diff options
| author | Jan Engelhardt <jengelh@computergmbh.de> | 2008-01-31 04:06:38 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-01-31 19:27:43 -0800 |
| commit | edc26f7aaa23591c779d6d6fc833c0c96fbeb3c0 (patch) | |
| tree | 4ba051cb54853003e308f70f69dad58a25a07753 | |
| parent | 37c08387fc31a0fe7a570664c93be4f1c1bc0c94 (diff) | |
[NETFILTER]: xt_owner: allow matching UID/GID ranges
Add support for ranges to the new revision. This doesn't affect
compatibility since the new revision was not released yet.
Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/linux/netfilter/xt_owner.h | 4 | ||||
| -rw-r--r-- | net/netfilter/xt_owner.c | 14 |
2 files changed, 10 insertions, 8 deletions
diff --git a/include/linux/netfilter/xt_owner.h b/include/linux/netfilter/xt_owner.h index eacd34efebd5..c84e52cfe415 100644 --- a/include/linux/netfilter/xt_owner.h +++ b/include/linux/netfilter/xt_owner.h @@ -8,8 +8,8 @@ enum { }; struct xt_owner_match_info { - u_int32_t uid; - u_int32_t gid; + u_int32_t uid_min, uid_max; + u_int32_t gid_min, gid_max; u_int8_t match, invert; }; diff --git a/net/netfilter/xt_owner.c b/net/netfilter/xt_owner.c index d382f9cc38b0..9059c16144c3 100644 --- a/net/netfilter/xt_owner.c +++ b/net/netfilter/xt_owner.c @@ -4,8 +4,8 @@ * * (C) 2000 Marc Boucher <marc@mbsi.ca> * - * Copyright © CC Computer Consultants GmbH, 2007 - * Contact: <jengelh@computergmbh.de> + * Copyright © CC Computer Consultants GmbH, 2007 - 2008 + * <jengelh@computergmbh.de> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -102,13 +102,15 @@ owner_mt(const struct sk_buff *skb, const struct net_device *in, (XT_OWNER_UID | XT_OWNER_GID)) == 0; if (info->match & XT_OWNER_UID) - if ((filp->f_uid != info->uid) ^ - !!(info->invert & XT_OWNER_UID)) + if ((filp->f_uid >= info->uid_min && + filp->f_uid <= info->uid_max) ^ + !(info->invert & XT_OWNER_UID)) return false; if (info->match & XT_OWNER_GID) - if ((filp->f_gid != info->gid) ^ - !!(info->invert & XT_OWNER_GID)) + if ((filp->f_gid >= info->gid_min && + filp->f_gid <= info->gid_max) ^ + !(info->invert & XT_OWNER_GID)) return false; return true; |