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| author | Paul Moore <paul.moore@hp.com> | 2006-08-29 17:53:48 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-09-22 15:18:34 -0700 |
| commit | 99f59ed073d3c1b890690064ab285a201dea2e35 (patch) | |
| tree | 0f6ae012cf4f988d3ae0c665fd3b12ea05409ec8 /security/selinux/ss/services.c | |
| parent | fc747e82b40ea50a62eb2aef55bedd4465607cb0 (diff) | |
| download | linux-99f59ed073d3c1b890690064ab285a201dea2e35.tar.gz linux-99f59ed073d3c1b890690064ab285a201dea2e35.tar.bz2 linux-99f59ed073d3c1b890690064ab285a201dea2e35.zip | |
[NetLabel]: Correctly initialize the NetLabel fields.
Fix a problem where the NetLabel specific fields of the sk_security_struct
structure were not being initialized early enough in some cases.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'security/selinux/ss/services.c')
| -rw-r--r-- | security/selinux/ss/services.c | 45 |
1 files changed, 43 insertions, 2 deletions
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c index 910afa1ffc31..835b485b2afd 100644 --- a/security/selinux/ss/services.c +++ b/security/selinux/ss/services.c @@ -2423,6 +2423,45 @@ netlbl_socket_setsid_return: } /** + * selinux_netlbl_sk_security_init - Setup the NetLabel fields + * @ssec: the sk_security_struct + * @family: the socket family + * + * Description: + * Called when a new sk_security_struct is allocated to initialize the NetLabel + * fields. + * + */ +void selinux_netlbl_sk_security_init(struct sk_security_struct *ssec, + int family) +{ + if (family == PF_INET) + ssec->nlbl_state = NLBL_REQUIRE; + else + ssec->nlbl_state = NLBL_UNSET; +} + +/** + * selinux_netlbl_sk_clone_security - Copy the NetLabel fields + * @ssec: the original sk_security_struct + * @newssec: the cloned sk_security_struct + * + * Description: + * Clone the NetLabel specific sk_security_struct fields from @ssec to + * @newssec. + * + */ +void selinux_netlbl_sk_clone_security(struct sk_security_struct *ssec, + struct sk_security_struct *newssec) +{ + newssec->sclass = ssec->sclass; + if (ssec->nlbl_state != NLBL_UNSET) + newssec->nlbl_state = NLBL_REQUIRE; + else + newssec->nlbl_state = NLBL_UNSET; +} + +/** * selinux_netlbl_socket_post_create - Label a socket using NetLabel * @sock: the socket to label * @sock_family: the socket family @@ -2440,10 +2479,11 @@ int selinux_netlbl_socket_post_create(struct socket *sock, struct inode_security_struct *isec = SOCK_INODE(sock)->i_security; struct sk_security_struct *sksec = sock->sk->sk_security; + sksec->sclass = isec->sclass; + if (sock_family != PF_INET) return 0; - sksec->sclass = isec->sclass; sksec->nlbl_state = NLBL_REQUIRE; return selinux_netlbl_socket_setsid(sock, sid); } @@ -2463,12 +2503,13 @@ void selinux_netlbl_sock_graft(struct sock *sk, struct socket *sock) struct inode_security_struct *isec = SOCK_INODE(sock)->i_security; struct sk_security_struct *sksec = sk->sk_security; + sksec->sclass = isec->sclass; + if (sk->sk_family != PF_INET) return; sksec->nlbl_state = NLBL_REQUIRE; sksec->peer_sid = sksec->sid; - sksec->sclass = isec->sclass; /* Try to set the NetLabel on the socket to save time later, if we fail * here we will pick up the pieces in later calls to |