TError TNlCgFilter::Remove(const TNlLink &link) { TError error = TError::Success(); struct rtnl_cls *cls; int ret; cls = rtnl_cls_alloc(); if (!cls) return TError(EError::Unknown, std::string("Unable to allocate filter object")); rtnl_tc_set_ifindex(TC_CAST(cls), link.GetIndex()); ret = rtnl_tc_set_kind(TC_CAST(cls), FilterType); if (ret < 0) { error = TError(EError::Unknown, std::string("Unable to set filter type: ") + nl_geterror(ret)); goto free_cls; } rtnl_cls_set_prio(cls, FilterPrio); rtnl_cls_set_protocol(cls, 0); rtnl_tc_set_parent(TC_CAST(cls), Parent); link.Dump("remove", cls); ret = rtnl_cls_delete(link.GetSock(), cls, 0); if (ret < 0) error = TError(EError::Unknown, std::string("Unable to remove filter: ") + nl_geterror(ret)); free_cls: rtnl_cls_put(cls); return error; }
/* * Function that adds a new filter and attach it to a hash table * and set next hash table link with hash mask * */ static int u32_add_filter_on_ht_with_hashmask(struct nl_sock *sock, struct rtnl_link *rtnlLink, uint32_t prio, uint32_t keyval, uint32_t keymask, int keyoff, int keyoffmask, uint32_t htid, uint32_t htlink, uint32_t hmask, uint32_t hoffset, struct rtnl_act *act, struct rtnl_act *act2) { struct rtnl_cls *cls; int err; cls=rtnl_cls_alloc(); if (!(cls)) { printf("Can not allocate classifier\n"); nl_socket_free(sock); exit(1); } rtnl_tc_set_link(TC_CAST(cls), rtnlLink); if ((err = rtnl_tc_set_kind(TC_CAST(cls), "u32"))) { printf("Can not set classifier as u32\n"); return 1; } rtnl_cls_set_prio(cls, prio); rtnl_cls_set_protocol(cls, ETH_P_IP); rtnl_tc_set_parent(TC_CAST(cls), TC_HANDLE(0xffff, 0)); if (htid) rtnl_u32_set_hashtable(cls, htid); rtnl_u32_add_key_uint32(cls, keyval, keymask, keyoff, keyoffmask); rtnl_u32_set_hashmask(cls, hmask, hoffset); rtnl_u32_set_link(cls, htlink); rtnl_u32_add_action(cls, act); rtnl_u32_add_action(cls, act2); if ((err = rtnl_cls_add(sock, cls, NLM_F_CREATE))) { printf("Can not add classifier: %s\n", nl_geterror(err)); return -1; } rtnl_cls_put(cls); return 0; }
/* * function that creates a new hash table */ static int u32_add_ht(struct nl_sock *sock, struct rtnl_link *rtnlLink, uint32_t prio, uint32_t htid, uint32_t divisor) { int err; struct rtnl_cls *cls; cls=rtnl_cls_alloc(); if (!(cls)) { printf("Can not allocate classifier\n"); nl_socket_free(sock); exit(1); } rtnl_tc_set_link(TC_CAST(cls), rtnlLink); if ((err = rtnl_tc_set_kind(TC_CAST(cls), "u32"))) { printf("Can not set classifier as u32\n"); return 1; } rtnl_cls_set_prio(cls, prio); rtnl_cls_set_protocol(cls, ETH_P_IP); rtnl_tc_set_parent(TC_CAST(cls), TC_HANDLE(0xffff, 0)); rtnl_u32_set_handle(cls, htid, 0x0, 0x0); //printf("htid: 0x%X\n", htid); rtnl_u32_set_divisor(cls, divisor); if ((err = rtnl_cls_add(sock, cls, NLM_F_CREATE))) { printf("Can not add classifier: %s\n", nl_geterror(err)); return -1; } rtnl_cls_put(cls); return 0; }
