| /* |
| * Copyright (C) 2021 CESNET, https://photonics.cesnet.cz/ |
| * |
| * Written by Václav Kubernát <kubernat@cesnet.cz> |
| * |
| */ |
| |
| #include "trompeloeil_doctest.h" |
| #include <sysrepo-cpp/Connection.hpp> |
| #include "firewall/Firewall.h" |
| #include "test_log_setup.h" |
| |
| class MockNft { |
| public: |
| MAKE_MOCK1(consumeConfig, void(const std::string&)); |
| void operator()(const std::string& config) |
| { |
| consumeConfig(config); |
| } |
| }; |
| |
| const std::string NFTABLES_OUTPUT_START = R"(flush ruleset |
| add table inet filter |
| add chain inet filter acls { type filter hook input priority 0; } |
| add rule inet filter acls ct state established,related accept |
| add rule inet filter acls iif lo accept comment "Accept any localhost traffic" |
| )"; |
| |
| const auto TIMEOUT = std::chrono::milliseconds{1000}; |
| |
| TEST_CASE("nftables generator") |
| { |
| TEST_SYSREPO_INIT_LOGS; |
| sysrepo::Connection srConn; |
| auto srSess = srConn.sessionStart(); |
| // Delete all acls at the start so we know what we're dealing with. |
| srSess.deleteItem("/ietf-access-control-list:acls"); |
| srSess.applyChanges(TIMEOUT); |
| MockNft nft; |
| |
| REQUIRE_CALL(nft, consumeConfig(NFTABLES_OUTPUT_START)); |
| velia::firewall::SysrepoFirewall fw(srSess, [&nft] (const std::string& config) {nft.consumeConfig(config);}); |
| std::string inputData; |
| std::string expectedOutput; |
| |
| SECTION("empty ACL start") |
| { |
| // Add an empty ACL |
| { |
| REQUIRE_CALL(nft, consumeConfig(NFTABLES_OUTPUT_START)); |
| srSess.setItem("/ietf-access-control-list:acls/acl[name='acls']/type", "mixed-eth-ipv4-ipv6-acl-type"); |
| srSess.applyChanges(TIMEOUT); |
| } |
| |
| SECTION("add an IPv4 ACE") |
| { |
| expectedOutput = NFTABLES_OUTPUT_START + |
| "add rule inet filter acls ip saddr 192.168.0.0/24 drop comment \"deny 192.168.0.0/24\"\n"; |
| srSess.setItem( |
| "/ietf-access-control-list:acls/acl[name='acls']/aces/ace[name='deny 192.168.0.0/24']/matches/ipv4/source-ipv4-network", |
| "192.168.0.0/24"); |
| srSess.setItem("/ietf-access-control-list:acls/acl[name='acls']/aces/ace[name='deny 192.168.0.0/24']/actions/forwarding", "drop"); |
| } |
| |
| SECTION("add an IPv6 ACE") |
| { |
| expectedOutput = NFTABLES_OUTPUT_START + |
| "add rule inet filter acls ip6 saddr 2001:db8:85a3::8a2e:370:7334/128 accept comment \"deny an ipv6 address\"\n"; |
| srSess.setItem( |
| "/ietf-access-control-list:acls/acl[name='acls']/aces/ace[name='deny an ipv6 address']/matches/ipv6/source-ipv6-network", |
| "2001:0db8:85a3:0000:0000:8a2e:0370:7334/128"); |
| srSess.setItem("/ietf-access-control-list:acls/acl[name='acls']/aces/ace[name='deny an ipv6 address']/actions/forwarding", "accept"); |
| } |
| |
| SECTION("add ACE without 'matches'") |
| { |
| expectedOutput = NFTABLES_OUTPUT_START + |
| "add rule inet filter acls drop comment \"drop eveything\"\n"; |
| srSess.setItem("/ietf-access-control-list:acls/acl[name='acls']/aces/ace[name='drop eveything']/actions/forwarding", "drop"); |
| } |
| |
| SECTION("add ACE with 'reject'") |
| { |
| expectedOutput = NFTABLES_OUTPUT_START + |
| "add rule inet filter acls reject comment \"reject eveything\"\n"; |
| srSess.setItem("/ietf-access-control-list:acls/acl[name='acls']/aces/ace[name='reject eveything']/actions/forwarding", "reject"); |
| } |
| |
| SECTION("add ACE with 'reject'") |
| { |
| expectedOutput = NFTABLES_OUTPUT_START + |
