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secmark: export secctx, drop secmark in procfs

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The current secmark code exports a secmark= field which just indicates if
there is special labeling on a packet or not.  We drop this field as it
isn't particularly useful and instead export a new field secctx= which is
the actual human readable text label.

Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: James Morris <jmorris@namei.org>
This commit is contained in:
Eric Paris 2010-10-13 16:25:00 -04:00 committed by James Morris
parent 1cc63249ad
commit 1ae4de0cdf
2 changed files with 50 additions and 6 deletions
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28
net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c
View file

@ -11,6 +11,7 @@
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/percpu.h>
#include <linux/security.h>
#include <net/net_namespace.h>
#include <linux/netfilter.h>
@ -87,6 +88,29 @@ static void ct_seq_stop(struct seq_file *s, void *v)
rcu_read_unlock();
}
#ifdef CONFIG_NF_CONNTRACK_SECMARK
static int ct_show_secctx(struct seq_file *s, const struct nf_conn *ct)
{
int ret;
u32 len;
char *secctx;
ret = security_secid_to_secctx(ct->secmark, &secctx, &len);
if (ret)
return ret;
ret = seq_printf(s, "secctx=%s ", secctx);
security_release_secctx(secctx, len);
return ret;
}
#else
static inline int ct_show_secctx(struct seq_file *s, const struct nf_conn *ct)
{
return 0;
}
#endif
static int ct_seq_show(struct seq_file *s, void *v)
{
struct nf_conntrack_tuple_hash *hash = v;
@ -148,10 +172,8 @@ static int ct_seq_show(struct seq_file *s, void *v)
goto release;
#endif
#ifdef CONFIG_NF_CONNTRACK_SECMARK
if (seq_printf(s, "secmark=%u ", ct->secmark))
if (ct_show_secctx(s, ct))
goto release;
#endif
if (seq_printf(s, "use=%u\n", atomic_read(&ct->ct_general.use)))
goto release;

28
net/netfilter/nf_conntrack_standalone.c
View file

@ -15,6 +15,7 @@
#include <linux/seq_file.h>
#include <linux/percpu.h>
#include <linux/netdevice.h>
#include <linux/security.h>
#include <net/net_namespace.h>
#ifdef CONFIG_SYSCTL
#include <linux/sysctl.h>
@ -108,6 +109,29 @@ static void ct_seq_stop(struct seq_file *s, void *v)
rcu_read_unlock();
}
#ifdef CONFIG_NF_CONNTRACK_SECMARK
static int ct_show_secctx(struct seq_file *s, const struct nf_conn *ct)
{
int ret;
u32 len;
char *secctx;
ret = security_secid_to_secctx(ct->secmark, &secctx, &len);
if (ret)
return ret;
ret = seq_printf(s, "secctx=%s ", secctx);
security_release_secctx(secctx, len);
return ret;
}
#else
static inline int ct_show_secctx(struct seq_file *s, const struct nf_conn *ct)
{
return 0;
}
#endif
/* return 0 on success, 1 in case of error */
static int ct_seq_show(struct seq_file *s, void *v)
{
@ -168,10 +192,8 @@ static int ct_seq_show(struct seq_file *s, void *v)
goto release;
#endif
#ifdef CONFIG_NF_CONNTRACK_SECMARK
if (seq_printf(s, "secmark=%u ", ct->secmark))
if (ct_show_secctx(s, ct))
goto release;
#endif
#ifdef CONFIG_NF_CONNTRACK_ZONES
if (seq_printf(s, "zone=%u ", nf_ct_zone(ct)))