diff options
Diffstat (limited to 'test/packetdrill/packet_to_string_test.c')
-rw-r--r-- | test/packetdrill/packet_to_string_test.c | 301 |
1 files changed, 301 insertions, 0 deletions
diff --git a/test/packetdrill/packet_to_string_test.c b/test/packetdrill/packet_to_string_test.c new file mode 100644 index 0000000..814cddb --- /dev/null +++ b/test/packetdrill/packet_to_string_test.c @@ -0,0 +1,301 @@ +/* + * Copyright 2013 Google Inc. + * + * 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. + */ +/* + * Author: ncardwell@google.com (Neal Cardwell) + * + * Test for generating human-readable representations of IP packets. + */ + +#include "packet_to_string.h" + +#include <stdlib.h> +#include <string.h> +#include "assert.h" +#include "packet_parser.h" + +static void test_tcp_ipv4_packet_to_string(void) +{ + /* An IPv4/GRE/IPv4/TCP packet. */ + u8 data[] = { + /* IPv4: */ + 0x45, 0x00, 0x00, 0x54, 0x00, 0x00, 0x00, 0x00, + 0xff, 0x2f, 0xb5, 0x75, 0x02, 0x02, 0x02, 0x02, + 0x01, 0x01, 0x01, 0x01, + /* GRE: */ + 0x00, 0x00, 0x08, 0x00, + /* IPv4, TCP: */ + 0x45, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x00, 0x00, + 0xff, 0x06, 0x39, 0x11, 0xc0, 0x00, 0x02, 0x01, + 0xc0, 0xa8, 0x00, 0x01, 0xcf, 0x3f, 0x1f, 0x90, + 0x00, 0x00, 0x00, 0x01, 0x83, 0x4d, 0xa5, 0x5b, + 0xa0, 0x10, 0x01, 0x01, 0xdb, 0x2d, 0x00, 0x00, + 0x05, 0x0a, 0x83, 0x4d, 0xab, 0x03, 0x83, 0x4d, + 0xb0, 0xab, 0x08, 0x0a, 0x00, 0x00, 0x01, 0x2c, + 0x60, 0xc2, 0x18, 0x20 + }; + + struct packet *packet = packet_new(sizeof(data)); + + /* Populate and parse a packet */ + memcpy(packet->buffer, data, sizeof(data)); + char *error = NULL; + enum packet_parse_result_t result = + parse_packet(packet, sizeof(data), PACKET_LAYER_3_IP, + &error); + assert(result == PACKET_OK); + assert(error == NULL); + + int status = 0; + char *dump = NULL, *expected = NULL; + + /* Test a DUMP_SHORT dump */ + status = packet_to_string(packet, DUMP_SHORT, &dump, &error); + assert(status == STATUS_OK); + assert(error == NULL); + printf("dump = '%s'\n", dump); + expected = + "ipv4 2.2.2.2 > 1.1.1.1: gre flags 0x0 proto 0x0800: " + ". 1:1(0) ack 2202903899 win 257 " + "<sack 2202905347:2202906795,TS val 300 ecr 1623332896>"; + assert(strcmp(dump, expected) == 0); + free(dump); + + /* Test a DUMP_FULL dump */ + status = packet_to_string(packet, DUMP_FULL, &dump, &error); + assert(status == STATUS_OK); + assert(error == NULL); + printf("dump = '%s'\n", dump); + expected = + "ipv4 2.2.2.2 > 1.1.1.1: gre flags 0x0 proto 0x0800: " + "192.0.2.1:53055 > 192.168.0.1:8080 " + ". 1:1(0) ack 2202903899 win 257 " + "<sack 2202905347:2202906795,TS val 300 ecr 1623332896>"; + assert(strcmp(dump, expected) == 0); + free(dump); + + /* Test a DUMP_VERBOSE dump */ + status = packet_to_string(packet, DUMP_VERBOSE, &dump, &error); + assert(status == STATUS_OK); + assert(error == NULL); + printf("dump = '%s'\n", dump); + expected = + "ipv4 2.2.2.2 > 1.1.1.1: gre flags 0x0 proto 0x0800: " + "192.0.2.1:53055 > 192.168.0.1:8080 " + ". 