^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) #define _GNU_SOURCE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) #include <stddef.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <arpa/inet.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <error.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <net/if.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/in.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/netlink.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/rtnetlink.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <netinet/if_ether.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <netinet/ip.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <netinet/ip6.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <netinet/udp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <stdbool.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <stdlib.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <stdio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <sys/ioctl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <sys/socket.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <sys/stat.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <sys/time.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <sys/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <unistd.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #ifndef ETH_MAX_MTU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define ETH_MAX_MTU 0xFFFFU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #ifndef UDP_SEGMENT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define UDP_SEGMENT 103
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #ifndef UDP_MAX_SEGMENTS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define UDP_MAX_SEGMENTS (1 << 6UL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define CONST_MTU_TEST 1500
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define CONST_HDRLEN_V4 (sizeof(struct iphdr) + sizeof(struct udphdr))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define CONST_HDRLEN_V6 (sizeof(struct ip6_hdr) + sizeof(struct udphdr))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define CONST_MSS_V4 (CONST_MTU_TEST - CONST_HDRLEN_V4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define CONST_MSS_V6 (CONST_MTU_TEST - CONST_HDRLEN_V6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #define CONST_MAX_SEGS_V4 (ETH_MAX_MTU / CONST_MSS_V4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #define CONST_MAX_SEGS_V6 (ETH_MAX_MTU / CONST_MSS_V6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) static bool cfg_do_ipv4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) static bool cfg_do_ipv6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) static bool cfg_do_connected;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) static bool cfg_do_connectionless;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) static bool cfg_do_msgmore;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) static bool cfg_do_setsockopt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) static int cfg_specific_test_id = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) static const char cfg_ifname[] = "lo";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) static unsigned short cfg_port = 9000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) static char buf[ETH_MAX_MTU];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) struct testcase {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) int tlen; /* send() buffer size, may exceed mss */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) bool tfail; /* send() call is expected to fail */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) int gso_len; /* mss after applying gso */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) int r_num_mss; /* recv(): number of calls of full mss */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) int r_len_last; /* recv(): size of last non-mss dgram, if any */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) const struct in6_addr addr6 = IN6ADDR_LOOPBACK_INIT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) const struct in_addr addr4 = { .s_addr = __constant_htonl(INADDR_LOOPBACK + 2) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) struct testcase testcases_v4[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) /* no GSO: send a single byte */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) .tlen = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) .r_len_last = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) /* no GSO: send a single MSS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) .tlen = CONST_MSS_V4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) .r_num_mss = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) /* no GSO: send a single MSS + 1B: fail */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) .tlen = CONST_MSS_V4 + 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) .tfail = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) /* send a single MSS: will fall back to no GSO */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) .tlen = CONST_MSS_V4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) .gso_len = CONST_MSS_V4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) .r_num_mss = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) /* send a single MSS + 1B */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) .tlen = CONST_MSS_V4 + 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) .gso_len = CONST_MSS_V4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) .r_num_mss = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) .r_len_last = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) /* send exactly 2 MSS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) .tlen = CONST_MSS_V4 * 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) .gso_len = CONST_MSS_V4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) .r_num_mss = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) /* send 2 MSS + 1B */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) .tlen = (CONST_MSS_V4 * 2) + 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) .gso_len = CONST_MSS_V4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) .r_num_mss = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) .r_len_last = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) /* send MAX segs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) .tlen = (ETH_MAX_MTU / CONST_MSS_V4) * CONST_MSS_V4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) .gso_len = CONST_MSS_V4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) .r_num_mss = (ETH_MAX_MTU / CONST_MSS_V4),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) /* send MAX bytes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) .tlen = ETH_MAX_MTU - CONST_HDRLEN_V4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) .gso_len = CONST_MSS_V4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) .r_num_mss = CONST_MAX_SEGS_V4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) .r_len_last = ETH_MAX_MTU - CONST_HDRLEN_V4 -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) (CONST_MAX_SEGS_V4 * CONST_MSS_V4),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) /* send