| Message ID | 20201130153631.21872-2-fw@strlen.de |
|---|---|
| State | New |
| Headers | show |
| Series | mptcp: reject invalid mp_join requests right away | expand |
On Mon, 30 Nov 2020 16:36:29 +0100 Florian Westphal wrote: > A followup change to tcp_request_sock_op would have to drop the 'const' > qualifier from the 'route_req' function as the > 'security_inet_conn_request' call is moved there - and that function > expects a 'struct sock *'. > > However, it turns out its also possible to add a const qualifier to > security_inet_conn_request instead. > > Signed-off-by: Florian Westphal <fw@strlen.de> > --- > The code churn is unfortunate. Alternative would be to change > the function signature of ->route_req: > struct dst_entry *(*route_req)(struct sock *sk, ... > [ i.e., drop 'const' ]. Thoughts? Security folks - is this okay to merge into net-next? We can put it on a branch and pull into both trees if the risk of conflicts is high. > diff --git a/include/linux/lsm_audit.h b/include/linux/lsm_audit.h > index 28f23b341c1c..cd23355d2271 100644 > --- a/include/linux/lsm_audit.h > +++ b/include/linux/lsm_audit.h > @@ -26,7 +26,7 @@ > > struct lsm_network_audit { > int netif; > - struct sock *sk; > + const struct sock *sk; > u16 family; > __be16 dport; > __be16 sport; > diff --git a/include/linux/lsm_hook_defs.h b/include/linux/lsm_hook_defs.h > index 32a940117e7a..acc0494cceba 100644 > --- a/include/linux/lsm_hook_defs.h > +++ b/include/linux/lsm_hook_defs.h > @@ -301,7 +301,7 @@ LSM_HOOK(void, LSM_RET_VOID, sk_clone_security, const struct sock *sk, > struct sock *newsk) > LSM_HOOK(void, LSM_RET_VOID, sk_getsecid, struct sock *sk, u32 *secid) > LSM_HOOK(void, LSM_RET_VOID, sock_graft, struct sock *sk, struct socket *parent) > -LSM_HOOK(int, 0, inet_conn_request, struct sock *sk, struct sk_buff *skb, > +LSM_HOOK(int, 0, inet_conn_request, const struct sock *sk, struct sk_buff *skb, > struct request_sock *req) > LSM_HOOK(void, LSM_RET_VOID, inet_csk_clone, struct sock *newsk, > const struct request_sock *req) > diff --git a/include/linux/security.h b/include/linux/security.h > index bc2725491560..0df62735651b 100644 > --- a/include/linux/security.h > +++ b/include/linux/security.h > @@ -1358,7 +1358,7 @@ void security_sk_clone(const struct sock *sk, struct sock *newsk); > void security_sk_classify_flow(struct sock *sk, struct flowi *fl); > void security_req_classify_flow(const struct request_sock *req, struct flowi *fl); > void security_sock_graft(struct sock*sk, struct socket *parent); > -int security_inet_conn_request(struct sock *sk, > +int security_inet_conn_request(const struct sock *sk, > struct sk_buff *skb, struct request_sock *req); > void security_inet_csk_clone(struct sock *newsk, > const struct request_sock *req); > @@ -1519,7 +1519,7 @@ static inline void security_sock_graft(struct sock *sk, struct socket *parent) > { > } > > -static inline int security_inet_conn_request(struct sock *sk, > +static inline int security_inet_conn_request(const struct sock *sk, > struct sk_buff *skb, struct request_sock *req) > { > return 0; > diff --git a/security/apparmor/include/net.h b/security/apparmor/include/net.h > index 2431c011800d..aadb4b29fb66 100644 > --- a/security/apparmor/include/net.h > +++ b/security/apparmor/include/net.h > @@ -107,6 +107,6 @@ int aa_sock_file_perm(struct aa_label *label, const char *op, u32 request, > struct socket *sock); > > int apparmor_secmark_check(struct aa_label *label, char *op, u32 request, > - u32 secid, struct sock *sk); > + u32 secid, const struct sock *sk); > > #endif /* __AA_NET_H */ > diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c > index ffeaee5ed968..1b0aba8eb723 100644 > --- a/security/apparmor/lsm.c > +++ b/security/apparmor/lsm.c > @@ -1147,7 +1147,7 @@ static void apparmor_sock_graft(struct sock *sk, struct socket *parent) > } > > #ifdef CONFIG_NETWORK_SECMARK > -static int apparmor_inet_conn_request(struct sock *sk, struct sk_buff *skb, > +static int apparmor_inet_conn_request(const struct sock *sk, struct sk_buff *skb, > struct request_sock *req) > { > struct aa_sk_ctx *ctx = SK_CTX(sk); > diff --git a/security/apparmor/net.c b/security/apparmor/net.c > index fa0e85568450..e0c1b50d6edd 100644 > --- a/security/apparmor/net.c > +++ b/security/apparmor/net.c > @@ -211,7 +211,7 @@ static int apparmor_secmark_init(struct aa_secmark *secmark) > } > > static int aa_secmark_perm(struct aa_profile *profile, u32 request, u32 secid, > - struct common_audit_data *sa, struct sock *sk) > + struct common_audit_data *sa) > { > int i, ret; > struct aa_perms perms = { }; > @@ -244,13 +244,13 @@ static int aa_secmark_perm(struct aa_profile *profile, u32 request, u32 secid, > } > > int apparmor_secmark_check(struct aa_label *label, char *op, u32 request, > - u32 secid, struct sock *sk) > + u32 secid, const struct sock *sk) > { > struct aa_profile *profile; > DEFINE_AUDIT_SK(sa, op, sk); > > return fn_for_each_confined(label, profile, > aa_secmark_perm(profile, request, secid, > - &sa, sk)); > + &sa)); > } > #endif > diff --git a/security/lsm_audit.c b/security/lsm_audit.c > index 53d0d183db8f..078f9cdcd7f5 100644 > --- a/security/lsm_audit.c > +++ b/security/lsm_audit.c > @@ -183,7 +183,7 @@ int ipv6_skb_to_auditdata(struct sk_buff *skb, > > > static inline void print_ipv6_addr(struct audit_buffer *ab, > - struct in6_addr *addr, __be16 port, > + const struct in6_addr *addr, __be16 port, > char *name1, char *name2) > { > if (!ipv6_addr_any(addr)) > @@ -322,7 +322,7 @@ static void dump_common_audit_data(struct audit_buffer *ab, > } > case LSM_AUDIT_DATA_NET: > if (a->u.net->sk) { > - struct sock *sk = a->u.net->sk; > + const struct sock *sk = a->u.net->sk; > struct unix_sock *u; > struct unix_address *addr; > int len = 0; > diff --git a/security/security.c b/security/security.c > index a28045dc9e7f..6509f95d203f 100644 > --- a/security/security.c > +++ b/security/security.c > @@ -2225,7 +2225,7 @@ void security_sock_graft(struct sock *sk, struct socket *parent) > } > EXPORT_SYMBOL(security_sock_graft); > > -int security_inet_conn_request(struct sock *sk, > +int security_inet_conn_request(const struct sock *sk, > struct sk_buff *skb, struct request_sock *req) > { > return call_int_hook(inet_conn_request, 0, sk, skb, req); > diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c > index 6b1826fc3658..6fa593006802 100644 > --- a/security/selinux/hooks.c > +++ b/security/selinux/hooks.c > @@ -5355,7 +5355,7 @@ static void selinux_sctp_sk_clone(struct sctp_endpoint *ep, struct sock *sk, > selinux_netlbl_sctp_sk_clone(sk, newsk); > } > > -static int selinux_inet_conn_request(struct sock *sk, struct sk_buff *skb, > +static int selinux_inet_conn_request(const struct sock *sk, struct sk_buff *skb, > struct request_sock *req) > { > struct sk_security_struct *sksec = sk->sk_security; > diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c > index 5c90b9fa4d40..3a62d6aa74a6 100644 > --- a/security/smack/smack_lsm.c > +++ b/security/smack/smack_lsm.c > @@ -3864,7 +3864,7 @@ static inline struct smack_known *smack_from_skb(struct sk_buff *skb) > * > * Returns smack_known of the IP options or NULL if that won't work. > */ > -static struct smack_known *smack_from_netlbl(struct sock *sk, u16 family, > +static struct smack_known *smack_from_netlbl(const struct sock *sk, u16 family, > struct sk_buff *skb) > { > struct netlbl_lsm_secattr secattr; > @@ -4114,7 +4114,7 @@ static void smack_sock_graft(struct sock *sk, struct socket *parent) > * Returns 0 if a task with the packet label could write to > * the socket, otherwise an error code > */ > -static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb, > +static int smack_inet_conn_request(const struct sock *sk, struct sk_buff *skb, > struct request_sock *req) > { > u16 family = sk->sk_family;
On Wed, 2 Dec 2020, Jakub Kicinski wrote: > On Mon, 30 Nov 2020 16:36:29 +0100 Florian Westphal wrote: > > A followup change to tcp_request_sock_op would have to drop the 'const' > > qualifier from the 'route_req' function as the > > 'security_inet_conn_request' call is moved there - and that function > > expects a 'struct sock *'. > > > > However, it turns out its also possible to add a const qualifier to > > security_inet_conn_request instead. > > > > Signed-off-by: Florian Westphal <fw@strlen.de> > > --- > > The code churn is unfortunate. Alternative would be to change > > the function signature of ->route_req: > > struct dst_entry *(*route_req)(struct sock *sk, ... > > [ i.e., drop 'const' ]. Thoughts? > > Security folks - is this okay to merge into net-next? > > We can put it on a branch and pull into both trees if the risk > of conflicts is high. Acked-by: James Morris <jamorris@linux.microsoft.com> > > > diff --git a/include/linux/lsm_audit.h b/include/linux/lsm_audit.h > > index 28f23b341c1c..cd23355d2271 100644 > > --- a/include/linux/lsm_audit.h > > +++ b/include/linux/lsm_audit.h > > @@ -26,7 +26,7 @@ > > > > struct lsm_network_audit { > > int netif; > > - struct sock *sk; > > + const struct sock *sk; > > u16 family; > > __be16 dport; > > __be16 sport; > > diff --git a/include/linux/lsm_hook_defs.h b/include/linux/lsm_hook_defs.h > > index 32a940117e7a..acc0494cceba 100644 > > --- a/include/linux/lsm_hook_defs.h > > +++ b/include/linux/lsm_hook_defs.h > > @@ -301,7 +301,7 @@ LSM_HOOK(void, LSM_RET_VOID, sk_clone_security, const struct sock *sk, > > struct sock *newsk) > > LSM_HOOK(void, LSM_RET_VOID, sk_getsecid, struct sock *sk, u32 *secid) > > LSM_HOOK(void, LSM_RET_VOID, sock_graft, struct sock *sk, struct socket *parent) > > -LSM_HOOK(int, 0, inet_conn_request, struct sock *sk, struct sk_buff *skb, > > +LSM_HOOK(int, 0, inet_conn_request, const struct sock *sk, struct sk_buff *skb, > > struct request_sock *req) > > LSM_HOOK(void, LSM_RET_VOID, inet_csk_clone, struct sock *newsk, > > const struct request_sock *req) > > diff --git a/include/linux/security.h b/include/linux/security.h > > index bc2725491560..0df62735651b 100644 > > --- a/include/linux/security.h > > +++ b/include/linux/security.h > > @@ -1358,7 +1358,7 @@ void security_sk_clone(const struct sock *sk, struct sock *newsk); > > void security_sk_classify_flow(struct sock *sk, struct flowi *fl); > > void security_req_classify_flow(const struct request_sock *req, struct flowi *fl); > > void security_sock_graft(struct sock*sk, struct socket *parent); > > -int security_inet_conn_request(struct sock *sk, > > +int security_inet_conn_request(const struct sock *sk, > > struct sk_buff *skb, struct request_sock *req); > > void security_inet_csk_clone(struct sock *newsk, > > const struct request_sock *req); > > @@ -1519,7 +1519,7 @@ static inline void security_sock_graft(struct sock *sk, struct socket *parent) > > { > > } > > > > -static inline int security_inet_conn_request(struct sock *sk, > > +static inline int security_inet_conn_request(const struct sock *sk, > > struct sk_buff *skb, struct request_sock *req) > > { > > return 0; > > diff --git a/security/apparmor/include/net.h b/security/apparmor/include/net.h > > index 2431c011800d..aadb4b29fb66 100644 > > --- a/security/apparmor/include/net.h > > +++ b/security/apparmor/include/net.h > > @@ -107,6 +107,6 @@ int aa_sock_file_perm(struct aa_label *label, const char *op, u32 request, > > struct socket *sock); > > > > int apparmor_secmark_check(struct aa_label *label, char *op, u32 request, > > - u32 secid, struct sock *sk); > > + u32 secid, const struct sock *sk); > > > > #endif /* __AA_NET_H */ > > diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c > > index ffeaee5ed968..1b0aba8eb723 100644 > > --- a/security/apparmor/lsm.c > > +++ b/security/apparmor/lsm.c > > @@ -1147,7 +1147,7 @@ static void apparmor_sock_graft(struct sock *sk, struct socket *parent) > > } > > > > #ifdef CONFIG_NETWORK_SECMARK > > -static int apparmor_inet_conn_request(struct sock *sk, struct sk_buff *skb, > > +static int apparmor_inet_conn_request(const struct sock *sk, struct sk_buff *skb, > > struct request_sock *req) > > { > > struct aa_sk_ctx *ctx = SK_CTX(sk); > > diff --git a/security/apparmor/net.c b/security/apparmor/net.c > > index fa0e85568450..e0c1b50d6edd 100644 > > --- a/security/apparmor/net.c > > +++ b/security/apparmor/net.c > > @@ -211,7 +211,7 @@ static int apparmor_secmark_init(struct aa_secmark *secmark) > > } > > > > static int aa_secmark_perm(struct aa_profile *profile, u32 request, u32 secid, > > - struct common_audit_data *sa, struct sock *sk) > > + struct common_audit_data *sa) > > { > > int i, ret; > > struct aa_perms perms = { }; > > @@ -244,13 +244,13 @@ static int aa_secmark_perm(struct aa_profile *profile, u32 request, u32 secid, > > } > > > > int apparmor_secmark_check(struct aa_label *label, char *op, u32 request, > > - u32 secid, struct sock *sk) > > + u32 secid, const struct sock *sk) > > { > > struct aa_profile *profile; > > DEFINE_AUDIT_SK(sa, op, sk); > > > > return fn_for_each_confined(label, profile, > > aa_secmark_perm(profile, request, secid, > > - &sa, sk)); > > + &sa)); > > } > > #endif > > diff --git a/security/lsm_audit.c b/security/lsm_audit.c > > index 53d0d183db8f..078f9cdcd7f5 100644 > > --- a/security/lsm_audit.c > > +++ b/security/lsm_audit.c > > @@ -183,7 +183,7 @@ int ipv6_skb_to_auditdata(struct sk_buff *skb, > > > > > > static inline void print_ipv6_addr(struct audit_buffer *ab, > > - struct in6_addr *addr, __be16 port, > > + const struct in6_addr *addr, __be16 port, > > char *name1, char *name2) > > { > > if (!ipv6_addr_any(addr)) > > @@ -322,7 +322,7 @@ static void dump_common_audit_data(struct audit_buffer *ab, > > } > > case LSM_AUDIT_DATA_NET: > > if (a->u.net->sk) { > > - struct sock *sk = a->u.net->sk; > > + const struct sock *sk = a->u.net->sk; > > struct unix_sock *u; > > struct unix_address *addr; > > int len = 0; > > diff --git a/security/security.c b/security/security.c > > index a28045dc9e7f..6509f95d203f 100644 > > --- a/security/security.c > > +++ b/security/security.c > > @@ -2225,7 +2225,7 @@ void security_sock_graft(struct sock *sk, struct socket *parent) > > } > > EXPORT_SYMBOL(security_sock_graft); > > > > -int security_inet_conn_request(struct sock *sk, > > +int security_inet_conn_request(const struct sock *sk, > > struct sk_buff *skb, struct request_sock *req) > > { > > return call_int_hook(inet_conn_request, 0, sk, skb, req); > > diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c > > index 6b1826fc3658..6fa593006802 100644 > > --- a/security/selinux/hooks.c > > +++ b/security/selinux/hooks.c > > @@ -5355,7 +5355,7 @@ static void selinux_sctp_sk_clone(struct sctp_endpoint *ep, struct sock *sk, > > selinux_netlbl_sctp_sk_clone(sk, newsk); > > } > > > > -static int selinux_inet_conn_request(struct sock *sk, struct sk_buff *skb, > > +static int selinux_inet_conn_request(const struct sock *sk, struct sk_buff *skb, > > struct request_sock *req) > > { > > struct sk_security_struct *sksec = sk->sk_security; > > diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c > > index 5c90b9fa4d40..3a62d6aa74a6 100644 > > --- a/security/smack/smack_lsm.c > > +++ b/security/smack/smack_lsm.c > > @@ -3864,7 +3864,7 @@ static inline struct smack_known *smack_from_skb(struct sk_buff *skb) > > * > > * Returns smack_known of the IP options or NULL if that won't work. > > */ > > -static struct smack_known *smack_from_netlbl(struct sock *sk, u16 family, > > +static struct smack_known *smack_from_netlbl(const struct sock *sk, u16 family, > > struct sk_buff *skb) > > { > > struct netlbl_lsm_secattr secattr; > > @@ -4114,7 +4114,7 @@ static void smack_sock_graft(struct sock *sk, struct socket *parent) > > * Returns 0 if a task with the packet label could write to > > * the socket, otherwise an error code > > */ > > -static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb, > > +static int smack_inet_conn_request(const struct sock *sk, struct sk_buff *skb, > > struct request_sock *req) > > { > > u16 family = sk->sk_family; > -- James Morris <jmorris@namei.org>
On Fri, 4 Dec 2020 04:07:16 +1100 (AEDT) James Morris wrote: > On Wed, 2 Dec 2020, Jakub Kicinski wrote: > > On Mon, 30 Nov 2020 16:36:29 +0100 Florian Westphal wrote: > > > A followup change to tcp_request_sock_op would have to drop the 'const' > > > qualifier from the 'route_req' function as the > > > 'security_inet_conn_request' call is moved there - and that function > > > expects a 'struct sock *'. > > > > > > However, it turns out its also possible to add a const qualifier to > > > security_inet_conn_request instead. > > > > > > Signed-off-by: Florian Westphal <fw@strlen.de> > > > --- > > > The code churn is unfortunate. Alternative would be to change > > > the function signature of ->route_req: > > > struct dst_entry *(*route_req)(struct sock *sk, ... > > > [ i.e., drop 'const' ]. Thoughts? > > > > Security folks - is this okay to merge into net-next? > > > > We can put it on a branch and pull into both trees if the risk > > of conflicts is high. > > Acked-by: James Morris <jamorris@linux.microsoft.com> Thank you! Into net-next it goes..
