diff options
Diffstat (limited to 'test/zdtm/static/netns-dev.c')
| -rw-r--r-- | test/zdtm/static/netns-dev.c | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/test/zdtm/static/netns-dev.c b/test/zdtm/static/netns-dev.c new file mode 100644 index 000000000..fa623aaee --- /dev/null +++ b/test/zdtm/static/netns-dev.c @@ -0,0 +1,220 @@ +#include <unistd.h> +#include <stdlib.h> +#include <dirent.h> + +#include "zdtmtst.h" + +#define LO_CONF_DIR_PATH "/proc/sys/net/ipv4/conf/lo" +#define DEF_CONF_DIR_PATH "/proc/sys/net/ipv4/conf/default" + +char *devconfs[] = { + "accept_local", + "accept_redirects", + "accept_source_route", + "arp_accept", + "arp_announce", + "arp_filter", + "arp_ignore", + "arp_notify", + "bootp_relay", + "disable_policy", + "disable_xfrm", + "force_igmp_version", + "forwarding", + "igmpv2_unsolicited_report_interval", + "igmpv3_unsolicited_report_interval", + "ignore_routes_with_linkdown", + "log_martians", + "mc_forwarding", + "medium_id", + "promote_secondaries", + "proxy_arp", + "proxy_arp_pvlan", + "route_localnet", + "rp_filter", + "secure_redirects", + "send_redirects", + "shared_media", + "src_valid_mark", + "tag", + NULL, +}; + +int rand_limit[] = { + 2, /* accept_local */ + 2, /* accept_redirects */ + 2, /* accept_source_route */ + 2, /* arp_accept */ + 3, /* arp_announce */ + 2, /* arp_filter */ + 9, /* arp_ignore */ + 2, /* arp_notify */ + 2, /* bootp_relay */ + 2, /* disable_policy */ + 2, /* disable_xfrm */ + 0, /* force_igmp_version */ + 2, /* forwarding */ + 0, /* igmpv2_unsolicited_report_interval */ + 0, /* igmpv3_unsolicited_report_interval */ + 2, /* ignore_routes_with_linkdown */ + 2, /* log_martians */ + 2, /* mc_forwarding */ + 0, /* medium_id */ + 2, /* promote_secondaries */ + 2, /* proxy_arp */ + 2, /* proxy_arp_pvlan */ + 2, /* route_localnet */ + 3, /* rp_filter */ + 2, /* secure_redirects */ + 2, /* send_redirects */ + 2, /* shared_media */ + 0, /* src_valid_mark */ + 0, /* tag */ +}; + +struct test_conf { + int ipv4_conf[ARRAY_SIZE(devconfs)]; + int ipv4_conf_rand[ARRAY_SIZE(devconfs)]; + char *dir; +} lo, def; + +static int save_and_set(int opt, FILE *fp, struct test_conf *tc) { + int ret; + int val; + + /* + * Save + */ + ret = fscanf(fp, "%d", &tc->ipv4_conf[opt]); + if (ret != 1) { + pr_perror("fscanf"); + return -1; + } + + ret = fseek(fp, 0, SEEK_SET); + if (ret) { + pr_perror("fseek"); + return -1; + } + + /* + * Set random value + */ + val = (int)lrand48(); + + if (rand_limit[opt] != 0) + tc->ipv4_conf_rand[opt] = val % rand_limit[opt]; + else + tc->ipv4_conf_rand[opt] = val; + + ret = fprintf(fp, "%d", tc->ipv4_conf_rand[opt]); + if (ret < 0) { + pr_perror("fprintf"); + return -1; + } + + return 0; +} + +static int check_and_restore(int opt, FILE *fp, struct test_conf *tc) { + int ret; + int val; + + /* + * Check opt + */ + ret = fscanf(fp, "%d", &val); + if (ret != 1) { + pr_perror("fscanf"); + return -1; + } + + if (val != tc->ipv4_conf_rand[opt]) { + fail("Option \"%s/%s\" changed from %d to %d", + tc->dir, devconfs[opt], tc->ipv4_conf_rand[opt], val); + return -1; + } + + ret = fseek(fp, 0, SEEK_SET); + if (ret) { + pr_perror("fseek"); + return -1; + } + + /* + * Restore opt + */ + ret = fprintf(fp, "%d", tc->ipv4_conf[opt]); + if (ret < 0) { + pr_perror("fprintf"); + return -1; + } + + return 0; +} + +static int for_each_option_do(int (*f)(int opt, FILE *fp, struct test_conf *tc), struct test_conf *tc) { + int ret; + int i; + + for (i = 0; devconfs[i]; i++) { + FILE *fp; + char path[PATH_MAX]; + + ret = snprintf(path, sizeof(path), "%s/%s", tc->dir, devconfs[i]); + if (ret < 0) { + pr_perror("snprintf"); + return -1; + } + + ret = access(path, W_OK); + if (ret < 0) + continue; + + fp = fopen(path, "r+"); + if (fp == NULL) { + pr_perror("fopen"); + return -1; + } + + ret = (*f)(i, fp, tc); + if (ret < 0) + return -1; + + fclose(fp); + } + + return 0; +} + +int main(int argc, char **argv) +{ + int ret; + + lo.dir = LO_CONF_DIR_PATH; + def.dir = DEF_CONF_DIR_PATH; + + test_init(argc, argv); + + ret = for_each_option_do(save_and_set, &lo); + if (ret < 0) + return -1; + + ret = for_each_option_do(save_and_set, &def); + if (ret < 0) + return -1; + + test_daemon(); + test_waitsig(); + + ret = for_each_option_do(check_and_restore, &lo); + if (ret < 0) + return -1; + + ret = for_each_option_do(check_and_restore, &def); + if (ret < 0) + return -1; + + pass(); + return 0; +} |