diff options
author | Mikhail Sennikovsky <mikhail.sennikovskii@cloud.ionos.com> | 2020-10-29 12:51:55 +0100 |
---|---|---|
committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2020-11-02 14:45:19 +0100 |
commit | 1c596b9ec8f26ee5e044e033509e656e8376a395 (patch) | |
tree | 4d55a85ca61484b2306e8810451978962b54667f /extensions/libct_proto_tcp.c | |
parent | b07644aac48467adab45a514eea10d6ce2fd44db (diff) |
conntrack: implement save output format
This commit allows dumping conntrack entries in the format
used by the conntrack parameters, aka "save" output format.
This is useful for saving ct entry data to allow applying
it later on.
To enable the "save" output the "-o save" parameter needs
to be passed to the conntrack tool invocation.
[ pablo@netfilter.org: several updates to the original patch ]
Signed-off-by: Mikhail Sennikovsky <mikhail.sennikovskii@cloud.ionos.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'extensions/libct_proto_tcp.c')
-rw-r--r-- | extensions/libct_proto_tcp.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/extensions/libct_proto_tcp.c b/extensions/libct_proto_tcp.c index 8a37a55..3da0dc6 100644 --- a/extensions/libct_proto_tcp.c +++ b/extensions/libct_proto_tcp.c @@ -177,6 +177,15 @@ static int parse_options(char c, return 1; } +static const struct ct_print_opts tcp_print_opts[] = { + { "--sport", ATTR_ORIG_PORT_SRC, CT_ATTR_TYPE_BE16, 0, 0 }, + { "--dport", ATTR_ORIG_PORT_DST, CT_ATTR_TYPE_BE16, 0, 0 }, + { "--reply-port-src", ATTR_REPL_PORT_SRC, CT_ATTR_TYPE_BE16, 0, 0 }, + { "--reply-port-dst", ATTR_REPL_PORT_DST, CT_ATTR_TYPE_BE16, 0, 0 }, + { "--state", ATTR_TCP_STATE, CT_ATTR_TYPE_U8, TCP_CONNTRACK_MAX, tcp_states }, + {}, +}; + #define TCP_VALID_FLAGS_MAX 2 static unsigned int tcp_valid_flags[TCP_VALID_FLAGS_MAX] = { CT_TCP_ORIG_SPORT | CT_TCP_ORIG_DPORT, @@ -228,6 +237,7 @@ static struct ctproto_handler tcp = { .protonum = IPPROTO_TCP, .parse_opts = parse_options, .final_check = final_check, + .print_opts = tcp_print_opts, .help = help, .opts = opts, .version = VERSION, |