diff --git a/include/linux/lsm_audit.h b/include/linux/lsm_audit.h index 28f23b341c1c..cd23355d2271 100644 --- a/include/linux/lsm_audit.h +++ b/include/linux/lsm_audit.h @@ -26,7 +26,7 @@ struct lsm_network_audit { int netif; - struct sock *sk; + const struct sock *sk; u16 family; __be16 dport; __be16 sport; diff --git a/include/linux/lsm_hook_defs.h b/include/linux/lsm_hook_defs.h index 32a940117e7a..acc0494cceba 100644 --- a/include/linux/lsm_hook_defs.h +++ b/include/linux/lsm_hook_defs.h @@ -301,7 +301,7 @@ LSM_HOOK(void, LSM_RET_VOID, sk_clone_security, const struct sock *sk, struct sock *newsk) LSM_HOOK(void, LSM_RET_VOID, sk_getsecid, struct sock *sk, u32 *secid) LSM_HOOK(void, LSM_RET_VOID, sock_graft, struct sock *sk, struct socket *parent) -LSM_HOOK(int, 0, inet_conn_request, struct sock *sk, struct sk_buff *skb, +LSM_HOOK(int, 0, inet_conn_request, const struct sock *sk, struct sk_buff *skb, struct request_sock *req) LSM_HOOK(void, LSM_RET_VOID, inet_csk_clone, struct sock *newsk, const struct request_sock *req) diff --git a/include/linux/security.h b/include/linux/security.h index bc2725491560..0df62735651b 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -1358,7 +1358,7 @@ void security_sk_clone(const struct sock *sk, struct sock *newsk); void security_sk_classify_flow(struct sock *sk, struct flowi *fl); void security_req_classify_flow(const struct request_sock *req, struct flowi *fl); void security_sock_graft(struct sock*sk, struct socket *parent); -int security_inet_conn_request(struct sock *sk, +int security_inet_conn_request(const struct sock *sk, struct sk_buff *skb, struct request_sock *req); void security_inet_csk_clone(struct sock *newsk, const struct request_sock *req); @@ -1519,7 +1519,7 @@ static inline void security_sock_graft(struct sock *sk, struct socket *parent) { } -static inline int security_inet_conn_request(struct sock *sk, +static inline int security_inet_conn_request(const struct sock *sk, struct sk_buff *skb, struct request_sock *req) { return 0; diff --git a/security/apparmor/include/net.h b/security/apparmor/include/net.h index 2431c011800d..aadb4b29fb66 100644 --- a/security/apparmor/include/net.h +++ b/security/apparmor/include/net.h @@ -107,6 +107,6 @@ int aa_sock_file_perm(struct aa_label *label, const char *op, u32 request, struct socket *sock); int apparmor_secmark_check(struct aa_label *label, char *op, u32 request, - u32 secid, struct sock *sk); + u32 secid, const struct sock *sk); #endif /* __AA_NET_H */ diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c index ffeaee5ed968..1b0aba8eb723 100644 --- a/security/apparmor/lsm.c +++ b/security/apparmor/lsm.c @@ -1147,7 +1147,7 @@ static void apparmor_sock_graft(struct sock *sk, struct socket *parent) } #ifdef CONFIG_NETWORK_SECMARK -static int apparmor_inet_conn_request(struct sock *sk, struct sk_buff *skb, +static int apparmor_inet_conn_request(const struct sock *sk, struct sk_buff *skb, struct request_sock *req) { struct aa_sk_ctx *ctx = SK_CTX(sk); diff --git a/security/apparmor/net.c b/security/apparmor/net.c index fa0e85568450..e0c1b50d6edd 100644 --- a/security/apparmor/net.c +++ b/security/apparmor/net.c @@ -211,7 +211,7 @@ static int apparmor_secmark_init(struct aa_secmark *secmark) } static int aa_secmark_perm(struct aa_profile *profile, u32 request, u32 secid, - struct common_audit_data *sa, struct sock *sk) + struct common_audit_data *sa) { int i, ret; struct aa_perms perms = { }; @@ -244,13 +244,13 @@ static int aa_secmark_perm(struct aa_profile *profile, u32 request, u32 secid, } int apparmor_secmark_check(struct aa_label *label, char *op, u32 request, - u32 secid, struct sock *sk) + u32 secid, const struct sock *sk) { struct aa_profile *profile; DEFINE_AUDIT_SK(sa, op, sk); return fn_for_each_confined(label, profile, aa_secmark_perm(profile, request, secid, - &sa, sk)); + &sa)); } #endif diff --git a/security/lsm_audit.c b/security/lsm_audit.c index 53d0d183db8f..078f9cdcd7f5 100644 --- a/security/lsm_audit.c +++ b/security/lsm_audit.c @@ -183,7 +183,7 @@ int ipv6_skb_to_auditdata(struct sk_buff *skb, static inline void print_ipv6_addr(struct audit_buffer *ab, - struct in6_addr *addr, __be16 port, + const struct in6_addr *addr, __be16 port, char *name1, char *name2) { if (!ipv6_addr_any(addr)) @@ -322,7 +322,7 @@ static void dump_common_audit_data(struct audit_buffer *ab, } case LSM_AUDIT_DATA_NET: if (a->u.net->sk) { - struct sock *sk = a->u.net->sk; + const struct sock *sk = a->u.net->sk; struct unix_sock *u; struct unix_address *addr; int len = 0; diff --git a/security/security.c b/security/security.c index a28045dc9e7f..6509f95d203f 100644 --- a/security/security.c +++ b/security/security.c @@ -2225,7 +2225,7 @@ void security_sock_graft(struct sock *sk, struct socket *parent) } EXPORT_SYMBOL(security_sock_graft); -int security_inet_conn_request(struct sock *sk, +int security_inet_conn_request(const struct sock *sk, struct sk_buff *skb, struct request_sock *req) { return call_int_hook(inet_conn_request, 0, sk, skb, req); diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 6b1826fc3658..6fa593006802 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -5355,7 +5355,7 @@ static void selinux_sctp_sk_clone(struct sctp_endpoint *ep, struct sock *sk, selinux_netlbl_sctp_sk_clone(sk, newsk); } -static int selinux_inet_conn_request(struct sock *sk, struct sk_buff *skb, +static int selinux_inet_conn_request(const struct sock *sk, struct sk_buff *skb, struct request_sock *req) { struct sk_security_struct *sksec = sk->sk_security; diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index 5c90b9fa4d40..3a62d6aa74a6 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -3864,7 +3864,7 @@ static inline struct smack_known *smack_from_skb(struct sk_buff *skb) * * Returns smack_known of the IP options or NULL if that won't work. */ -static struct smack_known *smack_from_netlbl(struct sock *sk, u16 family, +static struct smack_known *smack_from_netlbl(const struct sock *sk, u16 family, struct sk_buff *skb) { struct netlbl_lsm_secattr secattr; @@ -4114,7 +4114,7 @@ static void smack_sock_graft(struct sock *sk, struct socket *parent) * Returns 0 if a task with the packet label could write to * the socket, otherwise an error code */ -static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb, +static int smack_inet_conn_request(const struct sock *sk, struct sk_buff *skb, struct request_sock *req) { u16 family = sk->sk_family;
A followup change to tcp_request_sock_op would have to drop the 'const' qualifier from the 'route_req' function as the 'security_inet_conn_request' call is moved there - and that function expects a 'struct sock *'. However, it turns out its also possible to add a const qualifier to security_inet_conn_request instead. Signed-off-by: Florian Westphal <fw@strlen.de> --- The code churn is unfortunate. Alternative would be to change the function signature of ->route_req: struct dst_entry *(*route_req)(struct sock *sk, ... [ i.e., drop 'const' ]. Thoughts? include/linux/lsm_audit.h | 2 +- include/linux/lsm_hook_defs.h | 2 +- include/linux/security.h | 4 ++-- security/apparmor/include/net.h | 2 +- security/apparmor/lsm.c | 2 +- security/apparmor/net.c | 6 +++--- security/lsm_audit.c | 4 ++-- security/security.c | 2 +- security/selinux/hooks.c | 2 +- security/smack/smack_lsm.c | 4 ++-- 10 files changed, 15 insertions(+), 15 deletions(-)