[PATCH net-next 04/15] security: Add Linux Security Modules hook for AF_BUS sockets
From: Vincent Sanders <hidden>
Date: 2012-06-29 16:46:32
Also in:
lkml
Subsystem:
security subsystem, the rest · Maintainers:
Paul Moore, James Morris, "Serge E. Hallyn", Linus Torvalds
From: Javier Martinez Canillas <redacted> AF_BUS implements a security hook bus_connect() to be used by LSM to enforce connectivity security policies. Signed-off-by: Javier Martinez Canillas <redacted> Signed-off-by: Vincent Sanders <redacted> --- include/linux/security.h | 11 +++++++++++ security/capability.c | 7 +++++++ security/security.c | 7 +++++++ 3 files changed, 25 insertions(+)
diff --git a/include/linux/security.h b/include/linux/security.h
index 4e5a73c..d30dc4a 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h@@ -1578,6 +1578,8 @@ struct security_operations { #ifdef CONFIG_SECURITY_NETWORK int (*unix_stream_connect) (struct sock *sock, struct sock *other, struct sock *newsk); + int (*bus_connect) (struct sock *sock, struct sock *other, + struct sock *newsk); int (*unix_may_send) (struct socket *sock, struct socket *other); int (*socket_create) (int family, int type, int protocol, int kern);
@@ -2519,6 +2521,8 @@ static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 #ifdef CONFIG_SECURITY_NETWORK int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk); +int security_bus_connect(struct sock *sock, struct sock *other, + struct sock *newsk); int security_unix_may_send(struct socket *sock, struct socket *other); int security_socket_create(int family, int type, int protocol, int kern); int security_socket_post_create(struct socket *sock, int family,
@@ -2566,6 +2570,13 @@ static inline int security_unix_stream_connect(struct sock *sock, return 0; } +static inline int security_bus_connect(struct socket *sock, + struct sock *other, + struct sock *newsk) +{ + return 0; +} + static inline int security_unix_may_send(struct socket *sock, struct socket *other) {
diff --git a/security/capability.c b/security/capability.c
index 61095df..ea57f2b 100644
--- a/security/capability.c
+++ b/security/capability.c@@ -563,6 +563,12 @@ static int cap_unix_may_send(struct socket *sock, struct socket *other) return 0; } +static int cap_bus_connect(struct sock *sock, struct sock *other, + struct sock *newsk) +{ + return 0; +} + static int cap_socket_create(int family, int type, int protocol, int kern) { return 0;
@@ -1016,6 +1022,7 @@ void __init security_fixup_ops(struct security_operations *ops) #ifdef CONFIG_SECURITY_NETWORK set_to_cap_if_null(ops, unix_stream_connect); set_to_cap_if_null(ops, unix_may_send); + set_to_cap_if_null(ops, bus_connect); set_to_cap_if_null(ops, socket_create); set_to_cap_if_null(ops, socket_post_create); set_to_cap_if_null(ops, socket_bind);
diff --git a/security/security.c b/security/security.c
index 3efc9b1..00ab7df 100644
--- a/security/security.c
+++ b/security/security.c@@ -1059,6 +1059,13 @@ int security_unix_may_send(struct socket *sock, struct socket *other) } EXPORT_SYMBOL(security_unix_may_send); +int security_bus_connect(struct sock *sock, struct sock *other, + struct sock *newsk) +{ + return security_ops->bus_connect(sock, other, newsk); +} +EXPORT_SYMBOL(security_bus_connect); + int security_socket_create(int family, int type, int protocol, int kern) { return security_ops->socket_create(family, type, protocol, kern);
--
1.7.10