diff options
Diffstat (limited to 'extensions/libxt_owner.c')
| -rw-r--r-- | extensions/libxt_owner.c | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/extensions/libxt_owner.c b/extensions/libxt_owner.c index 87e4df31..1702b478 100644 --- a/extensions/libxt_owner.c +++ b/extensions/libxt_owner.c @@ -56,6 +56,7 @@ enum { O_PROCESS, O_SESSION, O_COMM, + O_SUPPL_GROUPS, }; static void owner_mt_help_v0(void) @@ -87,7 +88,8 @@ static void owner_mt_help(void) "owner match options:\n" "[!] --uid-owner userid[-userid] Match local UID\n" "[!] --gid-owner groupid[-groupid] Match local GID\n" -"[!] --socket-exists Match if socket exists\n"); +"[!] --socket-exists Match if socket exists\n" +" --suppl-groups Also match supplementary groups set with --gid-owner\n"); } #define s struct ipt_owner_info @@ -131,6 +133,7 @@ static const struct xt_option_entry owner_mt_opts[] = { .flags = XTOPT_INVERT}, {.name = "socket-exists", .id = O_SOCK_EXISTS, .type = XTTYPE_NONE, .flags = XTOPT_INVERT}, + {.name = "suppl-groups", .id = O_SUPPL_GROUPS, .type = XTTYPE_NONE}, XTOPT_TABLEEND, }; @@ -275,6 +278,11 @@ static void owner_mt_parse(struct xt_option_call *cb) info->invert |= XT_OWNER_SOCKET; info->match |= XT_OWNER_SOCKET; break; + case O_SUPPL_GROUPS: + if (!(info->match & XT_OWNER_GID)) + xtables_param_act(XTF_BAD_VALUE, "owner", "--suppl-groups", "you need to use --gid-owner first"); + info->match |= XT_OWNER_SUPPL_GROUPS; + break; } } @@ -455,9 +463,10 @@ static void owner_mt_print(const void *ip, const struct xt_entry_match *match, { const struct xt_owner_match_info *info = (void *)match->data; - owner_mt_print_item(info, "owner socket exists", XT_OWNER_SOCKET, numeric); - owner_mt_print_item(info, "owner UID match", XT_OWNER_UID, numeric); - owner_mt_print_item(info, "owner GID match", XT_OWNER_GID, numeric); + owner_mt_print_item(info, "owner socket exists", XT_OWNER_SOCKET, numeric); + owner_mt_print_item(info, "owner UID match", XT_OWNER_UID, numeric); + owner_mt_print_item(info, "owner GID match", XT_OWNER_GID, numeric); + owner_mt_print_item(info, "incl. suppl. groups", XT_OWNER_SUPPL_GROUPS, numeric); } static void @@ -487,9 +496,10 @@ static void owner_mt_save(const void *ip, const struct xt_entry_match *match) { const struct xt_owner_match_info *info = (void *)match->data; - owner_mt_print_item(info, "--socket-exists", XT_OWNER_SOCKET, true); - owner_mt_print_item(info, "--uid-owner", XT_OWNER_UID, true); - owner_mt_print_item(info, "--gid-owner", XT_OWNER_GID, true); + owner_mt_print_item(info, "--socket-exists", XT_OWNER_SOCKET, true); + owner_mt_print_item(info, "--uid-owner", XT_OWNER_UID, true); + owner_mt_print_item(info, "--gid-owner", XT_OWNER_GID, true); + owner_mt_print_item(info, "--suppl-groups", XT_OWNER_SUPPL_GROUPS, true); } static int |