1:1(0) ack 2202903899 win 257 " + "<sack 2202905347:2202906795,TS val 300 ecr 1623332896>" + "\n" + "0x0000: 45 00 00 54 00 00 00 00 ff 2f b5 75 02 02 02 02 " "\n" + "0x0010: 01 01 01 01 00 00 08 00 45 00 00 3c 00 00 00 00 " "\n" + "0x0020: ff 06 39 11 c0 00 02 01 c0 a8 00 01 cf 3f 1f 90 " "\n" + "0x0030: 00 00 00 01 83 4d a5 5b a0 10 01 01 db 2d 00 00 " "\n" + "0x0040: 05 0a 83 4d ab 03 83 4d b0 ab 08 0a 00 00 01 2c " "\n" + "0x0050: 60 c2 18 20 " "\n"; + assert(strcmp(dump, expected) == 0); + free(dump); + + packet_free(packet); +} + +static void test_tcp_ipv6_packet_to_string(void) +{ + /* An IPv6/GRE/TCP/IPv6 packet. */ + u8 data[] = { + /* IPv6: */ + 0x60, 0x00, 0x00, 0x00, 0x00, 0x4c, 0x2f, 0xff, + 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x22, 0x22, + 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x11, + /* GRE: */ + 0x00, 0x00, 0x86, 0xdd, + /* IPv6, TCP: */ + 0x60, 0x00, 0x00, 0x00, 0x00, 0x20, 0x06, 0xff, + 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, + 0xfd, 0x3d, 0xfa, 0x7b, 0xd1, 0x7d, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, + 0xd3, 0xe2, 0x1f, 0x90, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x80, 0x02, 0x80, 0x18, + 0x06, 0x60, 0x00, 0x00, 0x02, 0x04, 0x03, 0xe8, + 0x04, 0x02, 0x01, 0x01, 0x01, 0x03, 0x03, 0x07, + }; + + struct packet *packet = packet_new(sizeof(data)); + + /* Populate and parse a packet */ + memcpy(packet->buffer, data, sizeof(data)); + char *error = NULL; + enum packet_parse_result_t result = + parse_packet(packet, sizeof(data), PACKET_LAYER_3_IP, + &error); + assert(result == PACKET_OK); + assert(error == NULL); + + int status = 0; + char *dump = NULL, *expected = NULL; + + /* Test a DUMP_SHORT dump */ + status = packet_to_string(packet, DUMP_SHORT, &dump, &error); + assert(status == STATUS_OK); + assert(error == NULL); + printf("dump = '%s'\n", dump); + expected = + "ipv6 2::2222 > 1::1111: gre flags 0x0 proto 0x86dd: " + "S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>"; + assert(strcmp(dump, expected) == 0); + free(dump); + + /* Test a DUMP_FULL dump */ + status = packet_to_string(packet, DUMP_FULL, &dump, &error); + assert(status == STATUS_OK); + assert(error == NULL); + printf("dump = '%s'\n", dump); + expected = + "ipv6 2::2222 > 1::1111: gre flags 0x0 proto 0x86dd: " + "2001:db8::1:54242 > fd3d:fa7b:d17d::1:8080 " + "S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>"; + assert(strcmp(dump, expected) == 0); + free(dump); + + /* Test a DUMP_VERBOSE dump */ + status = packet_to_string(packet, DUMP_VERBOSE, &dump, &error); + assert(status == STATUS_OK); + assert(error == NULL); + printf("dump = '%s'\n", dump); + expected = + "ipv6 2::2222 > 1::1111: gre flags 0x0 proto 0x86dd: " + "2001:db8::1:54242 > fd3d:fa7b:d17d::1:8080 " + "S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>\n" + "0x0000: 60 00 00 00 00 4c 2f ff 00 02 00 00 00 00 00 00 " "\n" + "0x0010: 00 00 00 00 00 00 22 22 00 01 00 00 00 00 00 00 " "\n" + "0x0020: 00 00 00 00 00 00 11 11 00 00 86 dd 60 00 00 00 " "\n" + "0x0030: 00 20 06 ff 20 01 0d b8 00 00 00 00 00 00 00 00 " "\n" + "0x0040: 00 00 00 01 fd 3d fa 7b d1 7d 00 00 00 00 00 00 " "\n" + "0x0050: 00 00 00 01 d3 e2 1f 90 00 00 00 00 00 00 00 00 " "\n" + "0x0060: 80 02 80 18 06 60 00 00 02 04 03 e8 04 02 01 01 " "\n" + "0x0070: 01 03 03 07 " "\n"; + assert(strcmp(dump, expected) == 0); + free(dump); + + packet_free(packet); +} + +static void test_gre_mpls_tcp_ipv4_packet_to_string(void) +{ + /* An IPv4/GRE/MPLS/IPv4/TCP packet. */ + u8 data[] = { + /* IPv4: */ + 0x45, 0x00, 0x00, 0x54, 0x00, 0x00, 0x40, 0x00, + 0x40, 0x2f, 0xb7, 0xcf, 0xc0, 0xa8, 0x00, 0x01, + 0xc0, 0x00, 0x02, 0x02, + /* GRE: */ + 0x00, 0x00, 0x88, 0x47, + /* MPLS: */ + 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, + /* IPv4, TCP: */ + 0x45, 0x00, 0x00, 0x34, 0x86, 0x99, 0x40, 0x00, + 0x40, 0x06, 0x31, 0x80, 0xc0, 0xa8, 0x00, 0x01, + 0xc0, 0x00, 0x02, 0x01, 0x1f, 0x90, 0xdb, 0xcc, + 0x7b, 0x81, 0xc5, 0x7c, 0x00, 0x00, 0x00, 0x01, + 0x80, 0x11, 0x01, 0xc5, 0xa6, 0xa6, 0x00, 0x00, + 0x01, 0x01, 0x08, 0x0a, 0x07, 0x02, 0x08, 0x43, + 0x00, 0x00, 0x00, 0x05 + }; + + struct packet *packet = packet_new(sizeof(data)); + + /* Populate and parse a packet */ + memcpy(packet->buffer, data, sizeof(data)); + char *error = NULL; + enum packet_parse_result_t result = + parse_packet(packet, sizeof(data), PACKET_LAYER_3_IP, + &error); + assert(result == PACKET_OK); + assert(error == NULL); + + int status = 0; + char *dump = NULL, *expected = NULL; + + /* Test a DUMP_FULL dump */ + status = packet_to_string(packet, DUMP_FULL, &dump, &error); + assert(status == STATUS_OK); + assert(error == NULL); + printf("dump = '%s'\n", dump); + expected = + "ipv4 192.168.0.1 > 192.0.2.2: gre flags 0x0 proto 0x8847: " + "mpls (label 0, tc 0, ttl 0) " + "(label 1048575, tc 7, [S], ttl 255): " + "192.168.0.1:8080 > 192.0.2.1:56268 " + "F. 2072102268:2072102268(0) ack 1 win 453 " + "<nop,nop,TS val 117573699 ecr 5>"; + assert(strcmp(dump, expected) == 0); + free(dump); +} + +static void test_tcp_md5_option_to_string(void) +{ + /* An IPv4/TCP packet. */ + u8 data[] = { + /* IPv4, TCP: */ + 0x45, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x00, 0x00, + 0xff, 0x06, 0x89, 0x56, 0xc0, 0x00, 0x02, 0x01, + 0xc0, 0xa8, 0xaf, 0xbb, 0x8a, 0x6f, 0x1f, 0x90, + 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, + 0xa0, 0x02, 0x01, 0x00, 0x36, 0x14, 0x00, 0x00, + 0x13, 0x12, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, + 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, + 0x0e, 0x0f, 0x01, 0x01 + }; + + struct packet *packet = packet_new(sizeof(data)); + + /* Populate and parse a packet */ + memcpy(packet->buffer, data, sizeof(data)); + char *error = NULL; + enum packet_parse_result_t result = + parse_packet(packet, sizeof(data), PACKET_LAYER_3_IP, + &error); + assert(result == PACKET_OK); + assert(error == NULL); + + int status = 0; + char *dump = NULL, *expected = NULL; + + /* Test a DUMP_SHORT dump */ + status = packet_to_string(packet, DUMP_SHORT, &dump, &error); + assert(status == STATUS_OK); + assert(error == NULL); + printf("dump = '%s'\n", dump); + expected = + "S 1:1(0) win 256 " + "<md5 000102030405060708090a0b0c0d0e0f,nop,nop>"; + assert(strcmp(dump, expected) == 0); + free(dump); + + packet_free(packet); +} + +int main(void) +{ + test_tcp_ipv4_packet_to_string(); + test_tcp_ipv6_packet_to_string(); + test_gre_mpls_tcp_ipv4_packet_to_string(); + test_tcp_md5_option_to_string(); + return 0; +} |