deviate_add *d, struct lysp_node *target)
{
LY_ERR ret = LY_SUCCESS;
LY_ARRAY_COUNT_TYPE u;
struct lysp_qname *qname;
uint32_t *num;
struct lysp_restr **musts, *must;
#define DEV_CHECK_NONPRESENCE(TYPE, MEMBER, PROPERTY, VALUEMEMBER) \
if (((TYPE)target)->MEMBER) { \
LOGVAL(ctx->ctx, LYVE_REFERENCE, "Invalid deviation adding \"%s\" property which already exists (with value \"%s\").", \
PROPERTY, ((TYPE)target)->VALUEMEMBER); \
ret = LY_EVALID; \
goto cleanup; \
}
/* [units-stmt] */
if (d->units) {
switch (target->nodetype) {
case LYS_LEAF:
case LYS_LEAFLIST:
break;
default:
AMEND_WRONG_NODETYPE("deviation", "add", "units");
}
DEV_CHECK_NONPRESENCE(struct lysp_node_leaf *, units, "units", units);
DUP_STRING_GOTO(ctx->ctx, d->units, ((struct lysp_node_leaf *)target)->units, ret, cleanup);
}
/* *must-stmt */
if (d->musts) {
musts = lysp_node_musts_p(target);
if (!musts) {
AMEND_WRONG_NODETYPE("deviation", "add", "must");
}
LY_ARRAY_FOR(d->musts, u) {
LY_ARRAY_NEW_GOTO(ctx->ctx, *musts, must, ret, cleanup);
LY_CHECK_GOTO(ret = lysp_restr_dup(ctx->ctx, must, &d->musts[u]), cleanup);
}
}
/* *unique-stmt */
if (d->uniques) {
switch (target->nodetype) {
case LYS_LIST:
break;
default:
AMEND_WRONG_NODETYPE("deviation", "add", "unique");
}
LY_ARRAY_FOR(d->uniques, u) {
LY_ARRAY_NEW_GOTO(ctx->ctx, ((struct lysp_node_list *)target)->uniques, qname, ret, cleanup);
LY_CHECK_GOTO(ret = lysp_qname_dup(ctx->ctx, qname, &d->uniques[u]), cleanup);
}
}
/* *default-stmt */
if (d->dflts) {
switch (target->nodetype) {
case LYS_LEAF:
AMEND_CHECK_CARDINALITY(d->dflts, 1, "deviation", "default");
DEV_CHECK_NONPRESENCE(struct lysp_node_leaf *, dflt.str, "default", dflt.str);
LY_CHECK_GOTO(ret = lysp_qname_dup(ctx->ctx, &((struct lysp_node_leaf *)target)->dflt, &d->dflts[0]), cleanup);
break;
case LYS_LEAFLIST:
LY_ARRAY_FOR(d->dflts, u) {
LY_ARRAY_NEW_GOTO(ctx->ctx, ((struct lysp_node_leaflist *)target)->dflts, qname, ret, cleanup);
LY_CHECK_GOTO(ret = lysp_qname_dup(ctx->ctx, qname, &d->dflts[u]), cleanup);
}
break;
case LYS_CHOICE:
AMEND_CHECK_CARDINALITY(d->dflts, 1, "deviation", "default");
DEV_CHECK_NONPRESENCE(struct lysp_node_choice *, dflt.str, "default", dflt.str);
LY_CHECK_GOTO(ret = lysp_qname_dup(ctx->ctx, &((struct lysp_node_choice *)target)->dflt, &d->dflts[0]), cleanup);
break;
default:
AMEND_WRONG_NODETYPE("deviation", "add", "default");
}
}
/* [config-stmt] */
if (d->flags & LYS_CONFIG_MASK) {
switch (target->nodetype) {
case LYS_CONTAINER:
case LYS_LEAF:
case LYS_LEAFLIST:
case LYS_LIST:
case LYS_CHOICE:
case LYS_ANYDATA:
case LYS_ANYXML:
break;
default:
AMEND_WRONG_NODETYPE("deviation", "add", "config");
}
if (target->flags & LYS_CONFIG_MASK) {
LOGVAL(ctx->ctx, LYVE_REFERENCE,
"Invalid deviation adding \"config\" property which already exists (with value \"config %s\").",
target->flags & LYS_CONFIG_W ? "true" : "false");
ret = LY_EVALID;
goto cleanup;
}
target->flags |= d->flags & LYS_CONFIG_MASK;
}
/* [mandatory-stmt] */
if (d->flags & LYS_MAND_MASK) {
switch (target->nodetype) {
case LYS_LEAF:
case LYS_CHOICE:
case LYS_ANYDATA:
case LYS_ANYXML:
break;
default:
AMEND_WRONG_NODETYPE("deviation", "add", "mandatory");
}
if (target->flags & LYS_MAND_MASK) {
LOGVAL(ctx->ctx, LYVE_REFERENCE,
"Invalid deviation adding \"mandatory\" property which already exists (with value \"mandatory %s\").",
target->flags & LYS_MAND_TRUE ? "true" : "false");
ret = LY_EVALID;
goto cleanup;
}
target->flags |= d->flags & LYS_MAND_MASK;
}
/* [min-elements-stmt] */
if (d->flags & LYS_SET_MIN) {
switch (target->nodetype) {
case LYS_LEAFLIST:
num = &((struct lysp_node_leaflist *)target)->min;
break;
case LYS_LIST:
num = &((struct lysp_node_list *)target)->min;
break;
default:
AMEND_WRONG_NODETYPE("deviation", "add", "min-elements");
}
if (target->flags & LYS_SET_MIN) {
LOGVAL(ctx->ctx, LYVE_REFERENCE,
"Invalid deviation adding \"min-elements\" property which already exists (with value \"%u\").", *num);
ret = LY_EVALID;
goto cleanup;
}
*num = d->min;
}
/* [max-elements-stmt] */
if (d->flags & LYS_SET_MAX) {
switch (target->nodetype) {
case LYS_LEAFLIST:
num = &((struct lysp_node_leaflist *)target)->max;
break;
case LYS_LIST:
num = &((struct lysp_node_list *)target)->max;
break;
default:
AMEND_WRONG_NODETYPE("deviation", "add", "max-elements");
}
if (target->flags & LYS_SET_MAX) {
if (*num) {
LOGVAL(ctx->ctx, LYVE_REFERENCE,
"Invalid deviation adding \"max-elements\" property which already exists (with value \"%u\").",
*num);
} else {
LOGVAL(ctx->ctx, LYVE_REFERENCE,
"Invalid deviation adding \"max-elements\" property which already exists (with value \"unbounded\").");
}
ret = LY_EVALID;
goto cleanup;
}
*num = d->max;
}
cleanup:
return ret;
}
/**
* @brief Apply deviate delete.
*
* @param[in] ctx Compile context.
* @param[in] d Deviate delete to apply.
* @param[in,out] target Deviation target.
* @return LY_ERR value.