MAX + 1: fail */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) .tlen = ETH_MAX_MTU - CONST_HDRLEN_V4 + 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) .gso_len = CONST_MSS_V4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) .tfail = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) /* send a single 1B MSS: will fall back to no GSO */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) .tlen = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) .gso_len = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) .r_num_mss = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) /* send 2 1B segments */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) .tlen = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) .gso_len = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) .r_num_mss = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) /* send 2B + 2B + 1B segments */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) .tlen = 5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) .gso_len = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) .r_num_mss = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) .r_len_last = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) /* send max number of min sized segments */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) .tlen = UDP_MAX_SEGMENTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) .gso_len = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) .r_num_mss = UDP_MAX_SEGMENTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) /* send max number + 1 of min sized segments: fail */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) .tlen = UDP_MAX_SEGMENTS + 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) .gso_len = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) .tfail = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) /* EOL */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) #ifndef IP6_MAX_MTU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) #define IP6_MAX_MTU (ETH_MAX_MTU + sizeof(struct ip6_hdr))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) struct testcase testcases_v6[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) /* no GSO: send a single byte */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) .tlen = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) .r_len_last = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) /* no GSO: send a single MSS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) .tlen = CONST_MSS_V6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) .r_num_mss = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) /* no GSO: send a single MSS + 1B: fail */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) .tlen = CONST_MSS_V6 + 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) .tfail = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) /* send a single MSS: will fall back to no GSO */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) .tlen = CONST_MSS_V6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) .gso_len = CONST_MSS_V6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) .r_num_mss = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) /* send a single MSS + 1B */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) .tlen = CONST_MSS_V6 + 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) .gso_len = CONST_MSS_V6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) .r_num_mss = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) .r_len_last = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) /* send exactly 2 MSS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) .tlen = CONST_MSS_V6 * 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) .gso_len = CONST_MSS_V6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) .r_num_mss = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) /* send 2 MSS + 1B */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) .tlen = (CONST_MSS_V6 * 2) + 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) .gso_len = CONST_MSS_V6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) .r_num_mss = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) .r_len_last = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) /* send MAX segs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) .tlen = (IP6_MAX_MTU / CONST_MSS_V6) * CONST_MSS_V6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) .gso_len = CONST_MSS_V6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) .r_num_mss = (IP6_MAX_MTU / CONST_MSS_V6),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) /* send MAX bytes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) .tlen = IP6_MAX_MTU - CONST_HDRLEN_V6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) .gso_len = CONST_MSS_V6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) .r_num_mss = CONST_MAX_SEGS_V6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) .r_len_last = IP6_MAX_MTU - CONST_HDRLEN_V6 -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) (CONST_MAX_SEGS_V6 * CONST_MSS_V6),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) /* send MAX + 1: fail */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) .tlen = IP6_MAX_MTU - CONST_HDRLEN_V6 + 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) .gso_len = CONST_MSS_V6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) .tfail = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) /* send a single 1B MSS: will fall back to no GSO */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) .tlen = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) .gso_len = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) .r_num_mss = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) /* send 2 1B segments */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) .tlen = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) .gso_len = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) .r_num_mss = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) /* send 2B + 2B + 1B segments */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) .tlen = 5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) .gso_len = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) .r_num_mss = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) .r_len_last = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) /* send max number of min sized segments */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) .tlen = UDP_MAX_SEGMENTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) .gso_len = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) .r_num_mss = UDP_MAX_SEGMENTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) /* send max number + 1 of min sized segments: fail */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) .tlen = UDP_MAX_SEGMENTS + 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) .gso_len = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) .tfail = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) /* EOL */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) static unsigned int get_device_mtu(int fd, const char *ifname)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) struct ifreq ifr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) memset(&ifr, 