summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorPaul Moore <paul.moore@hp.com>2007-12-20 20:49:33 -0800
committerDavid S. Miller <davem@davemloft.net>2008-01-28 14:59:40 -0800
commit68277accb3a5f004344f4346498640601b8b7016 (patch)
treee6b541283a516406fbd936051028845a20f5a7c4
parent8ea843495df36036cb7f22f61994b34f8362b443 (diff)
[XFRM]: Assorted IPsec fixups
This patch fixes a number of small but potentially troublesome things in the XFRM/IPsec code: * Use the 'audit_enabled' variable already in include/linux/audit.h Removed the need for extern declarations local to each XFRM audit fuction * Convert 'sid' to 'secid' everywhere we can The 'sid' name is specific to SELinux, 'secid' is the common naming convention used by the kernel when refering to tokenized LSM labels, unfortunately we have to leave 'ctx_sid' in 'struct xfrm_sec_ctx' otherwise we risk breaking userspace * Convert address display to use standard NIP* macros Similar to what was recently done with the SPD audit code, this also also includes the removal of some unnecessary memcpy() calls * Move common code to xfrm_audit_common_stateinfo() Code consolidation from the "less is more" book on software development * Proper spacing around commas in function arguments Minor style tweak since I was already touching the code Signed-off-by: Paul Moore <paul.moore@hp.com> Acked-by: James Morris <jmorris@namei.org> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/net/xfrm.h14
-rw-r--r--net/xfrm/xfrm_policy.c15
-rw-r--r--net/xfrm/xfrm_state.c53
3 files changed, 36 insertions, 46 deletions
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index a79702bcdcd..f333c95c418 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -565,7 +565,7 @@ struct xfrm_audit
};
#ifdef CONFIG_AUDITSYSCALL
-static inline struct audit_buffer *xfrm_audit_start(u32 auid, u32 sid)
+static inline struct audit_buffer *xfrm_audit_start(u32 auid, u32 secid)
{
struct audit_buffer *audit_buf = NULL;
char *secctx;
@@ -578,8 +578,8 @@ static inline struct audit_buffer *xfrm_audit_start(u32 auid, u32 sid)
audit_log_format(audit_buf, "auid=%u", auid);
- if (sid != 0 &&
- security_secid_to_secctx(sid, &secctx, &secctx_len) == 0) {
+ if (secid != 0 &&
+ security_secid_to_secctx(secid, &secctx, &secctx_len) == 0) {
audit_log_format(audit_buf, " subj=%s", secctx);
security_release_secctx(secctx, secctx_len);
} else
@@ -588,13 +588,13 @@ static inline struct audit_buffer *xfrm_audit_start(u32 auid, u32 sid)
}
extern void xfrm_audit_policy_add(struct xfrm_policy *xp, int result,
- u32 auid, u32 sid);
+ u32 auid, u32 secid);
extern void xfrm_audit_policy_delete(struct xfrm_policy *xp, int result,
- u32 auid, u32 sid);
+ u32 auid, u32 secid);
extern void xfrm_audit_state_add(struct xfrm_state *x, int result,
- u32 auid, u32 sid);
+ u32 auid, u32 secid);
extern void xfrm_audit_state_delete(struct xfrm_state *x, int result,
- u32 auid, u32 sid);
+ u32 auid, u32 secid);
#else
#define xfrm_audit_policy_add(x, r, a, s) do { ; } while (0)
#define xfrm_audit_policy_delete(x, r, a, s) do { ; } while (0)
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 74807a7d3d6..abc3e39b115 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -24,6 +24,7 @@
#include <linux/netfilter.h>
#include <linux/module.h>
#include <linux/cache.h>
+#include <linux/audit.h>
#include <net/dst.h>
#include <net/xfrm.h>
#include <net/ip.h>
@@ -2401,15 +2402,14 @@ static inline void xfrm_audit_common_policyinfo(struct xfrm_policy *xp,
}
}
-void
-xfrm_audit_policy_add(struct xfrm_policy *xp, int result, u32 auid, u32 sid)
+void xfrm_audit_policy_add(struct xfrm_policy *xp, int result,
+ u32 auid, u32 secid)
{
struct audit_buffer *audit_buf;
- extern int audit_enabled;