*/
static LY_ERR
lys_apply_deviate_delete(struct lysc_ctx *ctx, struct lysp_deviate_del *d, struct lysp_node *target)
{
LY_ERR ret = LY_SUCCESS;
struct lysp_restr **musts;
LY_ARRAY_COUNT_TYPE u, v;
struct lysp_qname **uniques, **dflts;
#define DEV_DEL_ARRAY(DEV_ARRAY, ORIG_ARRAY, DEV_MEMBER, ORIG_MEMBER, FREE_FUNC, PROPERTY) \
LY_ARRAY_FOR(d->DEV_ARRAY, u) { \
int found = 0; \
LY_ARRAY_FOR(ORIG_ARRAY, v) { \
if (!strcmp(d->DEV_ARRAY[u]DEV_MEMBER, (ORIG_ARRAY)[v]ORIG_MEMBER)) { \
found = 1; \
break; \
} \
} \
if (!found) { \
LOGVAL(ctx->ctx, LYVE_REFERENCE, \
"Invalid deviation deleting \"%s\" property \"%s\" which does not match any of the target's property values.", \
PROPERTY, d->DEV_ARRAY[u]DEV_MEMBER); \
ret = LY_EVALID; \
goto cleanup; \
} \
LY_ARRAY_DECREMENT(ORIG_ARRAY); \
FREE_FUNC(ctx->ctx, &(ORIG_ARRAY)[v]); \
if (v < LY_ARRAY_COUNT(ORIG_ARRAY)) { \
memmove(&(ORIG_ARRAY)[v], &(ORIG_ARRAY)[v + 1], (LY_ARRAY_COUNT(ORIG_ARRAY) - v) * sizeof *(ORIG_ARRAY)); \
} \
} \
if (!LY_ARRAY_COUNT(ORIG_ARRAY)) { \
LY_ARRAY_FREE(ORIG_ARRAY); \
ORIG_ARRAY = NULL; \
}
#define DEV_CHECK_PRESENCE_VALUE(TYPE, MEMBER, DEVTYPE, PROPERTY, VALUE) \
if (!((TYPE)target)->MEMBER) { \
LOGVAL(ctx->ctx, LY_VCODE_DEV_NOT_PRESENT, DEVTYPE, PROPERTY, VALUE); \
ret = LY_EVALID; \
goto cleanup; \
} else if (strcmp(((TYPE)target)->MEMBER, VALUE)) { \
LOGVAL(ctx->ctx, LYVE_REFERENCE, \
"Invalid deviation deleting \"%s\" property \"%s\" which does not match the target's property value \"%s\".", \
PROPERTY, VALUE, ((TYPE)target)->MEMBER); \
ret = LY_EVALID; \
goto cleanup; \
}
/* [units-stmt] */
if (d->units) {
switch (target->nodetype) {
case LYS_LEAF:
case LYS_LEAFLIST:
break;
default:
AMEND_WRONG_NODETYPE("deviation", "delete", "units");
}
DEV_CHECK_PRESENCE_VALUE(struct lysp_node_leaf *, units, "deleting", "units", d->units);
lydict_remove(ctx->ctx, ((struct lysp_node_leaf *)target)->units);
((struct lysp_node_leaf *)target)->units = NULL;
}
/* *must-stmt */
if (d->musts) {
musts = lysp_node_musts_p(target);
if (!musts) {
AMEND_WRONG_NODETYPE("deviation", "delete", "must");
}
DEV_DEL_ARRAY(musts, *musts, .arg.str, .arg.str, lysp_restr_free, "must");
}
/* *unique-stmt */
if (d->uniques) {
switch (target->nodetype) {
case LYS_LIST:
break;
default:
AMEND_WRONG_NODETYPE("deviation", "delete", "unique");
}
uniques = &((struct lysp_node_list *)target)->uniques;
DEV_DEL_ARRAY(uniques, *uniques, .str, .str, lysp_qname_free, "unique");
}
/* *default-stmt */
if (d->dflts) {
switch (target->nodetype) {
case LYS_LEAF:
AMEND_CHECK_CARDINALITY(d->dflts, 1, "deviation", "default");
DEV_CHECK_PRESENCE_VALUE(struct lysp_node_leaf *, dflt.str, "deleting", "default", d->dflts[0].str);
lydict_remove(ctx->ctx, ((struct lysp_node_leaf *)target)->dflt.str);
((struct lysp_node_leaf *)target)->dflt.str = NULL;
break;
case LYS_LEAFLIST:
dflts = &((struct lysp_node_leaflist *)target)->dflts;
DEV_DEL_ARRAY(dflts, *dflts, .str, .str, lysp_qname_free, "default");
break;
case LYS_CHOICE:
AMEND_CHECK_CARDINALITY(d->dflts, 1, "deviation", "default");
DEV_CHECK_PRESENCE_VALUE(struct lysp_node_choice *, dflt.str, "deleting", "default", d->dflts[0].str);
lydict_remove(ctx->ctx, ((struct lysp_node_choice *)target)->dflt.str);
((struct lysp_node_choice *)target)->dflt.str = NULL;
break;
default:
AMEND_WRONG_NODETYPE("deviation", "delete", "default");
}
}
cleanup:
return ret;
}
/**
* @brief Apply deviate replace.
*
* @param[in] ctx Compile context.
* @param[in] d Deviate replace to apply.
* @param[in,out] target Deviation target.
* @return LY_ERR value.