0, sizeof(ifr));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) strcpy(ifr.ifr_name, ifname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) if (ioctl(fd, SIOCGIFMTU, &ifr))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) error(1, errno, "ioctl get mtu");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) return ifr.ifr_mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) static void __set_device_mtu(int fd, const char *ifname, unsigned int mtu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) struct ifreq ifr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) memset(&ifr, 0, sizeof(ifr));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) ifr.ifr_mtu = mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) strcpy(ifr.ifr_name, ifname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) if (ioctl(fd, SIOCSIFMTU, &ifr))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) error(1, errno, "ioctl set mtu");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) static void set_device_mtu(int fd, int mtu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) int val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) val = get_device_mtu(fd, cfg_ifname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) fprintf(stderr, "device mtu (orig): %u\n", val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) __set_device_mtu(fd, cfg_ifname, mtu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) val = get_device_mtu(fd, cfg_ifname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) if (val != mtu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) error(1, 0, "unable to set device mtu to %u\n", val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) fprintf(stderr, "device mtu (test): %u\n", val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) static void set_pmtu_discover(int fd, bool is_ipv4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) int level, name, val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) if (is_ipv4) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) level = SOL_IP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) name = IP_MTU_DISCOVER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) val = IP_PMTUDISC_DO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) level = SOL_IPV6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) name = IPV6_MTU_DISCOVER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) val = IPV6_PMTUDISC_DO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) if (setsockopt(fd, level, name, &val, sizeof(val)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) error(1, errno, "setsockopt path mtu");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) static unsigned int get_path_mtu(int fd, bool is_ipv4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) socklen_t vallen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) unsigned int mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) vallen = sizeof(mtu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) if (is_ipv4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) ret = getsockopt(fd, SOL_IP, IP_MTU, &mtu, &vallen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) ret = getsockopt(fd, SOL_IPV6, IPV6_MTU, &mtu, &vallen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) error(1, errno, "getsockopt mtu");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) fprintf(stderr, "path mtu (read): %u\n", mtu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) return mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) /* very wordy version of system("ip route add dev lo mtu 1500 127.0.0.3/32") */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) static void set_route_mtu(int mtu, bool is_ipv4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) struct nlmsghdr *nh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) struct rtattr *rta;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) struct rtmsg *rt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) char data[NLMSG_ALIGN(sizeof(*nh)) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) NLMSG_ALIGN(sizeof(*rt)) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) NLMSG_ALIGN(RTA_LENGTH(sizeof(addr6))) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) NLMSG_ALIGN(RTA_LENGTH(sizeof(int))) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) NLMSG_ALIGN(RTA_LENGTH(0) + RTA_LENGTH(sizeof(int)))];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) int fd, ret, alen, off = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) alen = is_ipv4 ? sizeof(addr4) : sizeof(addr6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) if (fd == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) error(1, errno, "socket netlink");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) memset(data, 0, sizeof(data));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) nh = (void *)data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) nh->nlmsg_type = RTM_NEWROUTE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) nh->nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) off += NLMSG_ALIGN(sizeof(*nh));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) rt = (void *)(data + off);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) rt->rtm_family = is_ipv4 ? AF_INET : AF_INET6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) rt->rtm_table = RT_TABLE_MAIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) rt->rtm_dst_len = alen << 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) rt->rtm_protocol = RTPROT_BOOT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) rt->rtm_scope = RT_SCOPE_UNIVERSE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) rt->rtm_type = RTN_UNICAST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) off += NLMSG_ALIGN(sizeof(*rt));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) rta = (void *)(data + off);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) rta->rta_type = RTA_DST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) rta->rta_len = RTA_LENGTH(alen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) if (is_ipv4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) memcpy(RTA_DATA(rta), &addr4, alen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) memcpy(RTA_DATA(rta), &addr6, alen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) off += NLMSG_ALIGN(rta->rta_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) rta = (void *)(data + off);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) rta->rta_type = RTA_OIF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) rta->rta_len = RTA_LENGTH(sizeof(int));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) *((int *)(RTA_DATA(rta))) = 1; //if_nametoindex("lo");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) off += NLMSG_ALIGN(rta->rta_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) /* MTU is a subtype in a metrics type */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) rta = (void *)(data + off);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) rta->rta_type = RTA_METRICS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) rta->rta_len = RTA_LENGTH(0) + RTA_LENGTH(sizeof(int));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) off += NLMSG_ALIGN(rta->rta_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) /* now fill MTU subtype. Note that it fits within above rta_len */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) rta = (void *)(((char *) rta) + RTA_LENGTH(0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) rta->rta_type = RTAX_MTU;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) rta->rta_len = RTA_LENGTH(sizeof(int));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) *((int *)(RTA_DATA(rta))) = mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) nh->nlmsg_len = off;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) ret = sendto(fd, data, off, 0, (void *)&nladdr, sizeof(nladdr));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) if (ret != off)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) error(1, errno, "send netlink: %uB != %uB\n", ret, off);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) if (close(fd))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) error(1, errno, "close netlink");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) fprintf(stderr, "route mtu (test): %u\n", mtu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) static bool __send_one(int fd, struct msghdr *msg, int flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) ret = sendmsg(fd, msg, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) if (ret == -1 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) (errno == EMSGSIZE || errno == ENOMEM || errno == EINVAL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) if (ret == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) error(1, errno, "sendmsg");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) if (ret != msg->msg_iov->iov_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) error(1, 0, "sendto: %d != %llu", ret,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) (unsigned long long)msg->msg_iov->iov_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) if (msg->msg_flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) error(1, 0, "sendmsg: return flags 0x%x\n", msg->msg_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) static bool send_one(int fd, int len, int gso_len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) struct sockaddr *addr, socklen_t alen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) char control[CMSG_SPACE(sizeof(uint16_t))] = {0};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) struct msghdr msg = {0};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) struct iovec iov = {0};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) struct cmsghdr *cm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) iov.iov_base = buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) iov.iov_len = len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) msg.msg_iov = &iov;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) msg.msg_iovlen = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) msg.msg_name = addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) msg.msg_namelen = alen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) if (gso_len && !cfg_do_setsockopt) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) msg.msg_control = control;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) msg.msg_controllen = sizeof(control);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) cm = CMSG_FIRSTHDR(&msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) cm->cmsg_level = SOL_UDP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) cm->cmsg_type = UDP_SEGMENT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) cm->cmsg_len = CMSG_LEN(sizeof(uint16_t));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) *((uint16_t *) CMSG_DATA(cm)) = gso_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) /* If MSG_MORE, send 1 byte followed by remainder */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) if (cfg_do_msgmore && len > 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) iov.iov_len = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) if (!__send_one(fd, &msg, MSG_MORE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) error(1, 0, "send 1B failed");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) iov.iov_base++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) iov.iov_len = len - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) return __send_one(fd, &msg, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) static int recv_one(int fd, int flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) ret = recv(fd, buf, sizeof(buf), flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) if (ret == -1 && errno == EAGAIN && (flags & MSG_DONTWAIT))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) if (ret == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) error(1, errno, "recv");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) static void run_one(struct testcase *test, int fdt, int fdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) struct sockaddr *addr, socklen_t alen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) int i, ret, val, mss;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) bool sent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) fprintf(stderr, "ipv%d tx:%d gso:%d %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) addr->sa_family == AF_INET ? 4 : 6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) test->tlen, test->gso_len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) test->tfail ? "(fail)" : "");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) val = test->gso_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) if (cfg_do_setsockopt) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) if (setsockopt(fdt, SOL_UDP, UDP_SEGMENT, &val, sizeof(val)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) error(1, errno, "setsockopt udp segment");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) sent = send_one(fdt, test->tlen, test->gso_len, addr, alen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) if (sent && test->tfail)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) error(1, 0, "send succeeded while expecting failure");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) if (!sent && !test->tfail)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) error(1, 0, "send failed while expecting success");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) if (!sent)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) if (test->gso_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) mss = test->gso_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) mss = addr->sa_family == AF_INET ? CONST_MSS_V4 : CONST_MSS_V6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) /* Recv all full MSS datagrams */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) for (i = 0; i < test->r_num_mss; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) ret = recv_one(fdr, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) if (ret != mss)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) error(1, 0, "recv.