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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 14:18:53 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 14:18:53 +0000 |
commit | a0e0018c9a7ef5ce7f6d2c3ae16aecbbd16a8f67 (patch) | |
tree | 8feaf1a1932871b139b3b30be4c09c66489918be /tc/m_connmark.c | |
parent | Initial commit. (diff) | |
download | iproute2-upstream.tar.xz iproute2-upstream.zip |
Adding upstream version 6.1.0.upstream/6.1.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | tc/m_connmark.c | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/tc/m_connmark.c b/tc/m_connmark.c new file mode 100644 index 0000000..640bba9 --- /dev/null +++ b/tc/m_connmark.c @@ -0,0 +1,149 @@ +/* + * m_connmark.c Connection tracking marking import + * + * Copyright (c) 2011 Felix Fietkau <nbd@openwrt.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope 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, see <http://www.gnu.org/licenses>. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <string.h> +#include "utils.h" +#include "tc_util.h" +#include <linux/tc_act/tc_connmark.h> + +static void +explain(void) +{ + fprintf(stderr, + "Usage: ... connmark [zone ZONE] [CONTROL] [index <INDEX>]\n" + "where :\n" + "\tZONE is the conntrack zone\n" + "\tCONTROL := reclassify | pipe | drop | continue | ok |\n" + "\t goto chain <CHAIN_INDEX>\n"); +} + +static void +usage(void) +{ + explain(); + exit(-1); +} + +static int +parse_connmark(struct action_util *a, int *argc_p, char ***argv_p, int tca_id, + struct nlmsghdr *n) +{ + struct tc_connmark sel = {}; + char **argv = *argv_p; + int argc = *argc_p; + int ok = 0; + struct rtattr *tail; + + while (argc > 0) { + if (matches(*argv, "connmark") == 0) { + ok = 1; + argc--; + argv++; + } else if (matches(*argv, "help") == 0) { + usage(); + } else { + break; + } + + } + + if (!ok) { + explain(); + return -1; + } + + if (argc) { + if (matches(*argv, "zone") == 0) { + NEXT_ARG(); + if (get_u16(&sel.zone, *argv, 10)) { + fprintf(stderr, "connmark: Illegal \"zone\"\n"); + return -1; + } + argc--; + argv++; + } + } + + parse_action_control_dflt(&argc, &argv, &sel.action, false, TC_ACT_PIPE); + + if (argc) { + if (matches(*argv, "index") == 0) { + NEXT_ARG(); + if (get_u32(&sel.index, *argv, 10)) { + fprintf(stderr, "connmark: Illegal \"index\"\n"); + return -1; + } + argc--; + argv++; + } + } + + tail = addattr_nest(n, MAX_MSG, tca_id); + addattr_l(n, MAX_MSG, TCA_CONNMARK_PARMS, &sel, sizeof(sel)); + addattr_nest_end(n, tail); + + *argc_p = argc; + *argv_p = argv; + return 0; +} + +static int print_connmark(struct action_util *au, FILE *f, struct rtattr *arg) +{ + struct rtattr *tb[TCA_CONNMARK_MAX + 1]; + struct tc_connmark *ci; + + print_string(PRINT_ANY, "kind", "%s ", "connmark"); + if (arg == NULL) + return 0; + + parse_rtattr_nested(tb, TCA_CONNMARK_MAX, arg); + if (tb[TCA_CONNMARK_PARMS] == NULL) { + fprintf(stderr, "Missing connmark parameters\n"); + return -1; + } + + ci = RTA_DATA(tb[TCA_CONNMARK_PARMS]); + + print_uint(PRINT_ANY, "zone", "zone %u", ci->zone); + print_action_control(f, " ", ci->action, ""); + + print_nl(); + print_uint(PRINT_ANY, "index", "\t index %u", ci->index); + print_int(PRINT_ANY, "ref", " ref %d", ci->refcnt); + print_int(PRINT_ANY, "bind", " bind %d", ci->bindcnt); + + if (show_stats) { + if (tb[TCA_CONNMARK_TM]) { + struct tcf_t *tm = RTA_DATA(tb[TCA_CONNMARK_TM]); + + print_tm(f, tm); + } + } + print_nl(); + + return 0; +} + +struct action_util connmark_action_util = { + .id = "connmark", + .parse_aopt = parse_connmark, + .print_aopt = print_connmark, +}; |