diff options
author | Phil Sutter <phil@nwl.cc> | 2022-03-16 17:14:07 +0100 |
---|---|---|
committer | Phil Sutter <phil@nwl.cc> | 2022-03-17 09:55:48 +0100 |
commit | b1aee6b2238794446feba41778f88703784560f7 (patch) | |
tree | 13be8d334a7e9a2212e7a468124003fc485d23b1 /iptables/xshared.c | |
parent | b555bfed542635259c489596630a75fce50aab1b (diff) |
nft: Reject standard targets as chain names when restoring
Reuse parse_chain() called from do_parse() for '-N' and rename it for a
better description of what it does.
Note that by itself, this patch will likely kill iptables-restore
performance for big rulesets due to the extra extension lookup for chain
lines. A following patch announcing those chains to libxtables will
alleviate that.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Reviewed-by: Florian Westphal <fw@strlen.de>
Diffstat (limited to 'iptables/xshared.c')
-rw-r--r-- | iptables/xshared.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/iptables/xshared.c b/iptables/xshared.c index 43321d3b..00828c8a 100644 --- a/iptables/xshared.c +++ b/iptables/xshared.c @@ -1031,7 +1031,7 @@ set_option(unsigned int *options, unsigned int option, u_int16_t *invflg, } } -void parse_chain(const char *chainname) +void assert_valid_chain_name(const char *chainname) { const char *ptr; @@ -1412,7 +1412,7 @@ void do_parse(int argc, char *argv[], break; case 'N': - parse_chain(optarg); + assert_valid_chain_name(optarg); add_command(&p->command, CMD_NEW_CHAIN, CMD_NONE, invert); p->chain = optarg; |