diff options
| author | Eric Paris <eparis@redhat.com> | 2008-02-28 17:58:40 (GMT) |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2008-04-18 10:26:06 (GMT) |
| commit | b0c636b99997c8594da6a46e166ce4fcf6956fda (patch) | |
| tree | 16308f0324846cd8c19180b6a45793268dd16f50 /security/selinux/include | |
| parent | d4ee4231a3a8731576ef0e0a7e1225e4fde1e659 (diff) | |
| download | linux-b0c636b99997c8594da6a46e166ce4fcf6956fda.tar.xz | |
SELinux: create new open permission
Adds a new open permission inside SELinux when 'opening' a file. The idea
is that opening a file and reading/writing to that file are not the same
thing. Its different if a program had its stdout redirected to /tmp/output
than if the program tried to directly open /tmp/output. This should allow
policy writers to more liberally give read/write permissions across the
policy while still blocking many design and programing flaws SELinux is so
good at catching today.
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Reviewed-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/selinux/include')
| -rw-r--r-- | security/selinux/include/av_perm_to_string.h | 5 | ||||
| -rw-r--r-- | security/selinux/include/av_permissions.h | 5 | ||||
| -rw-r--r-- | security/selinux/include/security.h | 2 |
3 files changed, 12 insertions, 0 deletions
diff --git a/security/selinux/include/av_perm_to_string.h b/security/selinux/include/av_perm_to_string.h index d569669..1223b4f 100644 --- a/security/selinux/include/av_perm_to_string.h +++ b/security/selinux/include/av_perm_to_string.h @@ -14,12 +14,17 @@ S_(SECCLASS_DIR, DIR__REPARENT, "reparent") S_(SECCLASS_DIR, DIR__SEARCH, "search") S_(SECCLASS_DIR, DIR__RMDIR, "rmdir") + S_(SECCLASS_DIR, DIR__OPEN, "open") S_(SECCLASS_FILE, FILE__EXECUTE_NO_TRANS, "execute_no_trans") S_(SECCLASS_FILE, FILE__ENTRYPOINT, "entrypoint") S_(SECCLASS_FILE, FILE__EXECMOD, "execmod") + S_(SECCLASS_FILE, FILE__OPEN, "open") S_(SECCLASS_CHR_FILE, CHR_FILE__EXECUTE_NO_TRANS, "execute_no_trans") S_(SECCLASS_CHR_FILE, CHR_FILE__ENTRYPOINT, "entrypoint") S_(SECCLASS_CHR_FILE, CHR_FILE__EXECMOD, "execmod") + S_(SECCLASS_CHR_FILE, CHR_FILE__OPEN, "open") + S_(SECCLASS_BLK_FILE, BLK_FILE__OPEN, "open") + S_(SECCLASS_FIFO_FILE, FIFO_FILE__OPEN, "open") S_(SECCLASS_FD, FD__USE, "use") S_(SECCLASS_TCP_SOCKET, TCP_SOCKET__CONNECTTO, "connectto") S_(SECCLASS_TCP_SOCKET, TCP_SOCKET__NEWCONN, "newconn") diff --git a/security/selinux/include/av_permissions.h b/security/selinux/include/av_permissions.h index 75b4131..c4c5116 100644 --- a/security/selinux/include/av_permissions.h +++ b/security/selinux/include/av_permissions.h @@ -79,6 +79,7 @@ #define DIR__REPARENT 0x00080000UL #define DIR__SEARCH 0x00100000UL #define DIR__RMDIR 0x00200000UL +#define DIR__OPEN 0x00400000UL #define FILE__IOCTL 0x00000001UL #define FILE__READ 0x00000002UL #define FILE__WRITE 0x00000004UL @@ -99,6 +100,7 @@ #define FILE__EXECUTE_NO_TRANS 0x00020000UL #define FILE__ENTRYPOINT 0x00040000UL #define FILE__EXECMOD 0x00080000UL +#define FILE__OPEN 0x00100000UL #define LNK_FILE__IOCTL 0x00000001UL #define LNK_FILE__READ 0x00000002UL #define LNK_FILE__WRITE 0x00000004UL @@ -136,6 +138,7 @@ #define CHR_FILE__EXECUTE_NO_TRANS 0x00020000UL #define CHR_FILE__ENTRYPOINT 0x00040000UL #define CHR_FILE__EXECMOD 0x00080000UL +#define CHR_FILE__OPEN 0x00100000UL #define BLK_FILE__IOCTL 0x00000001UL #define BLK_FILE__READ 0x00000002UL #define BLK_FILE__WRITE 0x00000004UL @@ -153,6 +156,7 @@ #define BLK_FILE__SWAPON 0x00004000UL #define BLK_FILE__QUOTAON 0x00008000UL #define BLK_FILE__MOUNTON 0x00010000UL +#define BLK_FILE__OPEN 0x00020000UL #define SOCK_FILE__IOCTL 0x00000001UL #define SOCK_FILE__READ 0x00000002UL #define SOCK_FILE__WRITE 0x00000004UL @@ -187,6 +191,7 @@ #define FIFO_FILE__SWAPON 0x00004000UL #define FIFO_FILE__QUOTAON 0x00008000UL #define FIFO_FILE__MOUNTON 0x00010000UL +#define FIFO_FILE__OPEN 0x00020000UL #define FD__USE 0x00000001UL #define SOCKET__IOCTL 0x00000001UL #define SOCKET__READ 0x00000002UL diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h index 44e12ec..315b4ec 100644 --- a/security/selinux/include/security.h +++ b/security/selinux/include/security.h @@ -48,11 +48,13 @@ extern int selinux_mls_enabled; /* Policy capabilities */ enum { POLICYDB_CAPABILITY_NETPEER, + POLICYDB_CAPABILITY_OPENPERM, __POLICYDB_CAPABILITY_MAX }; #define POLICYDB_CAPABILITY_MAX (__POLICYDB_CAPABILITY_MAX - 1) extern int selinux_policycap_netpeer; +extern int selinux_policycap_openperm; int security_load_policy(void * data, size_t len); |