int main(int argc, char *argv[]) { struct rtnl_cls *cls; struct rtnl_tc *tc; struct nl_cache *link_cache; int ifindex; sock = nl_cli_alloc_socket(); nl_cli_connect(sock, NETLINK_ROUTE); link_cache = nl_cli_link_alloc_cache(sock); cls = nl_cli_cls_alloc(); tc = (struct rtnl_tc *) cls; for (;;) { int c, optidx = 0; enum { ARG_YES = 257, ARG_INTERACTIVE = 258, ARG_PROTO, ARG_PRIO, }; static struct option long_opts[] = { { "interactive", 0, 0, ARG_INTERACTIVE }, { "yes", 0, 0, ARG_YES }, { "quiet", 0, 0, 'q' }, { "help", 0, 0, 'h' }, { "version", 0, 0, 'v' }, { "dev", 1, 0, 'd' }, { "parent", 1, 0, 'p' }, { "id", 1, 0, 'i' }, { "kind", 1, 0, 'k' }, { "proto", 1, 0, ARG_PROTO }, { "prio", 1, 0, ARG_PRIO }, { 0, 0, 0, 0 } }; c = getopt_long(argc, argv, "qhvd:p:i:k:", long_opts, &optidx); if (c == -1) break; switch (c) { case '?': nl_cli_fatal(EINVAL, "Invalid options"); case ARG_INTERACTIVE: interactive = 1; break; case ARG_YES: default_yes = 1; break; case 'q': quiet = 1; break; case 'h': print_usage(); break; case 'v': nl_cli_print_version(); break; case 'd': nl_cli_tc_parse_dev(tc, link_cache, optarg); break; case 'p': nl_cli_tc_parse_parent(tc, optarg); break; case 'i': nl_cli_tc_parse_handle(tc, optarg, 0); break; case 'k': nl_cli_tc_parse_kind(tc, optarg); break; case ARG_PROTO: nl_cli_cls_parse_proto(cls, optarg); break; case ARG_PRIO: rtnl_cls_set_prio(cls, nl_cli_parse_u32(optarg)); break; } } if ((ifindex = rtnl_tc_get_ifindex(tc))) __delete_link(ifindex, cls); else nl_cache_foreach(link_cache, delete_link, cls); if (!quiet) printf("Deleted %d classs\n", deleted); return 0; }
int main(int argc, char *argv[]) { struct nl_sock *sock; struct rtnl_cls *cls; struct rtnl_tc *tc; struct nl_cache *link_cache; struct nl_dump_params dp = { .dp_type = NL_DUMP_DETAILS, .dp_fd = stdout, }; struct nl_cli_tc_module *tm; struct rtnl_tc_ops *ops; int err, flags = NLM_F_CREATE | NLM_F_EXCL; char *kind, *id = NULL; sock = nl_cli_alloc_socket(); nl_cli_connect(sock, NETLINK_ROUTE); link_cache = nl_cli_link_alloc_cache(sock); cls = nl_cli_cls_alloc(); tc = (struct rtnl_tc *) cls; for (;;) { int c, optidx = 0; enum { ARG_UPDATE = 257, ARG_UPDATE_ONLY = 258, ARG_MTU, ARG_MPU, ARG_OVERHEAD, ARG_LINKTYPE, ARG_PROTO, ARG_PRIO, }; static struct option long_opts[] = { { "quiet", 0, 0, 'q' }, { "help", 0, 0, 'h' }, { "version", 0, 0, 'v' }, { "dev", 1, 0, 'd' }, { "parent", 1, 0, 'p' }, { "id", 1, 0, 'i' }, { "proto", 1, 0, ARG_PROTO }, { "prio", 1, 0, ARG_PRIO }, { "update", 0, 0, ARG_UPDATE }, { "update-only", 0, 0, ARG_UPDATE_ONLY }, { "mtu", 1, 0, ARG_MTU }, { "mpu", 1, 0, ARG_MPU }, { "overhead", 1, 0, ARG_OVERHEAD }, { "linktype", 1, 0, ARG_LINKTYPE }, { 0, 0, 0, 0 } }; c = getopt_long(argc, argv, "+qhvd:p:i:", long_opts, &optidx); if (c == -1) break; switch (c) { case 'q': quiet = 1; break; case 'h': print_usage(); break; case 'v': nl_cli_print_version(); break; case 