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_icmp.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_icmp.c')
| -rw-r--r-- | extensions/libct_proto_icmp.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/extensions/libct_proto_icmp.c b/extensions/libct_proto_icmp.c index 7fc82bd..ec52c39 100644 --- a/extensions/libct_proto_icmp.c +++ b/extensions/libct_proto_icmp.c @@ -102,6 +102,13 @@ static int parse(char c, return 1; } +static const struct ct_print_opts icmp_print_opts[] = { + { "--icmp-type", ATTR_ICMP_TYPE, CT_ATTR_TYPE_U8, 0, 0 }, + { "--icmp-code", ATTR_ICMP_CODE, CT_ATTR_TYPE_U8, 0, 0 }, + { "--icmp-id", ATTR_ICMP_ID, CT_ATTR_TYPE_BE16, 0, 0 }, + {} +}; + static void final_check(unsigned int flags, unsigned int cmd, struct nf_conntrack *ct) @@ -117,6 +124,7 @@ static struct ctproto_handler icmp = { .protonum = IPPROTO_ICMP, .parse_opts = parse, .final_check = final_check, + .print_opts = icmp_print_opts, .help = help, .opts = opts, .version = VERSION, |