diff options
Diffstat (limited to 'security')
| -rw-r--r-- | security/capability.c | 17 | ||||
| -rw-r--r-- | security/security.c | 18 | ||||
| -rw-r--r-- | security/selinux/hooks.c | 29 | ||||
| -rw-r--r-- | security/smack/smack_lsm.c | 24 |
4 files changed, 88 insertions, 0 deletions
diff --git a/security/capability.c b/security/capability.c index 93a2ffe6590..fce07a7bc82 100644 --- a/security/capability.c +++ b/security/capability.c @@ -822,6 +822,20 @@ static void cap_release_secctx(char *secdata, u32 seclen) { } +static int cap_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) +{ + return 0; +} + +static int cap_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) +{ + return 0; +} + +static int cap_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) +{ + return 0; +} #ifdef CONFIG_KEYS static int cap_key_alloc(struct key *key, const struct cred *cred, unsigned long flags) @@ -1032,6 +1046,9 @@ void security_fixup_ops(struct security_operations *ops) set_to_cap_if_null(ops, secid_to_secctx); set_to_cap_if_null(ops, secctx_to_secid); set_to_cap_if_null(ops, release_secctx); + set_to_cap_if_null(ops, inode_notifysecctx); + set_to_cap_if_null(ops, inode_setsecctx); + set_to_cap_if_null(ops, inode_getsecctx); #ifdef CONFIG_SECURITY_NETWORK set_to_cap_if_null(ops, unix_stream_connect); set_to_cap_if_null(ops, unix_may_send); diff --git a/security/security.c b/security/security.c index d8b727637f0..c4c673240c1 100644 --- a/security/security.c +++ b/security/security.c @@ -974,6 +974,24 @@ void security_release_secctx(char *secdata, u32 seclen) } EXPORT_SYMBOL(security_release_secctx); +int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) +{ + return security_ops->inode_notifysecctx(inode, ctx, ctxlen); +} +EXPORT_SYMBOL(security_inode_notifysecctx); + +int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) +{ + return security_ops->inode_setsecctx(dentry, ctx, ctxlen); +} +EXPORT_SYMBOL(security_inode_setsecctx); + +int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) +{ + return security_ops->inode_getsecctx(inode, ctx, ctxlen); +} +EXPORT_SYMBOL(security_inode_getsecctx); + #ifdef CONFIG_SECURITY_NETWORK int security_unix_stream_connect(struct socket *sock, struct socket *other, diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 134a9c0d200..7118be2a74a 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -5351,6 +5351,32 @@ static void selinux_release_secctx(char *secdata, u32 seclen) kfree(secdata); } +/* + * called with inode->i_mutex locked + */ +static int selinux_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) +{ + return selinux_inode_setsecurity(inode, XATTR_SELINUX_SUFFIX, ctx, ctxlen, 0); +} + +/* + * called with inode->i_mutex locked + */ +static int selinux_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) +{ + return __vfs_setxattr_noperm(dentry, XATTR_NAME_SELINUX, ctx, ctxlen, 0); +} + +static int selinux_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) +{ + int len = 0; + len = selinux_inode_getsecurity(inode, XATTR_SELINUX_SUFFIX, + ctx, true); + if (len < 0) + return len; + *ctxlen = len; + return 0; +} #ifdef CONFIG_KEYS static int selinux_key_alloc(struct key *k, const struct cred *cred, @@ -5550,6 +5576,9 @@ static struct security_operations selinux_ops = { .secid_to_secctx = selinux_secid_to_secctx, .secctx_to_secid = selinux_secctx_to_secid, .release_secctx = selinux_release_secctx, + .inode_notifysecctx = selinux_inode_notifysecctx, + .inode_setsecctx = selinux_inode_setsecctx, + .inode_getsecctx = selinux_inode_getsecctx, .unix_stream_connect = selinux_socket_unix_stream_connect, .unix_may_send = selinux_socket_unix_may_send, diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index 969f5fee190..0b3bb646f90 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -3057,6 +3057,27 @@ static void smack_release_secctx(char *secdata, u32 seclen) { } +static int smack_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) +{ + return smack_inode_setsecurity(inode, XATTR_SMACK_SUFFIX, ctx, ctxlen, 0); +} + +static int smack_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) +{ + return __vfs_setxattr_noperm(dentry, XATTR_NAME_SMACK, ctx, ctxlen, 0); +} + +static int smack_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) +{ + int len = 0; + len = smack_inode_getsecurity(inode, XATTR_SMACK_SUFFIX, ctx, true); + + if (len < 0) + return len; + *ctxlen = len; + return 0; +} + struct security_operations smack_ops = { .name = "smack", @@ -3185,6 +3206,9 @@ struct security_operations smack_ops = { .secid_to_secctx = smack_secid_to_secctx, .secctx_to_secid = smack_secctx_to_secid, .release_secctx = smack_release_secctx, + .inode_notifysecctx = smack_inode_notifysecctx, + .inode_setsecctx = smack_inode_setsecctx, + .inode_getsecctx = smack_inode_getsecctx, }; |