*/
static LY_ERR
lys_apply_deviate_replace(struct lysc_ctx *ctx, struct lysp_deviate_rpl *d, struct lysp_node *target)
{
LY_ERR ret = LY_SUCCESS;
uint32_t *num;
#define DEV_CHECK_PRESENCE(TYPE, MEMBER, DEVTYPE, PROPERTY, VALUE) \
if (!((TYPE)target)->MEMBER) { \
LOGVAL(ctx->ctx, LY_VCODE_DEV_NOT_PRESENT, DEVTYPE, PROPERTY, VALUE); \
ret = LY_EVALID; \
goto cleanup; \
}
/* [type-stmt] */
if (d->type) {
switch (target->nodetype) {
case LYS_LEAF:
case LYS_LEAFLIST:
break;
default:
AMEND_WRONG_NODETYPE("deviation", "replace", "type");
}
lysp_type_free(ctx->ctx, &((struct lysp_node_leaf *)target)->type);
lysp_type_dup(ctx->ctx, &((struct lysp_node_leaf *)target)->type, d->type);
}
/* [units-stmt] */
if (d->units) {
switch (target->nodetype) {
case LYS_LEAF:
case LYS_LEAFLIST:
break;
default:
AMEND_WRONG_NODETYPE("deviation", "replace", "units");
}
DEV_CHECK_PRESENCE(struct lysp_node_leaf *, units, "replacing", "units", d->units);
lydict_remove(ctx->ctx, ((struct lysp_node_leaf *)target)->units);
DUP_STRING_GOTO(ctx->ctx, d->units, ((struct lysp_node_leaf *)target)->units, ret, cleanup);
}
/* [default-stmt] */
if (d->dflt.str) {
switch (target->nodetype) {
case LYS_LEAF:
DEV_CHECK_PRESENCE(struct lysp_node_leaf *, dflt.str, "replacing", "default", d->dflt.str);
lydict_remove(ctx->ctx, ((struct lysp_node_leaf *)target)->dflt.str);
LY_CHECK_GOTO(ret = lysp_qname_dup(ctx->ctx, &((struct lysp_node_leaf *)target)->dflt, &d->dflt), cleanup);
break;
case LYS_CHOICE:
DEV_CHECK_PRESENCE(struct lysp_node_choice *, dflt.str, "replacing", "default", d->dflt);
lydict_remove(ctx->ctx, ((struct lysp_node_choice *)target)->dflt.str);
LY_CHECK_GOTO(ret = lysp_qname_dup(ctx->ctx, &((struct lysp_node_choice *)target)->dflt, &d->dflt), cleanup);
break;
default:
AMEND_WRONG_NODETYPE("deviation", "replace", "default");
}
}
/* [config-stmt] */
if (d->flags & LYS_CONFIG_MASK) {
switch (target->nodetype) {
case LYS_CONTAINER:
case LYS_LEAF:
case LYS_LEAFLIST:
case LYS_LIST:
case LYS_CHOICE:
case LYS_ANYDATA:
case LYS_ANYXML:
break;
default:
AMEND_WRONG_NODETYPE("deviation", "replace", "config");
}
if (!(target->flags & LYS_CONFIG_MASK)) {
LOGVAL(ctx->ctx, LY_VCODE_DEV_NOT_PRESENT, "replacing", "config",
d->flags & LYS_CONFIG_W ? "config true" : "config false");
ret = LY_EVALID;
goto cleanup;
}
target->flags &= ~LYS_CONFIG_MASK;
target->flags |= d->flags & LYS_CONFIG_MASK;
}
/* [mandatory-stmt] */
if (d->flags & LYS_MAND_MASK) {
switch (target->nodetype) {
case LYS_LEAF:
case LYS_CHOICE:
case LYS_ANYDATA:
case LYS_ANYXML:
break;
default:
AMEND_WRONG_NODETYPE("deviation", "replace", "mandatory");
}
if (!(target->flags & LYS_MAND_MASK)) {
LOGVAL(ctx->ctx, LY_VCODE_DEV_NOT_PRESENT, "replacing", "mandatory",
d->flags & LYS_MAND_TRUE ? "mandatory true" : "mandatory false");
ret = LY_EVALID;
goto cleanup;
}
target->flags &= ~LYS_MAND_MASK;
target->flags |= d->flags & LYS_MAND_MASK;
}
/* [min-elements-stmt] */
if (d->flags & LYS_SET_MIN) {
switch (target->nodetype) {
case LYS_LEAFLIST:
num = &((struct lysp_node_leaflist *)target)->min;
break;
case LYS_LIST:
num = &((struct lysp_node_list *)target)->min;
break;
default:
AMEND_WRONG_NODETYPE("deviation", "replace", "min-elements");
}
if (!(target->flags & LYS_SET_MIN)) {
LOGVAL(ctx->ctx, LYVE_REFERENCE, "Invalid deviation replacing \"min-elements\" property which is not present.");
ret = LY_EVALID;
goto cleanup;
}
*num = d->min;
}
/* [max-elements-stmt] */
if (d->flags & LYS_SET_MAX) {
switch (target->nodetype) {
case LYS_LEAFLIST:
num = &((struct lysp_node_leaflist *)target)->max;
break;
case LYS_LIST:
num = &((struct lysp_node_list *)target)->max;
break;
default:
AMEND_WRONG_NODETYPE("deviation", "replace", "max-elements");
}
if (!(target->flags & LYS_SET_MAX)) {
LOGVAL(ctx->ctx, LYVE_REFERENCE, "Invalid deviation replacing \"max-elements\" property which is not present.");
ret = LY_EVALID;
goto cleanup;
}
*num = d->max;
}
cleanup:
return ret;
}
/**
* @brief Get module of a single nodeid node name test.
*
* @param[in] ctx libyang context.
* @param[in] nametest Nametest with an optional prefix.
* @param[in] nametest_len Length of @p nametest.
* @param[in] mod Both current and prefix module for resolving prefixes and to return in case of no prefix.
* @param[out] name Optional pointer to the name test without the prefix.
* @param[out] name_len Length of @p name.
* @return Resolved module.
*/
static const struct lys_module *
lys_schema_node_get_module(const struct ly_ctx *ctx, const char *nametest, size_t nametest_len,
const struct lysp_module *mod, const char **name, size_t *name_len)
{
const struct lys_module *target_mod;
const char *ptr;
ptr = ly_strnchr(nametest, ':', nametest_len);
if (ptr) {
target_mod = ly_resolve_prefix(ctx, nametest, ptr - nametest, LY_VALUE_SCHEMA, (void *)mod);
if (!target_mod) {
LOGVAL(ctx, LYVE_REFERENCE,
"Invalid absolute-schema-nodeid nametest \"%.*s\" - prefix \"%.*s\" not defined in module \"%s\".",
(int)nametest_len, nametest, (int)(ptr - nametest), nametest, LYSP_MODULE_NAME(mod));
return NULL;
}
if (name) {
*name = ptr + 1;
*name_len = nametest_len - ((ptr - nametest) + 1);
}
} else {
target_mod = mod->mod;
if (name) {
*name = nametest;
*name_len = nametest_len;
}
}
return target_mod;
}
/**
* @brief Check whether a compiled node matches a single schema nodeid name test.
*
* @param[in,out] node Compiled node to consider. On a match it is moved to its parent.
* @param[in] mod Expected module.
* @param[in] name Expected name.
* @param[in] name_len Length of @p name.
* @return Whether it is a match or not.
*/
static ly_bool
lysp_schema_nodeid_match_node(const struct lysc_node **node, const struct lys_module *mod, const char *name,
size_t name_len)
{
/* compare with the module of the node */
if ((*node)->module != mod) {
return 0;
}
/* compare names */
if (ly_strncmp((*node)->name, name, name_len)) {
return 0;
}
/* move to next parent */
*node = (*node)->parent;
return 1;
}
/**
* @brief Check whether a node matches specific schema nodeid.
*
* @param[in] exp Parsed nodeid to match.
* @param[in] exp_pmod Module to use for nodes in @p exp without a prefix.
* @param[in] ctx_node Initial context node that should match, only for descendant paths.
* @param[in] parent First compiled parent to consider. If @p pnode is NULL, it is condered the node to be matched.
* @param[in] pnode Parsed node to be matched. May be NULL if the target node was already compiled.
* @param[in] pnode_mod Compiled @p pnode to-be module.
* @return Whether it is a match or not.
