diff options
Diffstat (limited to 'security/selinux/hooks.c')
| -rw-r--r-- | security/selinux/hooks.c | 83 |
1 files changed, 30 insertions, 53 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 4d1a54190388..7dade28affba 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -51,7 +51,6 @@ #include <linux/tty.h> #include <net/icmp.h> #include <net/ip.h> /* for local_port_range[] */ -#include <net/sock.h> #include <net/tcp.h> /* struct or_callable used in sock_rcv_skb */ #include <net/inet_connection_sock.h> #include <net/net_namespace.h> @@ -415,7 +414,7 @@ static int sb_finish_set_opts(struct super_block *sb) { struct superblock_security_struct *sbsec = sb->s_security; struct dentry *root = sb->s_root; - struct inode *root_inode = root->d_inode; + struct inode *root_inode = d_backing_inode(root); int rc = 0; if (sbsec->behavior == SECURITY_FS_USE_XATTR) { @@ -553,7 +552,7 @@ static int selinux_get_mnt_opts(const struct super_block *sb, opts->mnt_opts_flags[i++] = DEFCONTEXT_MNT; } if (sbsec->flags & ROOTCONTEXT_MNT) { - struct inode *root = sbsec->sb->s_root->d_inode; + struct inode *root = d_backing_inode(sbsec->sb->s_root); struct inode_security_struct *isec = root->i_security; rc = security_sid_to_context(isec->sid, &context, &len); @@ -609,7 +608,7 @@ static int selinux_set_mnt_opts(struct super_block *sb, int rc = 0, i; struct superblock_security_struct *sbsec = sb->s_security; const char *name = sb->s_type->name; - struct inode *inode = sbsec->sb->s_root->d_inode; + struct inode *inode = d_backing_inode(sbsec->sb->s_root); struct inode_security_struct *root_isec = inode->i_security; u32 fscontext_sid = 0, context_sid = 0, rootcontext_sid = 0; u32 defcontext_sid = 0; @@ -836,8 +835,8 @@ static int selinux_cmp_sb_context(const struct super_block *oldsb, if ((oldflags & DEFCONTEXT_MNT) && old->def_sid != new->def_sid) goto mismatch; if (oldflags & ROOTCONTEXT_MNT) { - struct inode_security_struct *oldroot = oldsb->s_root->d_inode->i_security; - struct inode_security_struct *newroot = newsb->s_root->d_inode->i_security; + struct inode_security_struct *oldroot = d_backing_inode(oldsb->s_root)->i_security; + struct inode_security_struct *newroot = d_backing_inode(newsb->s_root)->i_security; if (oldroot->sid != newroot->sid) goto mismatch; } @@ -887,16 +886,16 @@ static int selinux_sb_clone_mnt_opts(const struct super_block *oldsb, if (!set_fscontext) newsbsec->sid = sid; if (!set_rootcontext) { - struct inode *newinode = newsb->s_root->d_inode; + struct inode *newinode = d_backing_inode(newsb->s_root); struct inode_security_struct *newisec = newinode->i_security; newisec->sid = sid; } newsbsec->mntpoint_sid = sid; } if (set_rootcontext) { - const struct inode *oldinode = oldsb->s_root->d_inode; + const struct inode *oldinode = d_backing_inode(oldsb->s_root); const struct inode_security_struct *oldisec = oldinode->i_security; - struct inode *newinode = newsb->s_root->d_inode; + struct inode *newinode = d_backing_inode(newsb->s_root); struct inode_security_struct *newisec = newinode->i_security; newisec->sid = oldisec->sid; @@ -1611,7 +1610,7 @@ static inline int dentry_has_perm(const struct cred *cred, struct dentry *dentry, u32 av) { - struct inode *inode = dentry->d_inode; + struct inode *inode = d_backing_inode(dentry); struct common_audit_data ad; ad.type = LSM_AUDIT_DATA_DENTRY; @@ -1623,10 +1622,10 @@ static inline int dentry_has_perm(const struct cred *cred, the path to help the auditing code to more easily generate the pathname if needed. */ static inline int path_has_perm(const struct cred *cred, - struct path *path, + const struct path *path, u32 av) { - struct inode *inode = path->dentry->d_inode; + struct inode *inode = d_backing_inode(path->dentry); struct common_audit_data ad; ad.type = LSM_AUDIT_DATA_PATH; @@ -1754,7 +1753,7 @@ static int may_link(struct inode *dir, int rc; dsec = dir->i_security; - isec = dentry->d_inode->i_security; + isec = d_backing_inode(dentry)->i_security; ad.type = LSM_AUDIT_DATA_DENTRY; ad.u.dentry = dentry; @@ -1798,7 +1797,7 @@ static inline int may_rename(struct inode *old_dir, int rc; old_dsec = old_dir->i_security; - old_isec = old_dentry->d_inode->i_security; + old_isec = d_backing_inode(old_dentry)->i_security; old_is_dir = d_is_dir(old_dentry); new_dsec = new_dir->i_security; @@ -1828,7 +1827,7 @@ static inline int may_rename(struct inode *old_dir, if (rc) return rc; if (d_is_positive(new_dentry)) { - new_isec = new_dentry->d_inode->i_security; + new_isec = d_backing_inode(new_dentry)->i_security; new_is_dir = d_is_dir(new_dentry); rc = avc_has_perm(sid, new_isec->sid, new_isec->sclass, @@ -1964,7 +1963,7 @@ static int selinux_binder_transfer_file(struct task_struct *from, { u32 sid = task_sid(to); struct file_security_struct *fsec = file->f_security; - struct inode *inode = file->f_path.dentry->d_inode; + struct inode *inode = d_backing_inode(file->f_path.dentry); struct inode_security_struct *isec = inode->i_security; struct common_audit_data ad; int rc; @@ -2628,7 +2627,7 @@ static int selinux_sb_remount(struct super_block *sb, void *data) break; case ROOTCONTEXT_MNT: { struct inode_security_struct *root_isec; - root_isec = sb->s_root->d_inode->i_security; + root_isec = d_backing_inode(sb->s_root)->i_security; if (bad_option(sbsec, ROOTCONTEXT_MNT, root_isec->sid, sid)) goto out_bad_option; @@ -2728,7 +2727,7 @@ static int selinux_dentry_init_security(struct dentry *dentry, int mode, struct task_security_struct *tsec; struct inode_security_struct *dsec; struct superblock_security_struct *sbsec; - struct inode *dir = dentry->d_parent->d_inode; + struct inode *dir = d_backing_inode(dentry->d_parent); u32 newsid; int rc; @@ -2954,15 +2953,9 @@ static int selinux_inode_setattr(struct dentry *dentry, struct iattr *iattr) return dentry_has_perm(cred, dentry, av); } -static int selinux_inode_getattr(struct vfsmount *mnt, struct dentry *dentry) +static int selinux_inode_getattr(const struct path *path) { - const struct cred *cred = current_cred(); - struct path path; - - path.dentry = dentry; - path.mnt = mnt; - - return path_has_perm(cred, &path, FILE__GETATTR); + return path_has_perm(current_cred(), path, FILE__GETATTR); } static int selinux_inode_setotherxattr(struct dentry *dentry, const char *name) @@ -2989,7 +2982,7 @@ static int selinux_inode_setotherxattr(struct dentry *dentry, const char *name) static int selinux_inode_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags) { - struct inode *inode = dentry->d_inode; + struct inode *inode = d_backing_inode(dentry); struct inode_security_struct *isec = inode->i_security; struct superblock_security_struct *sbsec; struct common_audit_data ad; @@ -3066,7 +3059,7 @@ static void selinux_inode_post_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags) { - struct inode *inode = dentry->d_inode; + struct inode *inode = d_backing_inode(dentry); struct inode_security_struct *isec = inode->i_security; u32 newsid; int rc; @@ -4652,11 +4645,6 @@ static void selinux_inet_conn_established(struct sock *sk, struct sk_buff *skb) selinux_skb_peerlbl_sid(skb, family, &sksec->peer_sid); } -static void selinux_skb_owned_by(struct sk_buff *skb, struct sock *sk) -{ - skb_set_owner_w(skb, sk); -} - static int selinux_secmark_relabel_packet(u32 sid) { const struct task_security_struct *__tsec; @@ -4858,21 +4846,17 @@ static unsigned int selinux_ip_forward(struct sk_buff *skb, static unsigned int selinux_ipv4_forward(const struct nf_hook_ops *ops, struct sk_buff *skb, - const struct net_device *in, - const struct net_device *out, - int (*okfn)(struct sk_buff *)) + const struct nf_hook_state *state) { - return selinux_ip_forward(skb, in, PF_INET); + return selinux_ip_forward(skb, state->in, PF_INET); } #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) static unsigned int selinux_ipv6_forward(const struct nf_hook_ops *ops, struct sk_buff *skb, - const struct net_device *in, - const struct net_device *out, - int (*okfn)(struct sk_buff *)) + const struct nf_hook_state *state) { - return selinux_ip_forward(skb, in, PF_INET6); + return selinux_ip_forward(skb, state->in, PF_INET6); } #endif /* IPV6 */ @@ -4920,9 +4904,7 @@ static unsigned int selinux_ip_output(struct sk_buff *skb, static unsigned int selinux_ipv4_output(const struct nf_hook_ops *ops, struct sk_buff *skb, - const struct net_device *in, - const struct net_device *out, - int (*okfn)(struct sk_buff *)) + const struct nf_hook_state *state) { return selinux_ip_output(skb, PF_INET); } @@ -5097,21 +5079,17 @@ static unsigned int selinux_ip_postroute(struct sk_buff *skb, static unsigned int selinux_ipv4_postroute(const struct nf_hook_ops *ops, struct sk_buff *skb, - const struct net_device *in, - const struct net_device *out, - int (*okfn)(struct sk_buff *)) + const struct nf_hook_state *state) { - return selinux_ip_postroute(skb, out, PF_INET); + return selinux_ip_postroute(skb, state->out, PF_INET); } #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) static unsigned int selinux_ipv6_postroute(const struct nf_hook_ops *ops, struct sk_buff *skb, - const struct net_device *in, - const struct net_device *out, - int (*okfn)(struct sk_buff *)) + const struct nf_hook_state *state) { - return selinux_ip_postroute(skb, out, PF_INET6); + return selinux_ip_postroute(skb, state->out, PF_INET6); } #endif /* IPV6 */ @@ -6041,7 +6019,6 @@ static struct security_operations selinux_ops = { .tun_dev_attach_queue = selinux_tun_dev_attach_queue, .tun_dev_attach = selinux_tun_dev_attach, .tun_dev_open = selinux_tun_dev_open, - .skb_owned_by = selinux_skb_owned_by, #ifdef CONFIG_SECURITY_NETWORK_XFRM .xfrm_policy_alloc_security = selinux_xfrm_policy_alloc, |