diff mbox series

[smack] smack: remove duplicated hook function

Message ID 20211011143309.17203-1-fw@strlen.de (mailing list archive)
State New, archived
Headers show
Series [smack] smack: remove duplicated hook function | expand

Commit Message

Florian Westphal Oct. 11, 2021, 2:33 p.m. UTC
ipv4 and ipv6 hook functions are identical, remove one.

Signed-off-by: Florian Westphal <fw@strlen.de>
---
 patch targets next branch of
 git://github.com/cschaufler/smack-next.

 security/smack/smack_netfilter.c | 26 +++-----------------------
 1 file changed, 3 insertions(+), 23 deletions(-)

Comments

Casey Schaufler Oct. 12, 2021, 2:38 p.m. UTC | #1
On 10/11/2021 7:33 AM, Florian Westphal wrote:
> ipv4 and ipv6 hook functions are identical, remove one.
>
> Signed-off-by: Florian Westphal <fw@strlen.de>

Looks fine, with the one change I've noted below. If you're
OK with that change I can take it for smack-next.

> ---
>  patch targets next branch of
>  git://github.com/cschaufler/smack-next.
>
>  security/smack/smack_netfilter.c | 26 +++-----------------------
>  1 file changed, 3 insertions(+), 23 deletions(-)
>
> diff --git a/security/smack/smack_netfilter.c b/security/smack/smack_netfilter.c
> index fc7399b45373..a7ef2e2abc8a 100644
> --- a/security/smack/smack_netfilter.c
> +++ b/security/smack/smack_netfilter.c
> @@ -18,27 +18,7 @@
>  #include <net/net_namespace.h>
>  #include "smack.h"
>  
> -#if IS_ENABLED(CONFIG_IPV6)
> -
> -static unsigned int smack_ipv6_output(void *priv,
> -					struct sk_buff *skb,
> -					const struct nf_hook_state *state)
> -{
> -	struct sock *sk = skb_to_full_sk(skb);
> -	struct socket_smack *ssp;
> -	struct smack_known *skp;
> -
> -	if (sk && sk->sk_security) {
> -		ssp = sk->sk_security;
> -		skp = ssp->smk_out;
> -		skb->secmark = skp->smk_secid;
> -	}
> -
> -	return NF_ACCEPT;
> -}
> -#endif	/* IPV6 */
> -
> -static unsigned int smack_ipv4_output(void *priv,
> +static unsigned int smack_hook_output(void *priv,

I would prefer smack_ip_output() to smack_hook_output().

>  					struct sk_buff *skb,
>  					const struct nf_hook_state *state)
>  {
> @@ -57,14 +37,14 @@ static unsigned int smack_ipv4_output(void *priv,
>  
>  static const struct nf_hook_ops smack_nf_ops[] = {
>  	{
> -		.hook =		smack_ipv4_output,
> +		.hook =		smack_hook_output,
>  		.pf =		NFPROTO_IPV4,
>  		.hooknum =	NF_INET_LOCAL_OUT,
>  		.priority =	NF_IP_PRI_SELINUX_FIRST,
>  	},
>  #if IS_ENABLED(CONFIG_IPV6)
>  	{
> -		.hook =		smack_ipv6_output,
> +		.hook =		smack_hook_output,
>  		.pf =		NFPROTO_IPV6,
>  		.hooknum =	NF_INET_LOCAL_OUT,
>  		.priority =	NF_IP6_PRI_SELINUX_FIRST,
Florian Westphal Oct. 12, 2021, 2:40 p.m. UTC | #2
Casey Schaufler <casey@schaufler-ca.com> wrote:
> > Signed-off-by: Florian Westphal <fw@strlen.de>
> 
> Looks fine, with the one change I've noted below. If you're
> OK with that change I can take it for smack-next.

Sure, smack_ip_output() is fine.
Casey Schaufler Oct. 12, 2021, 3:26 p.m. UTC | #3
On 10/12/2021 7:40 AM, Florian Westphal wrote:
> Casey Schaufler <casey@schaufler-ca.com> wrote:
>>> Signed-off-by: Florian Westphal <fw@strlen.de>
>> Looks fine, with the one change I've noted below. If you're
>> OK with that change I can take it for smack-next.
> Sure, smack_ip_output() is fine.

Added to smack-next#next. Thank you.
diff mbox series

Patch

diff --git a/security/smack/smack_netfilter.c b/security/smack/smack_netfilter.c
index fc7399b45373..a7ef2e2abc8a 100644
--- a/security/smack/smack_netfilter.c
+++ b/security/smack/smack_netfilter.c
@@ -18,27 +18,7 @@ 
 #include <net/net_namespace.h>
 #include "smack.h"
 
-#if IS_ENABLED(CONFIG_IPV6)
-
-static unsigned int smack_ipv6_output(void *priv,
-					struct sk_buff *skb,
-					const struct nf_hook_state *state)
-{
-	struct sock *sk = skb_to_full_sk(skb);
-	struct socket_smack *ssp;
-	struct smack_known *skp;
-
-	if (sk && sk->sk_security) {
-		ssp = sk->sk_security;
-		skp = ssp->smk_out;
-		skb->secmark = skp->smk_secid;
-	}
-
-	return NF_ACCEPT;
-}
-#endif	/* IPV6 */
-
-static unsigned int smack_ipv4_output(void *priv,
+static unsigned int smack_hook_output(void *priv,
 					struct sk_buff *skb,
 					const struct nf_hook_state *state)
 {
@@ -57,14 +37,14 @@  static unsigned int smack_ipv4_output(void *priv,
 
 static const struct nf_hook_ops smack_nf_ops[] = {
 	{
-		.hook =		smack_ipv4_output,
+		.hook =		smack_hook_output,
 		.pf =		NFPROTO_IPV4,
 		.hooknum =	NF_INET_LOCAL_OUT,
 		.priority =	NF_IP_PRI_SELINUX_FIRST,
 	},
 #if IS_ENABLED(CONFIG_IPV6)
 	{
-		.hook =		smack_ipv6_output,
+		.hook =		smack_hook_output,
 		.pf =		NFPROTO_IPV6,
 		.hooknum =	NF_INET_LOCAL_OUT,
 		.priority =	NF_IP6_PRI_SELINUX_FIRST,