*/
static ly_bool
lysp_schema_nodeid_match(const struct lyxp_expr *exp, const struct lysp_module *exp_pmod, const struct lysc_node *ctx_node,
const struct lysc_node *parent, const struct lysp_node *pnode, const struct lys_module *pnode_mod)
{
uint32_t i;
const struct lys_module *mod;
const char *name = NULL;
size_t name_len = 0;
/* compare last node in the node ID */
i = exp->used - 1;
/* get exp node ID module */
mod = lys_schema_node_get_module(exp_pmod->mod->ctx, exp->expr + exp->tok_pos[i], exp->tok_len[i], exp_pmod, &name, &name_len);
assert(mod);
if (pnode) {
/* compare on the last parsed-only node */
if ((pnode_mod != mod) || ly_strncmp(pnode->name, name, name_len)) {
return 0;
}
} else {
/* using parent directly */
if (!lysp_schema_nodeid_match_node(&parent, mod, name, name_len)) {
return 0;
}
}
/* now compare all the compiled parents */
while (i > 1) {
i -= 2;
assert(exp->tokens[i] == LYXP_TOKEN_NAMETEST);
if (!parent) {
/* no more parents but path continues */
return 0;
}
/* get exp node ID module */
mod = lys_schema_node_get_module(exp_pmod->mod->ctx, exp->expr + exp->tok_pos[i], exp->tok_len[i], exp_pmod, &name,
&name_len);
assert(mod);
/* compare with the parent */
if (!lysp_schema_nodeid_match_node(&parent, mod, name, name_len)) {
return 0;
}
}
if (ctx_node && (ctx_node != parent)) {
/* descendant path has not finished in the context node */
return 0;
} else if (!ctx_node && parent) {
/* some parent was not matched */
return 0;
}
return 1;
}
void
lysc_augment_free(const struct ly_ctx *ctx, struct lysc_augment *aug)
{
if (aug) {
lyxp_expr_free(ctx, aug->nodeid);
free(aug);
}
}
void
lysc_deviation_free(const struct ly_ctx *ctx, struct lysc_deviation *dev)
{
if (dev) {
lyxp_expr_free(ctx, dev->nodeid);
LY_ARRAY_FREE(dev->devs);
LY_ARRAY_FREE(dev->dev_pmods);
free(dev);
}
}
void
lysc_refine_free(const struct ly_ctx *ctx, struct lysc_refine *rfn)
{
if (rfn) {
lyxp_expr_free(ctx, rfn->nodeid);
LY_ARRAY_FREE(rfn->rfns);
free(rfn);
}
}
void
lysp_dev_node_free(const struct ly_ctx *ctx, struct lysp_node *dev_pnode)
{
if (!dev_pnode) {
return;
}
switch (dev_pnode->nodetype) {
case LYS_CONTAINER:
((struct lysp_node_container *)dev_pnode)->child = NULL;
((struct lysp_node_container *)dev_pnode)->actions = NULL;
((struct lysp_node_container *)dev_pnode)->notifs = NULL;
break;
case LYS_LIST:
((struct lysp_node_list *)dev_pnode)->child = NULL;
((struct lysp_node_list *)dev_pnode)->actions = NULL;
((struct lysp_node_list *)dev_pnode)->notifs = NULL;
break;
case LYS_CHOICE:
((struct lysp_node_choice *)dev_pnode)->child = NULL;
break;
case LYS_CASE:
((struct lysp_node_case *)dev_pnode)->child = NULL;
break;
case LYS_LEAF:
case LYS_LEAFLIST:
case LYS_ANYXML:
case LYS_ANYDATA:
/* no children */
break;
case LYS_NOTIF:
((struct lysp_node_notif *)dev_pnode)->child = NULL;
break;
case LYS_RPC:
case LYS_ACTION:
((struct lysp_node_action *)dev_pnode)->input.child = NULL;
((struct lysp_node_action *)dev_pnode)->output.child = NULL;
break;
case LYS_INPUT:
case LYS_OUTPUT:
((struct lysp_node_action_inout *)dev_pnode)->child = NULL;
lysp_node_free((struct ly_ctx *)ctx, dev_pnode);
free(dev_pnode);
return;
default:
LOGINT(ctx);
return;
}
lysp_node_free((struct ly_ctx *)ctx, dev_pnode);
}
LY_ERR
lys_compile_node_deviations_refines(struct lysc_ctx *ctx, const struct lysp_node *pnode, const struct lysc_node *parent,
struct lysp_node **dev_pnode, ly_bool *not_supported)
{
LY_ERR ret = LY_SUCCESS;
uint32_t i;
LY_ARRAY_COUNT_TYPE u;
struct lys_module *orig_mod = ctx->cur_mod;
struct lysp_module *orig_pmod = ctx->pmod;
char orig_path[LYSC_CTX_BUFSIZE];
struct lysc_refine *rfn;
struct lysc_deviation *dev;
struct lysp_deviation *dev_p;
struct lysp_deviate *d;
*dev_pnode = NULL;
*not_supported = 0;
for (i = 0; i < ctx->uses_rfns.count; ++i) {
rfn = ctx->uses_rfns.objs[i];
if (!lysp_schema_nodeid_match(rfn->nodeid, rfn->nodeid_pmod, rfn->nodeid_ctx_node, parent, pnode, orig_mod)) {
/* not our target node */
continue;
}
if (!*dev_pnode) {
/* first refine on this node, create a copy first */
LY_CHECK_GOTO(ret = lysp_dup_single(ctx->ctx, pnode, 1, dev_pnode), cleanup);
}
/* use modules from the refine */
ctx->cur_mod = rfn->nodeid_pmod->mod;
ctx->pmod = (struct lysp_module *)rfn->nodeid_pmod;
/* apply all the refines by changing (the copy of) the parsed node */
LY_ARRAY_FOR(rfn->rfns, u) {
/* keep the current path and add to it */
lysc_update_path(ctx, NULL, "{refine}");
lysc_update_path(ctx, NULL, rfn->rfns[u]->nodeid);
/* apply refine and restore the path */
ret = lys_apply_refine(ctx, rfn->rfns[u], *dev_pnode);
lysc_update_path(ctx, NULL, NULL);
lysc_update_path(ctx, NULL, NULL);
LY_CHECK_GOTO(ret, cleanup);
}
/* refine was applied, remove it */
lysc_refine_free(ctx->ctx, rfn);
ly_set_rm_index(&ctx->uses_rfns, i, NULL);
/* all the refines for one target node are in one structure, we are done */
break;
}
for (i = 0; i < ctx->devs.count; ++i) {
dev = ctx->devs.objs[i];
if (!lysp_schema_nodeid_match(dev->nodeid, dev->dev_pmods[0], NULL, parent, pnode, orig_mod)) {
/* not our target node */
continue;
}
if (dev->not_supported) {
/* it is not supported, no more deviations */
*not_supported = 1;
goto dev_applied;
}
if (!*dev_pnode) {
/* first deviation on this node, create a copy first */
LY_CHECK_GOTO(ret = lysp_dup_single(ctx->ctx, pnode, 1, dev_pnode), cleanup);
}
/* apply all the deviates by changing (the copy of) the parsed node */
LY_ARRAY_FOR(dev->devs, u) {
dev_p = dev->devs[u];
LY_LIST_FOR(dev_p->deviates, d) {
/* generate correct path */
strcpy(orig_path, ctx->path);
ctx->path_len = 1;
ctx->cur_mod = dev->dev_pmods[u]->mod;
ctx->pmod = (struct lysp_module *)dev->dev_pmods[u];
lysc_update_path(ctx, NULL, "{deviation}");
lysc_update_path(ctx, NULL, dev_p->nodeid);
switch (d->mod) {
case LYS_DEV_ADD:
ret = lys_apply_deviate_add(ctx, (struct lysp_deviate_add *)d, *dev_pnode);
break;
case LYS_DEV_DELETE:
ret = lys_apply_deviate_delete(ctx, (struct lysp_deviate_del *)d, *dev_pnode);
break;
case LYS_DEV_REPLACE:
ret = lys_apply_deviate_replace(ctx, (struct lysp_deviate_rpl *)d, *dev_pnode);
break;
default:
LOGINT(ctx->ctx);
ret = LY_EINT;
}
/* restore previous path */
strcpy(ctx->path, orig_path);
ctx->path_len = strlen(ctx->path);
LY_CHECK_GOTO(ret, cleanup);
}
}
dev_applied:
/* deviation was applied, remove it */
lysc_deviation_free(ctx->ctx, dev);
ly_set_rm_index(&ctx->devs, i, NULL);
/* all the deviations for one target node are in one structure, we are done */
break;
}
cleanup:
ctx->cur_mod = orig_mod;
ctx->pmod = orig_pmod;
if (ret) {
lysp_dev_node_free(ctx->ctx, *dev_pnode);
*dev_pnode = NULL;
*not_supported = 0;
}
return ret;
}
/**
* @brief Compile the parsed augment connecting it into its target.
