diff options
| author | James Morris <jmorris@namei.org> | 2006-06-09 00:29:17 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-06-17 21:29:57 -0700 |
| commit | 984bc16cc92ea3c247bf34ad667cfb95331b9d3c (patch) | |
| tree | 2342638457f43980501179056f4ba1e4e3c2c1aa /net | |
| parent | c749b29fae74ed59c507d84025b3298202b42609 (diff) | |
[SECMARK]: Add secmark support to core networking.
Add a secmark field to the skbuff structure, to allow security subsystems to
place security markings on network packets. This is similar to the nfmark
field, except is intended for implementing security policy, rather than than
networking policy.
This patch was already acked in principle by Dave Miller.
Signed-off-by: James Morris <jmorris@namei.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/Kconfig | 7 | ||||
| -rw-r--r-- | net/core/skbuff.c | 3 | ||||
| -rw-r--r-- | net/ipv4/ip_output.c | 1 | ||||
| -rw-r--r-- | net/ipv4/netfilter/ipt_REJECT.c | 1 | ||||
| -rw-r--r-- | net/ipv6/ip6_output.c | 1 |
5 files changed, 12 insertions, 1 deletions
diff --git a/net/Kconfig b/net/Kconfig index ccadc8e4815..c6cec5aa548 100644 --- a/net/Kconfig +++ b/net/Kconfig @@ -66,6 +66,13 @@ source "net/ipv6/Kconfig" endif # if INET +config NETWORK_SECMARK + bool "Security Marking" + help + This enables security marking of network packets, similar + to nfmark, but designated for security purposes. + If you are unsure how to answer this question, answer N. + menuconfig NETFILTER bool "Network packet filtering (replaces ipchains)" ---help--- diff --git a/net/core/skbuff.c b/net/core/skbuff.c index fb3770f9c09..96cdcbe24ba 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -464,7 +464,7 @@ struct sk_buff *skb_clone(struct sk_buff *skb, gfp_t gfp_mask) n->tc_verd = CLR_TC_MUNGED(n->tc_verd); C(input_dev); #endif - + skb_copy_secmark(n, skb); #endif C(truesize); atomic_set(&n->users, 1); @@ -526,6 +526,7 @@ static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old) #endif new->tc_index = old->tc_index; #endif + skb_copy_secmark(new, old); atomic_set(&new->users, 1); skb_shinfo(new)->tso_size = skb_shinfo(old)->tso_size; skb_shinfo(new)->tso_segs = skb_shinfo(old)->tso_segs; diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index cff9c3a72da..d4bb3fae4e4 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -410,6 +410,7 @@ static void ip_copy_metadata(struct sk_buff *to, struct sk_buff *from) nf_bridge_get(to->nf_bridge); #endif #endif + skb_copy_secmark(to, from); } /* diff --git a/net/ipv4/netfilter/ipt_REJECT.c b/net/ipv4/netfilter/ipt_REJECT.c index 0bba3c2bb78..431a3ce6f7b 100644 --- a/net/ipv4/netfilter/ipt_REJECT.c +++ b/net/ipv4/netfilter/ipt_REJECT.c @@ -147,6 +147,7 @@ static void send_reset(struct sk_buff *oldskb, int hook) /* This packet will not be the same as the other: clear nf fields */ nf_reset(nskb); nskb->nfmark = 0; + skb_init_secmark(nskb); tcph = (struct tcphdr *)((u_int32_t*)nskb->nh.iph + nskb->nh.iph->ihl); diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 416f6e428a0..d29620f4910 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -459,6 +459,7 @@ static void ip6_copy_metadata(struct sk_buff *to, struct sk_buff *from) nf_bridge_get(to->nf_bridge); #endif #endif + skb_copy_secmark(to, from); } int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr) |