%d: %d != %d", i, ret, mss);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) /* Recv the non-full last datagram, if tlen was not a multiple of mss */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) if (test->r_len_last) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) ret = recv_one(fdr, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) if (ret != test->r_len_last)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) error(1, 0, "recv.%d: %d != %d (last)",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) i, ret, test->r_len_last);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) /* Verify received all data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) ret = recv_one(fdr, MSG_DONTWAIT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) error(1, 0, "recv: unexpected datagram");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) static void run_all(int fdt, int fdr, struct sockaddr *addr, socklen_t alen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) struct testcase *tests, *test;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) tests = addr->sa_family == AF_INET ? testcases_v4 : testcases_v6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) for (test = tests; test->tlen; test++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) /* if a specific test is given, then skip all others */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) if (cfg_specific_test_id == -1 ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) cfg_specific_test_id == test - tests)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) run_one(test, fdt, fdr, addr, alen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) static void run_test(struct sockaddr *addr, socklen_t alen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) struct timeval tv = { .tv_usec = 100 * 1000 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) int fdr, fdt, val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) fdr = socket(addr->sa_family, SOCK_DGRAM, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) if (fdr == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) error(1, errno, "socket r");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) if (bind(fdr, addr, alen))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) error(1, errno, "bind");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) /* Have tests fail quickly instead of hang */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) if (setsockopt(fdr, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) error(1, errno, "setsockopt rcv timeout");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) fdt = socket(addr->sa_family, SOCK_DGRAM, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) if (fdt == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) error(1, errno, "socket t");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) /* Do not fragment these datagrams: only succeed if GSO works */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) set_pmtu_discover(fdt, addr->sa_family == AF_INET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) if (cfg_do_connectionless) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) set_device_mtu(fdt, CONST_MTU_TEST);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) run_all(fdt, fdr, addr, alen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) if (cfg_do_connected) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) set_device_mtu(fdt, CONST_MTU_TEST + 100);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) set_route_mtu(CONST_MTU_TEST, addr->sa_family == AF_INET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) if (connect(fdt, addr, alen))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) error(1, errno, "connect");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) val = get_path_mtu(fdt, addr->sa_family == AF_INET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) if (val != CONST_MTU_TEST)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) error(1, 0, "bad path mtu %u\n", val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) run_all(fdt, fdr, addr, 0 /* use connected addr */);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) if (close(fdt))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) error(1, errno, "close t");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) if (close(fdr))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) error(1, errno, "close r");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) static void run_test_v4(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) struct sockaddr_in addr = {0};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) addr.sin_family = AF_INET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) addr.sin_port = htons(cfg_port);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) addr.sin_addr = addr4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) run_test((void *)&addr, sizeof(addr));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) static void run_test_v6(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) struct sockaddr_in6 addr = {0};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) addr.sin6_family = AF_INET6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) addr.sin6_port = htons(cfg_port);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) addr.sin6_addr = addr6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) run_test((void *)&addr, sizeof(addr));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) static void parse_opts(int argc, char **argv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) int c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) while ((c = getopt(argc, argv, "46cCmst:")) != -1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) switch (c) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) case '4':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) cfg_do_ipv4 = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) case '6':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) cfg_do_ipv6 = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) case 'c':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) cfg_do_connected = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) case 'C':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) cfg_do_connectionless = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) case 'm':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) cfg_do_msgmore = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) case 's':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) cfg_do_setsockopt = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) case 't':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) cfg_specific_test_id = strtoul(optarg, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) error(1, 0, "%s: parse error", argv[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) int main(int argc, char **argv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) parse_opts(argc, argv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) if (cfg_do_ipv4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) run_test_v4();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) if (cfg_do_ipv6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) run_test_v6();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) fprintf(stderr, "OK\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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