*
* It is expected that all the data referenced in path are present - augments are ordered so that augment B
* targeting data from augment A is being compiled after augment A. Also the modules referenced in the path
* are already implemented and compiled.
*
* @param[in] ctx Compile context.
* @param[in] aug_p Parsed augment to compile.
* @param[in] target Target node of the augment.
* @return LY_SUCCESS on success.
* @return LY_EVALID on failure.
*/
static LY_ERR
lys_compile_augment(struct lysc_ctx *ctx, struct lysp_node_augment *aug_p, struct lysc_node *target)
{
LY_ERR ret = LY_SUCCESS;
struct lysp_node *pnode;
struct lysc_node *node;
struct lysc_when *when_shared = NULL;
struct lysc_node_action **actions;
struct lysc_node_notif **notifs;
ly_bool allow_mandatory = 0, enabled;
struct ly_set child_set = {0};
uint32_t i, opt_prev = ctx->compile_opts;
if (!(target->nodetype & (LYS_CONTAINER | LYS_LIST | LYS_CHOICE | LYS_CASE | LYS_INPUT | LYS_OUTPUT | LYS_NOTIF))) {
LOGVAL(ctx->ctx, LYVE_REFERENCE,
"Augment's %s-schema-nodeid \"%s\" refers to a %s node which is not an allowed augment's target.",
aug_p->nodeid[0] == '/' ? "absolute" : "descendant", aug_p->nodeid, lys_nodetype2str(target->nodetype));
ret = LY_EVALID;
goto cleanup;
}
/* check for mandatory nodes
* - new cases augmenting some choice can have mandatory nodes
* - mandatory nodes are allowed only in case the augmentation is made conditional with a when statement
*/
if (aug_p->when || (target->nodetype == LYS_CHOICE) || (ctx->cur_mod == target->module)) {
allow_mandatory = 1;
}
LY_LIST_FOR(aug_p->child, pnode) {
/* check if the subnode can be connected to the found target (e.g. case cannot be inserted into container) */
if (((pnode->nodetype == LYS_CASE) && (target->nodetype != LYS_CHOICE)) ||
((pnode->nodetype & (LYS_RPC | LYS_ACTION | LYS_NOTIF)) && !(target->nodetype & (LYS_CONTAINER | LYS_LIST))) ||
((pnode->nodetype == LYS_USES) && (target->nodetype == LYS_CHOICE))) {
LOGVAL(ctx->ctx, LYVE_REFERENCE,
"Invalid augment of %s node which is not allowed to contain %s node \"%s\".",
lys_nodetype2str(target->nodetype), lys_nodetype2str(pnode->nodetype), pnode->name);
ret = LY_EVALID;
goto cleanup;
}
/* compile the children */
if (target->nodetype == LYS_CHOICE) {
LY_CHECK_GOTO(ret = lys_compile_node_choice_child(ctx, pnode, target, &child_set), cleanup);
} else if (target->nodetype & (LYS_INPUT | LYS_OUTPUT)) {
if (target->nodetype == LYS_INPUT) {
ctx->compile_opts |= LYS_COMPILE_RPC_INPUT;
} else {
ctx->compile_opts |= LYS_COMPILE_RPC_OUTPUT;
}
LY_CHECK_GOTO(ret = lys_compile_node(ctx, pnode, target, 0, &child_set), cleanup);
} else {
LY_CHECK_GOTO(ret = lys_compile_node(ctx, pnode, target, 0, &child_set), cleanup);
}
/* eval if-features again for the rest of this node processing */
LY_CHECK_GOTO(ret = lys_eval_iffeatures(ctx->ctx, pnode->iffeatures, &enabled), cleanup);
if (!enabled) {
ctx->compile_opts |= LYS_COMPILE_DISABLED;
}
/* since the augment node is not present in the compiled tree, we need to pass some of its
* statements to all its children */
for (i = 0; i < child_set.count; ++i) {
node = child_set.snodes[i];
if (!allow_mandatory && (node->flags & LYS_CONFIG_W) && (node->flags & LYS_MAND_TRUE)) {
node->flags &= ~LYS_MAND_TRUE;
lys_compile_mandatory_parents(target, 0);
LOGVAL(ctx->ctx, LYVE_SEMANTICS,
"Invalid augment adding mandatory node \"%s\" without making it conditional via when statement.",
node->name);
ret = LY_EVALID;
goto cleanup;
}
if (aug_p->when) {
/* pass augment's when to all the children */
ret = lys_compile_when(ctx, aug_p->when, aug_p->flags, target, lysc_data_node(target), node, &when_shared);
LY_CHECK_GOTO(ret, cleanup);
}
}
ly_set_erase(&child_set, NULL);
/* restore options */
ctx->compile_opts = opt_prev;
}
actions = lysc_node_actions_p(target);
notifs = lysc_node_notifs_p(target);
if (aug_p->actions) {
if (!actions) {
LOGVAL(ctx->ctx, LYVE_REFERENCE,
"Invalid augment of %s node which is not allowed to contain RPC/action node \"%s\".",
lys_nodetype2str(target->nodetype), aug_p->actions->name);
ret = LY_EVALID;
goto cleanup;
}
/* compile actions into the target */
LY_LIST_FOR((struct lysp_node *)aug_p->actions, pnode) {
LY_CHECK_GOTO(ret = lys_compile_node(ctx, pnode, target, 0, &child_set), cleanup);
/* eval if-features again for the rest of this node processing */
LY_CHECK_GOTO(ret = lys_eval_iffeatures(ctx->ctx, pnode->iffeatures, &enabled), cleanup);
if (!enabled) {
ctx->compile_opts |= LYS_COMPILE_DISABLED;
}
/* since the augment node is not present in the compiled tree, we need to pass some of its
* statements to all its children */
for (i = 0; i < child_set.count; ++i) {
node = child_set.snodes[i];
if (aug_p->when) {
/* pass augment's when to all the actions */
ret = lys_compile_when(ctx, aug_p->when, aug_p->flags, target, lysc_data_node(target), node, &when_shared);
LY_CHECK_GOTO(ret, cleanup);
}
}
ly_set_erase(&child_set, NULL);
/* restore options */
ctx->compile_opts = opt_prev;
}
}
if (aug_p->notifs) {
if (!notifs) {
LOGVAL(ctx->ctx, LYVE_REFERENCE,
"Invalid augment of %s node which is not allowed to contain notification node \"%s\".",
