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authorJohn Johansen <john.johansen@canonical.com>2017-06-09 17:15:56 -0700
committerJohn Johansen <john.johansen@canonical.com>2017-06-10 17:11:45 -0700
commit064dc9472fa2bc31a7b178882bd7eff782c3d239 (patch)
treecb00df746773f501309f21d5da8dbf16664a0c96 /security
parentapparmor: rework file permission to cache file access in file->ctx (diff)
downloadwireguard-linux-064dc9472fa2bc31a7b178882bd7eff782c3d239.tar.xz
wireguard-linux-064dc9472fa2bc31a7b178882bd7eff782c3d239.zip
apparmor: mediate files when they are received
Signed-off-by: John Johansen <john.johansen@canonical.com>
Diffstat (limited to 'security')
-rw-r--r--security/apparmor/include/audit.h1
-rw-r--r--security/apparmor/lsm.c6
2 files changed, 7 insertions, 0 deletions
diff --git a/security/apparmor/include/audit.h b/security/apparmor/include/audit.h
index 20fa6c77db05..99ed83cf6941 100644
--- a/security/apparmor/include/audit.h
+++ b/security/apparmor/include/audit.h
@@ -64,6 +64,7 @@ enum audit_type {
#define OP_GETATTR "getattr"
#define OP_OPEN "open"
+#define OP_FRECEIVE "file_receive"
#define OP_FPERM "file_perm"
#define OP_FLOCK "file_lock"
#define OP_FMMAP "file_mmap"
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
index 7a986763b2b7..0f7c5c2be732 100644
--- a/security/apparmor/lsm.c
+++ b/security/apparmor/lsm.c
@@ -456,6 +456,11 @@ static int common_file_perm(const char *op, struct file *file, u32 mask)
return error;
}
+static int apparmor_file_receive(struct file *file)
+{
+ return common_file_perm(OP_FRECEIVE, file, aa_map_file_to_perms(file));
+}
+
static int apparmor_file_permission(struct file *file, int mask)
{
return common_file_perm(OP_FPERM, file, mask);
@@ -665,6 +670,7 @@ static struct security_hook_list apparmor_hooks[] __lsm_ro_after_init = {
LSM_HOOK_INIT(inode_getattr, apparmor_inode_getattr),
LSM_HOOK_INIT(file_open, apparmor_file_open),
+ LSM_HOOK_INIT(file_receive, apparmor_file_receive),
LSM_HOOK_INIT(file_permission, apparmor_file_permission),
LSM_HOOK_INIT(file_alloc_security, apparmor_file_alloc_security),
LSM_HOOK_INIT(file_free_security, apparmor_file_free_security),