| "add rule inet filter acls reject comment \"reject eveything\"\n"; |
| srSess.setItem("/ietf-access-control-list:acls/acl[name='acls']/aces/ace[name='reject eveything']/actions/forwarding", "reject"); |
| } |
| |
| SECTION("add two ACEs") |
| { |
| expectedOutput = NFTABLES_OUTPUT_START + |
| "add rule inet filter acls ip saddr 192.168.0.0/24 drop comment \"deny 192.168.0.0/24\"\n" |
| "add rule inet filter acls reject comment \"reject eveything\"\n"; |
| srSess.setItem( |
| "/ietf-access-control-list:acls/acl[name='acls']/aces/ace[name='deny 192.168.0.0/24']/matches/ipv4/source-ipv4-network", |
| "192.168.0.0/24"); |
| srSess.setItem("/ietf-access-control-list:acls/acl[name='acls']/aces/ace[name='deny 192.168.0.0/24']/actions/forwarding", "drop"); |
| srSess.setItem("/ietf-access-control-list:acls/acl[name='acls']/aces/ace[name='reject eveything']/actions/forwarding", "reject"); |
| } |
| |
| REQUIRE_CALL(nft, consumeConfig(expectedOutput)); |
| srSess.applyChanges(TIMEOUT); |
| |
| } |
| |
| SECTION("non-empty ACL start") |
| { |
| // Add a non-empty ACL |
| { |
| REQUIRE_CALL(nft, consumeConfig(NFTABLES_OUTPUT_START + |
| "add rule inet filter acls ip saddr 192.168.0.0/24 drop comment \"deny 192.168.0.0/24\"\n")); |
| srSess.setItem("/ietf-access-control-list:acls/acl[name='acls']/type", "mixed-eth-ipv4-ipv6-acl-type"); |
| srSess.setItem( |
| "/ietf-access-control-list:acls/acl[name='acls']/aces/ace[name='deny 192.168.0.0/24']/matches/ipv4/source-ipv4-network", |
| "192.168.0.0/24"); |
| srSess.setItem("/ietf-access-control-list:acls/acl[name='acls']/aces/ace[name='deny 192.168.0.0/24']/actions/forwarding", "drop"); |
| srSess.applyChanges(TIMEOUT); |
| } |
| |
| SECTION("add another ACE") |
| { |
| expectedOutput = NFTABLES_OUTPUT_START + |
| "add rule inet filter acls ip saddr 192.168.0.0/24 drop comment \"deny 192.168.0.0/24\"\n" |
| "add rule inet filter acls ip saddr 192.168.13.0/24 drop comment \"also deny 192.168.13.0/24\"\n"; |
| srSess.setItem( |
| "/ietf-access-control-list:acls/acl[name='acls']/aces/ace[name='also deny 192.168.13.0/24']/matches/ipv4/source-ipv4-network", |
| "192.168.13.0/24"); |
| srSess.setItem("/ietf-access-control-list:acls/acl[name='acls']/aces/ace[name='also deny 192.168.13.0/24']/actions/forwarding", "drop"); |
| |
| } |
| |
| SECTION("remove ACE") |
| { |
| expectedOutput = NFTABLES_OUTPUT_START; |
| srSess.deleteItem("/ietf-access-control-list:acls/acl[name='acls']/aces/ace[name='deny 192.168.0.0/24']"); |
| } |
| |
| SECTION("remove previous ACE and add another") |
| { |
| expectedOutput = NFTABLES_OUTPUT_START + |
| "add rule inet filter acls ip saddr 192.168.13.0/24 drop comment \"deny 192.168.13.0/24\"\n"; |
| srSess.deleteItem("/ietf-access-control-list:acls/acl[name='acls']/aces/ace[name='deny 192.168.0.0/24']"); |
| srSess.setItem( |
| "/ietf-access-control-list:acls/acl[name='acls']/aces/ace[name='deny 192.168.13.0/24']/matches/ipv4/source-ipv4-network", |
| "192.168.13.0/24"); |
| srSess.setItem("/ietf-access-control-list:acls/acl[name='acls']/aces/ace[name='deny 192.168.13.0/24']/actions/forwarding", "drop"); |
| } |
| |
| SECTION("remove entire ACL") |
| { |
| expectedOutput = NFTABLES_OUTPUT_START; |
| srSess.deleteItem("/ietf-access-control-list:acls/acl[name='acls']"); |
| } |
| |
| REQUIRE_CALL(nft, consumeConfig(expectedOutput)); |
| srSess.applyChanges(TIMEOUT); |
| } |
| } |