lys_nodetype2str(target->nodetype), aug_p->notifs->name);
ret = LY_EVALID;
goto cleanup;
}
/* compile notifications into the target */
LY_LIST_FOR((struct lysp_node *)aug_p->notifs, pnode) {
LY_CHECK_GOTO(ret = lys_compile_node(ctx, pnode, target, 0, &child_set), cleanup);
/* eval if-features again for the rest of this node processing */
LY_CHECK_GOTO(ret = lys_eval_iffeatures(ctx->ctx, pnode->iffeatures, &enabled), cleanup);
if (!enabled) {
ctx->compile_opts |= LYS_COMPILE_DISABLED;
}
/* since the augment node is not present in the compiled tree, we need to pass some of its
* statements to all its children */
for (i = 0; i < child_set.count; ++i) {
node = child_set.snodes[i];
if (aug_p->when) {
/* pass augment's when to all the actions */
ret = lys_compile_when(ctx, aug_p->when, aug_p->flags, target, lysc_data_node(target), node, &when_shared);
LY_CHECK_GOTO(ret, cleanup);
}
}
ly_set_erase(&child_set, NULL);
/* restore options */
ctx->compile_opts = opt_prev;
}
}
cleanup:
ly_set_erase(&child_set, NULL);
ctx->compile_opts = opt_prev;
return ret;
}
LY_ERR
lys_compile_node_augments(struct lysc_ctx *ctx, struct lysc_node *node)
{
LY_ERR ret = LY_SUCCESS;
struct lys_module *orig_mod = ctx->cur_mod;
struct lysp_module *orig_pmod = ctx->pmod;
uint32_t i;
char orig_path[LYSC_CTX_BUFSIZE];
struct lysc_augment *aug;
/* uses augments */
for (i = 0; i < ctx->uses_augs.count; ) {
aug = ctx->uses_augs.objs[i];
if (!lysp_schema_nodeid_match(aug->nodeid, orig_mod->parsed, aug->nodeid_ctx_node, node, NULL, NULL)) {
/* not our target node */
++i;
continue;
}
/* use the path and modules from the augment */
lysc_update_path(ctx, NULL, "{augment}");
lysc_update_path(ctx, NULL, aug->aug_p->nodeid);
ctx->pmod = (struct lysp_module *)aug->aug_pmod;
/* apply augment, restore the path */
ret = lys_compile_augment(ctx, aug->aug_p, node);
lysc_update_path(ctx, NULL, NULL);
lysc_update_path(ctx, NULL, NULL);
LY_CHECK_GOTO(ret, cleanup);
/* augment was applied, remove it (index and the whole set may have changed because other augments
* could have been applied) */
ly_set_rm(&ctx->uses_augs, aug, NULL);
lysc_augment_free(ctx->ctx, aug);
i = 0;
}
/* top-level augments */
for (i = 0; i < ctx->augs.count; ) {
aug = ctx->augs.objs[i];
if (!lysp_schema_nodeid_match(aug->nodeid, aug->aug_pmod, NULL, node, NULL, NULL)) {
/* not our target node */
++i;
continue;
}
/* use the path and modules from the augment */
strcpy(orig_path, ctx->path);
ctx->path_len = 1;
ctx->cur_mod = aug->aug_pmod->mod;
ctx->pmod = (struct lysp_module *)aug->aug_pmod;
lysc_update_path(ctx, NULL, "{augment}");
lysc_update_path(ctx, NULL, aug->aug_p->nodeid);
/* apply augment, restore the path */
ret = lys_compile_augment(ctx, aug->aug_p, node);
strcpy(ctx->path, orig_path);
ctx->path_len = strlen(ctx->path);
LY_CHECK_GOTO(ret, cleanup);
/* augment was applied, remove it */
ly_set_rm(&ctx->augs, aug, NULL);
lysc_augment_free(ctx->ctx, aug);
i = 0;
}
cleanup:
ctx->cur_mod = orig_mod;
ctx->pmod = orig_pmod;
return ret;
}
/**
* @brief Prepare a top-level augment to be applied during data nodes compilation.
*
* @param[in] ctx Compile context.
* @param[in] aug_p Parsed augment to be applied.
* @param[in] pmod Both current and prefix module for @p aug_p.
* @return LY_ERR value.
*/
static LY_ERR
lys_precompile_own_augment(struct lysc_ctx *ctx, struct lysp_node_augment *aug_p, const struct lysp_module *pmod)
{
LY_ERR ret = LY_SUCCESS;
struct lyxp_expr *exp = NULL;
struct lysc_augment *aug;
const struct lys_module *mod;
/* parse its target, it was already parsed and fully checked (except for the existence of the nodes) */
ret = lyxp_expr_parse(ctx->ctx, aug_p->nodeid, strlen(aug_p->nodeid), 0, &exp);
LY_CHECK_GOTO(ret, cleanup);
mod = lys_schema_node_get_module(ctx->ctx, exp->expr + exp->tok_pos[1], exp->tok_len[1], pmod, NULL, NULL);
LY_CHECK_ERR_GOTO(!mod, LOGINT(ctx->ctx); ret = LY_EINT, cleanup);
if (mod != ctx->cur_mod) {
/* augment for another module, ignore */
goto cleanup;
}
/* allocate new compiled augment and store it in the set */
aug = calloc(1, sizeof *aug);
LY_CHECK_ERR_GOTO(!aug, LOGMEM(ctx->ctx); ret = LY_EMEM, cleanup);
LY_CHECK_GOTO(ret = ly_set_add(&ctx->augs, aug, 1, NULL), cleanup);
aug->nodeid = exp;
exp = NULL;
aug->aug_pmod = pmod;
aug->aug_p = aug_p;
cleanup:
lyxp_expr_free(ctx->ctx, exp);
return ret;
}
LY_ERR
lys_precompile_own_augments(struct lysc_ctx *ctx)
{
LY_ARRAY_COUNT_TYPE u, v;
LY_ARRAY_FOR(ctx->cur_mod->augmented_by, u) {
const struct lys_module *aug_mod = ctx->cur_mod->augmented_by[u];
struct lysp_node_augment *aug;
/* collect all module augments */
LY_LIST_FOR(aug_mod->parsed->augments, aug) {
LY_CHECK_RET(lys_precompile_own_augment(ctx, aug, aug_mod->parsed));
}
/* collect all submodules augments */
LY_ARRAY_FOR(aug_mod->parsed->includes, v) {
LY_LIST_FOR(aug_mod->parsed->includes[v].submodule->augments, aug) {
LY_CHECK_RET(lys_precompile_own_augment(ctx, aug, (struct lysp_module *)aug_mod->parsed->includes[v].submodule));
}
}
}
return LY_SUCCESS;
}
/**
* @brief Prepare a deviation to be applied during data nodes compilation.