'd': nl_cli_tc_parse_dev(tc, link_cache, optarg); break; case 'p': nl_cli_tc_parse_parent(tc, optarg); break; case 'i': id = strdup(optarg); break; case ARG_UPDATE: flags = NLM_F_CREATE; break; case ARG_UPDATE_ONLY: flags = 0; break; case ARG_MTU: nl_cli_tc_parse_mtu(tc, optarg); break; case ARG_MPU: nl_cli_tc_parse_mpu(tc, optarg); break; case ARG_OVERHEAD: nl_cli_tc_parse_overhead(tc, optarg); break; case ARG_LINKTYPE: nl_cli_tc_parse_linktype(tc, optarg); break; case ARG_PROTO: nl_cli_cls_parse_proto(cls, optarg); break; case ARG_PRIO: rtnl_cls_set_prio(cls, nl_cli_parse_u32(optarg)); break; } } if (optind >= argc) print_usage(); if (!rtnl_tc_get_ifindex(tc)) nl_cli_fatal(EINVAL, "You must specify a network device (--dev=XXX)"); if (!rtnl_tc_get_parent(tc)) nl_cli_fatal(EINVAL, "You must specify a parent (--parent=XXX)"); if (id) { nl_cli_tc_parse_handle(tc, id, 1); free(id); } kind = argv[optind++]; rtnl_tc_set_kind(tc, kind); if (!(ops = rtnl_tc_get_ops(tc))) nl_cli_fatal(ENOENT, "Unknown classifier \"%s\".", kind); if (!(tm = nl_cli_tc_lookup(ops))) nl_cli_fatal(ENOTSUP, "Classifier type \"%s\" not supported.", kind); tm->tm_parse_argv(tc, argc, argv); if (!quiet) { printf("Adding "); nl_object_dump(OBJ_CAST(cls), &dp); } if ((err = rtnl_cls_add(sock, cls, flags)) < 0) nl_cli_fatal(EINVAL, "Unable to add classifier: %s", nl_geterror(err)); return 0; }
int main(int argc, char *argv[]) { struct rtnl_cls *cls; struct rtnl_tc *tc; struct nl_cache *link_cache; int ifindex; sock = nl_cli_alloc_socket(); nl_cli_connect(sock, NETLINK_ROUTE); link_cache = nl_cli_link_alloc_cache(sock); cls = nl_cli_cls_alloc(); tc = (struct rtnl_tc *) cls; params.dp_fd = stdout; for (;;) { int c, optidx = 0; enum { ARG_DETAILS = 257, ARG_STATS = 258, ARG_PROTO, ARG_PRIO, }; static struct option long_opts[] = { { "details", 0, 0, ARG_DETAILS }, { "stats", 0, 0, ARG_STATS }, { "help", 0, 0, 'h' }, { "version", 0, 0, 'v' }, { "dev", 1, 0, 'd' }, { "parent", 1, 0, 'p' }, { "id", 1, 0, 'i' }, { "kind", 1, 0, 'k' }, { "proto", 1, 0, ARG_PROTO }, { "prio", 1, 0, ARG_PRIO }, { 0, 0, 0, 0 } }; c = getopt_long(argc, argv, "hvd:p:i:k:", long_opts, &optidx); if (c == -1) break; switch (c) { case ARG_DETAILS: params.dp_type = NL_DUMP_DETAILS; break; case ARG_STATS: params.dp_type = NL_DUMP_STATS; break; case 'h': print_usage(); break; case 'v': nl_cli_print_version(); break; case 'd': nl_cli_tc_parse_dev(tc, link_cache, optarg); break; case 'p': nl_cli_tc_parse_parent(tc, optarg); break; case 'i': nl_cli_tc_parse_handle(tc, optarg, 0); break; case 'k': nl_cli_tc_parse_kind(tc, optarg); break; case ARG_PROTO: nl_cli_cls_parse_proto(cls, optarg); break; case ARG_PRIO: rtnl_cls_set_prio(cls, nl_cli_parse_u32(optarg)); break; } } if ((ifindex = rtnl_tc_get_ifindex(tc))) __dump_link(ifindex, cls); else nl_cache_foreach(link_cache, dump_link, cls); return 0; }