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src/tests/ipv4_test.c
361 строка
11 KB
Michael Brown
[ipv4] Make the IPV4() macro available to non-test code
04 авг 2026, 01:56
04 авг 2026, 01:56
354a7dd
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/* * Copyright (C) 2015 Michael Brown <mbrown@fensystems.co.uk>. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301, USA. * * You can also choose to distribute this program under the terms of * the Unmodified Binary Distribution Licence (as given in the file * COPYING.UBDL), provided that you have satisfied its requirements. */ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); /** @file * * IPv4 tests * */ /* Forcibly enable assertions */ #undef NDEBUG #include <stdint.h> #include <string.h> #include <assert.h> #include <byteswap.h> #include <ipxe/in.h> #include <ipxe/ip.h> #include <ipxe/test.h> #include "netdev_test.h" /** * Report an inet_ntoa() test result * * @v addr IPv4 address * @v text Expected textual representation * @v file Test code file * @v line Test code line */ static void inet_ntoa_okx ( uint32_t addr, const char *text, const char *file, unsigned int line ) { struct in_addr in = { .s_addr = addr }; char *actual; /* Format address */ actual = inet_ntoa ( in ); DBG ( "inet_ntoa ( %d.%d.%d.%d ) = %s\n", ( ( ntohl ( addr ) >> 24 ) & 0xff ), ( ( ntohl ( addr ) >> 16 ) & 0xff ), ( ( ntohl ( addr ) >> 8 ) & 0xff ), ( ( ntohl ( addr ) >> 0 ) & 0xff ), actual ); okx ( strcmp ( actual, text ) == 0, file, line ); } #define inet_ntoa_ok( addr, text ) \ inet_ntoa_okx ( addr, text, __FILE__, __LINE__ ) /** * Report an inet_aton() test result * * @v text Textual representation * @v addr Expected IPv4 address * @v file Test code file * @v line Test code line */ static void inet_aton_okx ( const char *text, uint32_t addr, const char *file, unsigned int line ) { struct in_addr actual; /* Parse address */ okx ( inet_aton ( text, &actual ) != 0, file, line ); DBG ( "inet_aton ( \"%s\" ) = %s\n", text, inet_ntoa ( actual ) ); okx ( actual.s_addr == addr, file, line ); }; #define inet_aton_ok( text, addr ) \ inet_aton_okx ( text, addr, __FILE__, __LINE__ ) /** * Report an inet_aton() failure test result * * @v text Textual representation * @v file Test code file * @v line Test code line */ static void inet_aton_fail_okx ( const char *text, const char *file, unsigned int line ) { struct in_addr actual; /* Attempt to parse address */ okx ( inet_aton ( text, &actual ) == 0, file, line ); } #define inet_aton_fail_ok( text ) \ inet_aton_fail_okx ( text, __FILE__, __LINE__ ) /** * Report an ipv4_route() test result * * @v dest Destination address * @v scope Destination scope test network device, or NULL * @v next Expected next hop address (on success) * @v egress Expected egress device, or NULL to expect failure * @v src Expected source address (on success) * @v bcast Expected broadcast packet (on success) * @v file Test code file * @v line Test code line */ static void ipv4_route_okx ( const char *dest, struct testnet *scope, const char *next, struct testnet *egress, const char *src, int bcast, const char *file, unsigned int line ) { struct ipv4_miniroute *miniroute; struct in_addr in_dest; struct in_addr in_src; struct in_addr in_next; struct in_addr actual; unsigned int scope_id; /* Sanity checks */ assert ( ( scope == NULL ) || ( scope->netdev != NULL ) ); assert ( ( egress == NULL ) == ( src == NULL ) ); /* Parse addresses */ okx ( inet_aton ( dest, &in_dest ) != 0, file, line ); if ( src ) okx ( inet_aton ( src, &in_src ) != 0, file, line ); if ( next ) { okx ( inet_aton ( next, &in_next ) != 0, file, line ); } else { in_next.s_addr = in_dest.s_addr; } /* Perform routing */ actual.s_addr = in_dest.s_addr; scope_id = ( scope ? scope->netdev->scope_id : 0 ); miniroute = ipv4_route ( scope_id, &actual ); /* Validate result */ if ( src ) { /* Check that a route was found */ okx ( miniroute != NULL, file, line ); DBG ( "ipv4_route ( %s, %s ) = %s", ( scope ? scope->dev.name : "<any>" ), dest, inet_ntoa ( actual ) ); DBG ( " from %s via %s\n", inet_ntoa ( miniroute->address ), egress->dev.name ); /* Check that expected network device was used */ okx ( miniroute->netdev == egress->netdev, file, line ); /* Check that expected source address was used */ okx ( miniroute->address.s_addr == in_src.s_addr, file, line ); /* Check that expected next hop address was used */ okx ( actual.s_addr == in_next.s_addr, file, line ); /* Check that expected broadcast choice was used */ okx ( ( ! ( ( ~actual.s_addr ) & miniroute->hostmask.s_addr ) ) == ( !! bcast ), file, line ); } else { /* Routing is expected to fail */ okx ( miniroute == NULL, file, line ); DBG ( "ipv4_route ( %s, %s ) = <unreachable>\n", ( scope ? scope->dev.name : "<any>" ), dest ); } } #define ipv4_route_ok( dest, scope, next, egress, src, bcast ) \ ipv4_route_okx ( dest, scope, next, egress, src, bcast, \ __FILE__, __LINE__ ) /** net0: Single address and gateway (DHCP assignment) */ TESTNET ( net0, "52:54:00:59:ba:c9", { "dhcp/ip", "192.168.0.1" }, { "dhcp/netmask", "255.255.255.0" }, { "dhcp/gateway", "192.168.0.254" } ); /** net1: Single address and gateway (DHCP assignment) */ TESTNET ( net1, "52:54:00:1a:db:95", { "dhcp/ip", "192.168.0.2" }, { "dhcp/netmask", "255.255.255.0" }, { "dhcp/gateway", "192.168.0.254" } ); /** net2: Small /31 subnet mask */ TESTNET ( net2, "52:54:00:f9:ee:21", { "ip", "10.31.31.0" }, { "netmask", "255.255.255.254" }, { "gateway", "10.31.31.1" } ); /** net3: Small /32 subnet mask */ TESTNET ( net3, "52:54:00:4a:88:ec", { "ip", "10.32.32.32" }, { "netmask", "255.255.255.255" }, { "gateway", "192.168.32.254" } ); /** net4: Local subnet with no gateway */ TESTNET ( net4, "52:54:00:68:ad:cd", { "ip", "192.168.86.1" }, { "netmask", "255.255.240.0" } ); /** net5: Static routes */ TESTNET ( net5, "52:54:00:b0:d5:07", { "ip", "10.42.0.1" }, { "netmask", "255.255.0.0" }, { "gateway", "10.42.0.254" /* should be ignored */ }, { "static-routes", "19:0a:2b:2b:80:0a:2a:2b:2b:" /* 10.43.43.128/25 via 10.42.43.43 */ "10:c0:a8:0a:2a:c0:a8:" /* 192.168.0.0/16 via 10.42.192.168 */ "18:c0:a8:00:00:00:00:00:" /* 192.168.0.0/24 on-link */ "00:0a:2a:01:01" /* default via 10.42.1.1 */ } ); /** * Perform IPv4 self-tests * */ static void ipv4_test_exec ( void ) { /* Address testing macros */ ok ( IN_IS_CLASSA ( IPV4 ( 10, 0, 0, 1 ) ) ); ok ( ! IN_IS_CLASSB ( IPV4 ( 10, 0, 0, 1 ) ) ); ok ( ! IN_IS_CLASSC ( IPV4 ( 10, 0, 0, 1 ) ) ); ok ( ! IN_IS_CLASSA ( IPV4 ( 172, 16, 0, 1 ) ) ); ok ( IN_IS_CLASSB ( IPV4 ( 172, 16, 0, 1 ) ) ); ok ( ! IN_IS_CLASSC ( IPV4 ( 172, 16, 0, 1 ) ) ); ok ( ! IN_IS_CLASSA ( IPV4 ( 192, 168, 0, 1 ) ) ); ok ( ! IN_IS_CLASSB ( IPV4 ( 192, 168, 0, 1 ) ) ); ok ( IN_IS_CLASSC ( IPV4 ( 192, 168, 0, 1 ) ) ); ok ( ! IN_IS_MULTICAST ( IPV4 ( 127, 0, 0, 1 ) ) ); ok ( ! IN_IS_MULTICAST ( IPV4 ( 8, 8, 8, 8 ) ) ); ok ( ! IN_IS_MULTICAST ( IPV4 ( 0, 0, 0, 0 ) ) ); ok ( ! IN_IS_MULTICAST ( IPV4 ( 223, 0, 0, 1 ) ) ); ok ( ! IN_IS_MULTICAST ( IPV4 ( 240, 0, 0, 1 ) ) ); ok ( IN_IS_MULTICAST ( IPV4 ( 224, 0, 0, 1 ) ) ); ok ( IN_IS_MULTICAST ( IPV4 ( 231, 89, 0, 2 ) ) ); ok ( IN_IS_MULTICAST ( IPV4 ( 239, 6, 1, 17 ) ) ); /* inet_ntoa() tests */ inet_ntoa_ok ( IPV4 ( 127, 0, 0, 1 ), "127.0.0.1" ); inet_ntoa_ok ( IPV4 ( 0, 0, 0, 0 ), "0.0.0.0" ); inet_ntoa_ok ( IPV4 ( 255, 255, 255, 255 ), "255.255.255.255" ); inet_ntoa_ok ( IPV4 ( 212, 13, 204, 60 ), "212.13.204.60" ); /* inet_aton() tests */ inet_aton_ok ( "212.13.204.60", IPV4 ( 212, 13, 204, 60 ) ); inet_aton_ok ( "127.0.0.1", IPV4 ( 127, 0, 0, 1 ) ); /* inet_aton() failure tests */ inet_aton_fail_ok ( "256.0.0.1" ); /* Byte out of range */ inet_aton_fail_ok ( "212.13.204.60.1" ); /* Too long */ inet_aton_fail_ok ( "127.0.0" ); /* Too short */ inet_aton_fail_ok ( "1.2.3.a" ); /* Invalid characters */ inet_aton_fail_ok ( "127.0..1" ); /* Missing bytes */ /* Single address and gateway */ testnet_ok ( &net0 ); ipv4_route_ok ( "192.168.0.10", NULL, "192.168.0.10", &net0, "192.168.0.1", 0 ); ipv4_route_ok ( "10.0.0.6", NULL, "192.168.0.254", &net0, "192.168.0.1", 0 ); ipv4_route_ok ( "192.168.0.255", NULL, "192.168.0.255", &net0, "192.168.0.1", 1 ); testnet_remove_ok ( &net0 ); /* Overridden DHCP-assigned address */ testnet_ok ( &net1 ); ipv4_route_ok ( "192.168.1.3", NULL, "192.168.0.254", &net1, "192.168.0.2", 0 ); testnet_set_ok ( &net1, "ip", "192.168.1.2" ); ipv4_route_ok ( "192.168.1.3", NULL, "192.168.1.3", &net1, "192.168.1.2", 0 ); testnet_remove_ok ( &net1 ); /* Small /31 subnet */ testnet_ok ( &net2 ); ipv4_route_ok ( "10.31.31.1", NULL, "10.31.31.1", &net2, "10.31.31.0", 0 ); ipv4_route_ok ( "212.13.204.60", NULL, "10.31.31.1", &net2, "10.31.31.0", 0 ); testnet_remove_ok ( &net2 ); /* Small /32 subnet */ testnet_ok ( &net3 ); ipv4_route_ok ( "10.32.32.31", NULL, "192.168.32.254", &net3, "10.32.32.32", 0 ); ipv4_route_ok ( "8.8.8.8", NULL, "192.168.32.254", &net3, "10.32.32.32", 0 ); testnet_remove_ok ( &net3 ); /* No gateway */ testnet_ok ( &net4 ); ipv4_route_ok ( "192.168.87.1", NULL, "192.168.87.1", &net4, "192.168.86.1", 0 ); ipv4_route_ok ( "192.168.96.1", NULL, NULL, NULL, NULL, 0 ); testnet_remove_ok ( &net4 ); /* Multiple interfaces */ testnet_ok ( &net0 ); testnet_ok ( &net1 ); testnet_ok ( &net2 ); testnet_close_ok ( &net1 ); ipv4_route_ok ( "192.168.0.9", NULL, "192.168.0.9", &net0, "192.168.0.1", 0 ); ipv4_route_ok ( "10.31.31.1", NULL, "10.31.31.1", &net2, "10.31.31.0", 0 ); testnet_close_ok ( &net0 ); testnet_open_ok ( &net1 ); ipv4_route_ok ( "192.168.0.9", NULL, "192.168.0.9", &net1, "192.168.0.2", 0 ); ipv4_route_ok ( "10.31.31.1", NULL, "10.31.31.1", &net2, "10.31.31.0", 0 ); testnet_close_ok ( &net2 ); ipv4_route_ok ( "8.8.8.8", NULL, "192.168.0.254", &net1, "192.168.0.2", 0 ); testnet_close_ok ( &net1 ); testnet_open_ok ( &net0 ); ipv4_route_ok ( "8.8.8.8", NULL, "192.168.0.254", &net0, "192.168.0.1", 0 ); testnet_close_ok ( &net0 ); testnet_open_ok ( &net2 ); ipv4_route_ok ( "8.8.8.8", NULL, "10.31.31.1", &net2, "10.31.31.0", 0 ); testnet_remove_ok ( &net2 ); testnet_remove_ok ( &net1 ); testnet_remove_ok ( &net0 ); /* Static routes */ testnet_ok ( &net5 ); ipv4_route_ok ( "10.42.99.0", NULL, "10.42.99.0", &net5, "10.42.0.1", 0 ); ipv4_route_ok ( "8.8.8.8", NULL, "10.42.1.1", &net5, "10.42.0.1", 0 ); ipv4_route_ok ( "10.43.43.1", NULL, "10.42.1.1", &net5, "10.42.0.1", 0 ); ipv4_route_ok ( "10.43.43.129", NULL, "10.42.43.43", &net5, "10.42.0.1", 0 ); ipv4_route_ok ( "192.168.54.8", NULL, "10.42.192.168", &net5, "10.42.0.1", 0 ); ipv4_route_ok ( "192.168.0.8", NULL, "192.168.0.8", &net5, "10.42.0.1", 0 ); ipv4_route_ok ( "192.168.0.255", NULL, "192.168.0.255", &net5, "10.42.0.1", 1 ); testnet_remove_ok ( &net5 ); } /** IPv4 self-test */ struct self_test ipv4_test __self_test = { .name = "ipv4", .exec = ipv4_test_exec, };