*
* @param[in] ctx Compile context.
* @param[in] dev_p Parsed deviation to be applied.
* @param[in] pmod Both current and prefix module for @p dev_p.
* @return LY_ERR value.
*/
static LY_ERR
lys_precompile_own_deviation(struct lysc_ctx *ctx, struct lysp_deviation *dev_p, const struct lysp_module *pmod)
{
LY_ERR ret = LY_SUCCESS;
struct lysc_deviation *dev = NULL;
struct lyxp_expr *exp = NULL;
struct lysp_deviation **new_dev;
const struct lys_module *mod;
const struct lysp_module **new_dev_pmod;
uint32_t i;
/* parse its target, it was already parsed and fully checked (except for the existence of the nodes) */
ret = lyxp_expr_parse(ctx->ctx, dev_p->nodeid, strlen(dev_p->nodeid), 0, &exp);
LY_CHECK_GOTO(ret, cleanup);
mod = lys_schema_node_get_module(ctx->ctx, exp->expr + exp->tok_pos[1], exp->tok_len[1], pmod, NULL, NULL);
LY_CHECK_ERR_GOTO(!mod, LOGINT(ctx->ctx); ret = LY_EINT, cleanup);
if (mod != ctx->cur_mod) {
/* deviation for another module, ignore */
goto cleanup;
}
/* try to find the node in already compiled deviations */
for (i = 0; i < ctx->devs.count; ++i) {
if (lys_abs_schema_nodeid_match(ctx->ctx, exp, pmod, ((struct lysc_deviation *)ctx->devs.objs[i])->nodeid,
((struct lysc_deviation *)ctx->devs.objs[i])->dev_pmods[0])) {
dev = ctx->devs.objs[i];
break;
}
}
if (!dev) {
/* allocate new compiled deviation */
dev = calloc(1, sizeof *dev);
LY_CHECK_ERR_GOTO(!dev, LOGMEM(ctx->ctx); ret = LY_EMEM, cleanup);
LY_CHECK_GOTO(ret = ly_set_add(&ctx->devs, dev, 1, NULL), cleanup);
dev->nodeid = exp;
exp = NULL;
}
/* add new parsed deviation structure */
LY_ARRAY_NEW_GOTO(ctx->ctx, dev->devs, new_dev, ret, cleanup);
*new_dev = dev_p;
LY_ARRAY_NEW_GOTO(ctx->ctx, dev->dev_pmods, new_dev_pmod, ret, cleanup);
*new_dev_pmod = pmod;
cleanup:
lyxp_expr_free(ctx->ctx, exp);
return ret;
}
LY_ERR
lys_precompile_own_deviations(struct lysc_ctx *ctx)
{
LY_ARRAY_COUNT_TYPE u, v, w;
struct lys_module *orig_cur_mod;
const struct lys_module *dev_mod;
struct lysc_deviation *dev;
struct lysp_deviate *d;
int not_supported;
uint32_t i;
LY_ARRAY_FOR(ctx->cur_mod->deviated_by, u) {
dev_mod = ctx->cur_mod->deviated_by[u];
/* compile all module deviations */
LY_ARRAY_FOR(dev_mod->parsed->deviations, v) {
LY_CHECK_RET(lys_precompile_own_deviation(ctx, &dev_mod->parsed->deviations[v], dev_mod->parsed));
}
/* compile all submodules deviations */
LY_ARRAY_FOR(dev_mod->parsed->includes, v) {
LY_ARRAY_FOR(dev_mod->parsed->includes[v].submodule->deviations, w) {
LY_CHECK_RET(lys_precompile_own_deviation(ctx, &dev_mod->parsed->includes[v].submodule->deviations[w],
(struct lysp_module *)dev_mod->parsed->includes[v].submodule));
}
}
}
/* set not-supported flags for all the deviations */
for (i = 0; i < ctx->devs.count; ++i) {
dev = ctx->devs.objs[i];
not_supported = 0;
LY_ARRAY_FOR(dev->devs, u) {
LY_LIST_FOR(dev->devs[u]->deviates, d) {
if (d->mod == LYS_DEV_NOT_SUPPORTED) {
not_supported = 1;
break;
}
}
if (not_supported) {
break;
}
}
if (not_supported && (LY_ARRAY_COUNT(dev->devs) > 1)) {
orig_cur_mod = ctx->cur_mod;
ctx->cur_mod = dev->dev_pmods[u]->mod;
lysc_update_path(ctx, NULL, "{deviation}");
lysc_update_path(ctx, NULL, dev->nodeid->expr);
LOGVAL(ctx->ctx, LYVE_SEMANTICS,
"Multiple deviations of \"%s\" with one of them being \"not-supported\".", dev->nodeid->expr);
lysc_update_path(ctx, NULL, NULL);
lysc_update_path(ctx, NULL, NULL);
ctx->cur_mod = orig_cur_mod;
return LY_EVALID;
}
dev->not_supported = not_supported;
}
return LY_SUCCESS;
}
/**
* @brief Add a module reference into an array, checks for duplicities.
*
* @param[in] ctx Compile context.
* @param[in] mod Module reference to add.
* @param[in,out] mod_array Module sized array to add to.
* @return LY_ERR value.
*/
static LY_ERR
lys_array_add_mod_ref(struct lysc_ctx *ctx, struct lys_module *mod, struct lys_module ***mod_array)
{
LY_ARRAY_COUNT_TYPE u;
struct lys_module **new_mod;
LY_ARRAY_FOR(*mod_array, u) {
if ((*mod_array)[u] == mod) {
/* already there */
return LY_EEXIST;
}
}
/* add the new module ref */
LY_ARRAY_NEW_RET(ctx->ctx, *mod_array, new_mod, LY_EMEM);
*new_mod = mod;
return LY_SUCCESS;
}
/**
* @brief Check whether all modules in a set are implemented.
*
* @param[in] mod_set Module set to check.
* @return Whether all modules are implemented or not.
