From 4a5a5c73b7cfee46a0b1411903cfa0dea532deec Mon Sep 17 00:00:00 2001 From: Jan Engelhardt Date: Fri, 19 Mar 2010 17:32:59 +0100 Subject: netfilter: xtables: slightly better error reporting When extended status codes are available, such as ENOMEM on failed allocations, or subsequent functions (e.g. nf_ct_get_l3proto), passing them up to userspace seems like a good idea compared to just always EINVAL. Signed-off-by: Jan Engelhardt --- net/netfilter/xt_SECMARK.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) (limited to 'net/netfilter/xt_SECMARK.c') diff --git a/net/netfilter/xt_SECMARK.c b/net/netfilter/xt_SECMARK.c index 39098fc9887d..a91d4a7d5a2c 100644 --- a/net/netfilter/xt_SECMARK.c +++ b/net/netfilter/xt_SECMARK.c @@ -50,7 +50,7 @@ secmark_tg(struct sk_buff *skb, const struct xt_target_param *par) return XT_CONTINUE; } -static bool checkentry_selinux(struct xt_secmark_target_info *info) +static int checkentry_selinux(struct xt_secmark_target_info *info) { int err; struct xt_secmark_target_selinux_info *sel = &info->u.sel; @@ -62,27 +62,28 @@ static bool checkentry_selinux(struct xt_secmark_target_info *info) if (err == -EINVAL) pr_info("invalid SELinux context \'%s\'\n", sel->selctx); - return false; + return err; } if (!sel->selsid) { pr_info("unable to map SELinux context \'%s\'\n", sel->selctx); - return false; + return -ENOENT; } err = selinux_secmark_relabel_packet_permission(sel->selsid); if (err) { pr_info("unable to obtain relabeling permission\n"); - return false; + return err; } selinux_secmark_refcount_inc(); - return true; + return 0; } static int secmark_tg_check(const struct xt_tgchk_param *par) { struct xt_secmark_target_info *info = par->targinfo; + int err; if (strcmp(par->table, "mangle") != 0 && strcmp(par->table, "security") != 0) { @@ -99,8 +100,9 @@ static int secmark_tg_check(const struct xt_tgchk_param *par) switch (info->mode) { case SECMARK_MODE_SEL: - if (!checkentry_selinux(info)) - return -EINVAL; + err = checkentry_selinux(info); + if (err <= 0) + return err; break; default: -- cgit