if (audit_enabled == 0)
return;
- audit_buf = xfrm_audit_start(auid, sid);
+ audit_buf = xfrm_audit_start(auid, secid);
if (audit_buf == NULL)
return;
audit_log_format(audit_buf, " op=SPD-add res=%u", result);
@@ -2418,15 +2418,14 @@ xfrm_audit_policy_add(struct xfrm_policy *xp, int result, u32 auid, u32 sid)
}
EXPORT_SYMBOL_GPL(xfrm_audit_policy_add);
-void
-xfrm_audit_policy_delete(struct xfrm_policy *xp, int result, u32 auid, u32 sid)
+void xfrm_audit_policy_delete(struct xfrm_policy *xp, int result,
+ u32 auid, u32 secid)
{
struct audit_buffer *audit_buf;
- extern int audit_enabled;
if (audit_enabled == 0)
return;
- audit_buf = xfrm_audit_start(auid, sid);
+ audit_buf = xfrm_audit_start(auid, secid);
if (audit_buf == NULL)
return;
audit_log_format(audit_buf, " op=SPD-delete res=%u", result);
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index f7c0951c9fd..9e57378c51d 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -19,6 +19,7 @@
#include <linux/ipsec.h>
#include <linux/module.h>
#include <linux/cache.h>
+#include <linux/audit.h>
#include <asm/uaccess.h>
#include "xfrm_hash.h"
@@ -1998,69 +1999,59 @@ void __init xfrm_state_init(void)
static inline void xfrm_audit_common_stateinfo(struct xfrm_state *x,
struct audit_buffer *audit_buf)
{
- if (x->security)
+ struct xfrm_sec_ctx *ctx = x->security;
+ u32 spi = ntohl(x->id.spi);
+
+ if (ctx)
audit_log_format(audit_buf, " sec_alg=%u sec_doi=%u sec_obj=%s",
- x->security->ctx_alg, x->security->ctx_doi,
- x->security->ctx_str);
+ ctx->ctx_alg, ctx->ctx_doi, ctx->ctx_str);
switch(x->props.family) {
case AF_INET:
- audit_log_format(audit_buf, " src=%u.%u.%u.%u dst=%u.%u.%u.%u",
+ audit_log_format(audit_buf,
+ " src=" NIPQUAD_FMT " dst=" NIPQUAD_FMT,
NIPQUAD(x->props.saddr.a4),
NIPQUAD(x->id.daddr.a4));
break;
case AF_INET6:
- {
- struct in6_addr saddr6, daddr6;
-
- memcpy(&saddr6, x->props.saddr.a6,
- sizeof(struct in6_addr));
- memcpy(&daddr6, x->id.daddr.a6,
- sizeof(struct in6_addr));
- audit_log_format(audit_buf,
- " src=" NIP6_FMT " dst=" NIP6_FMT,
- NIP6(saddr6), NIP6(daddr6));
- }
+ audit_log_format(audit_buf,
+ " src=" NIP6_FMT " dst=" NIP6_FMT,
+ NIP6(*(struct in6_addr *)x->props.saddr.a6),
+ NIP6(*(struct in6_addr *)x->id.daddr.a6));
break;
}
+
+ audit_log_format(audit_buf, " spi=%u(0x%x)", spi, spi);
}
-void
-xfrm_audit_state_add(struct xfrm_state *x, int result, u32 auid, u32 sid)
+void xfrm_audit_state_add(struct xfrm_state *x, int result,
+ u32 auid, u32 secid)
{
struct audit_buffer *audit_buf;
- u32 spi;
- extern int audit_enabled;
if (audit_enabled == 0)
return;
- audit_buf = xfrm_audit_start(auid, sid);
+ audit_buf = xfrm_audit_start(auid, secid);
if (audit_buf == NULL)
return;
- audit_log_format(audit_buf, " op=SAD-add res=%u",result);
+ audit_log_format(audit_buf, " op=SAD-add res=%u", result);
xfrm_audit_common_stateinfo(x, audit_buf);
- spi = ntohl(x->id.spi);
- audit_log_format(audit_buf, " spi=%u(0x%x)", spi, spi);
audit_log_end(audit_buf);
}
EXPORT_SYMBOL_GPL(xfrm_audit_state_add);
-void
-xfrm_audit_state_delete(struct xfrm_state *x, int result, u32 auid, u32 sid)
+void xfrm_audit_state_delete(struct xfrm_state *x, int result,
+ u32 auid, u32 secid)
{
struct audit_buffer *audit_buf;
- u32 spi;
- extern int audit_enabled;
if (audit_enabled == 0)
return;
- audit_buf = xfrm_audit_start(auid, sid);
+ audit_buf = xfrm_audit_start(auid, secid);
if (audit_buf == NULL)
return;
- audit_log_format(audit_buf, " op=SAD-delete res=%u",result);
+ audit_log_format(audit_buf, " op=SAD-delete res=%u", result);
xfrm_audit_common_stateinfo(x, audit_buf);
- spi = ntohl(x->id.spi);
- audit_log_format(audit_buf, " spi=%u(0x%x)", spi, spi);
audit_log_end(audit_buf);
}
EXPORT_SYMBOL_GPL(xfrm_audit_state_delete);