*/
static ly_bool
lys_precompile_mod_set_is_all_implemented(const struct ly_set *mod_set)
{
uint32_t i;
const struct lys_module *mod;
for (i = 0; i < mod_set->count; ++i) {
mod = mod_set->objs[i];
if (!mod->implemented) {
return 0;
}
}
return 1;
}
LY_ERR
lys_precompile_augments_deviations(struct lys_module *mod, struct lys_glob_unres *unres)
{
LY_ERR ret = LY_SUCCESS, r;
LY_ARRAY_COUNT_TYPE u, v;
struct lysc_ctx ctx = {0};
struct lysp_module *mod_p;
struct lys_module *m;
struct lysp_submodule *submod;
struct lysp_node_augment *aug;
const char **imp_f, *all_f[] = {"*", NULL};
uint32_t i;
struct ly_set mod_set = {0}, set = {0};
mod_p = mod->parsed;
/* prepare context */
ctx.ctx = mod->ctx;
ctx.cur_mod = mod;
ctx.pmod = mod_p;
ctx.path_len = 1;
ctx.path[0] = '/';
LY_LIST_FOR(mod_p->augments, aug) {
/* get target module */
lysc_update_path(&ctx, NULL, "{augment}");
lysc_update_path(&ctx, NULL, aug->nodeid);
ret = lys_nodeid_mod_check(&ctx, aug->nodeid, 1, &set, NULL, &m);
lysc_update_path(&ctx, NULL, NULL);
lysc_update_path(&ctx, NULL, NULL);
LY_CHECK_GOTO(ret, cleanup);
/* add this module into the target module augmented_by, if not there and implemented */
if ((lys_array_add_mod_ref(&ctx, mod, &m->augmented_by) != LY_EEXIST) ||
!lys_precompile_mod_set_is_all_implemented(&set)) {
LY_CHECK_GOTO(ret = ly_set_merge(&mod_set, &set, 0, NULL), cleanup);
}
ly_set_erase(&set, NULL);
}
LY_ARRAY_FOR(mod_p->deviations, u) {
/* get target module */
lysc_update_path(&ctx, NULL, "{deviation}");
lysc_update_path(&ctx, NULL, mod_p->deviations[u].nodeid);
ret = lys_nodeid_mod_check(&ctx, mod_p->deviations[u].nodeid, 1, &set, NULL, &m);
lysc_update_path(&ctx, NULL, NULL);
lysc_update_path(&ctx, NULL, NULL);
LY_CHECK_GOTO(ret, cleanup);
/* add this module into the target module deviated_by, if not there and implemented */
if ((lys_array_add_mod_ref(&ctx, mod, &m->deviated_by) != LY_EEXIST) ||
!lys_precompile_mod_set_is_all_implemented(&set)) {
LY_CHECK_GOTO(ret = ly_set_merge(&mod_set, &set, 0, NULL), cleanup);
}
ly_set_erase(&set, NULL);
}
/* the same for augments and deviations in submodules */
LY_ARRAY_FOR(mod_p->includes, v) {
submod = mod_p->includes[v].submodule;
ctx.pmod = (struct lysp_module *)submod;
LY_LIST_FOR(submod->augments, aug) {
lysc_update_path(&ctx, NULL, "{augment}");
lysc_update_path(&ctx, NULL, aug->nodeid);
ret = lys_nodeid_mod_check(&ctx, aug->nodeid, 1, &set, NULL, &m);
lysc_update_path(&ctx, NULL, NULL);
lysc_update_path(&ctx, NULL, NULL);
LY_CHECK_GOTO(ret, cleanup);
if ((lys_array_add_mod_ref(&ctx, mod, &m->augmented_by) != LY_EEXIST) ||
!lys_precompile_mod_set_is_all_implemented(&set)) {
LY_CHECK_GOTO(ret = ly_set_merge(&mod_set, &set, 0, NULL), cleanup);
}
ly_set_erase(&set, NULL);
}
LY_ARRAY_FOR(submod->deviations, u) {
lysc_update_path(&ctx, NULL, "{deviation}");
lysc_update_path(&ctx, NULL, submod->deviations[u].nodeid);
ret = lys_nodeid_mod_check(&ctx, submod->deviations[u].nodeid, 1, &set, NULL, &m);
lysc_update_path(&ctx, NULL, NULL);
lysc_update_path(&ctx, NULL, NULL);
LY_CHECK_GOTO(ret, cleanup);
if ((lys_array_add_mod_ref(&ctx, mod, &m->deviated_by) != LY_EEXIST) ||
!lys_precompile_mod_set_is_all_implemented(&set)) {
LY_CHECK_GOTO(ret = ly_set_merge(&mod_set, &set, 0, NULL), cleanup);
}
ly_set_erase(&set, NULL);
}
}
for (i = 0; i < mod_set.count; ++i) {
m = mod_set.objs[i];
if (m == mod) {
/* will be applied normally later */
continue;
}
/* we do not actually need the target modules compiled with out amends, they just need to be implemented
* not compiled yet and marked for compilation */
if (!m->implemented) {
/* implement the target module */
imp_f = (mod->ctx->flags & LY_CTX_ENABLE_IMP_FEATURES) ? all_f : NULL;
r = lys_implement(m, imp_f, unres);
if (r == LY_ERECOMPILE) {
/* implement all the modules right away to save possible later recompilation */
ret = r;
continue;
} else if (r) {
/* error */
ret = r;
goto cleanup;
}
} else if (m->compiled) {
/* target module was already compiled without our amends (augment/deviation), we need to recompile it */
m->to_compile = 1;
ret = LY_ERECOMPILE;
continue;
}
}
cleanup:
ly_set_erase(&set, NULL);
ly_set_erase(&mod_set, NULL);
return ret;
}
void
lys_precompile_augments_deviations_revert(struct ly_ctx *ctx, const struct lys_module *mod)
{
uint32_t i;
LY_ARRAY_COUNT_TYPE u, count;
struct lys_module *m;
for (i = 0; i < ctx->list.count; ++i) {
m = ctx->list.objs[i];
if (m->augmented_by) {
count = LY_ARRAY_COUNT(m->augmented_by);
for (u = 0; u < count; ++u) {
if (m->augmented_by[u] == mod) {
/* keep the order */
if (u < count - 1) {
memmove(m->augmented_by + u, m->augmented_by + u + 1, (count - u - 1) * sizeof *m->augmented_by);
}
LY_ARRAY_DECREMENT(m->augmented_by);
break;
}
}
if (!LY_ARRAY_COUNT(m->augmented_by)) {
LY_ARRAY_FREE(m->augmented_by);
m->augmented_by = NULL;
}
}
if (m->deviated_by) {
count = LY_ARRAY_COUNT(m->deviated_by);
for (u = 0; u < count; ++u) {
if (m->deviated_by[u] == mod) {
/* keep the order */
if (u < count - 1) {
memmove(m->deviated_by + u, m->deviated_by + u + 1, (count - u - 1) * sizeof *m->deviated_by);
}
LY_ARRAY_DECREMENT(m->deviated_by);
break;
}
}
if (!LY_ARRAY_COUNT(m->deviated_by)) {
LY_ARRAY_FREE(m->deviated_by);
m->deviated_by = NULL;
}
}
}
}