This patch exports adds a new function to the in-kernel
SELinux API: selinux_string_to_sid(). It maps a text
security context to an SELiux security ID (SID).
Signed-off-by: James Morris <[EMAIL PROTECTED]>
---
include/linux/selinux.h | 16 ++++++++++++++++
security/selinux/exports.c | 11 +++++++++++
2 files changed, 27 insertions(+)
diff -purN -X dontdiff linux-2.6.17-rc2-mm1.p/include/linux/selinux.h
linux-2.6.17-rc2-mm1.w/include/linux/selinux.h
--- linux-2.6.17-rc2-mm1.p/include/linux/selinux.h 2006-04-27
10:44:26.000000000 -0400
+++ linux-2.6.17-rc2-mm1.w/include/linux/selinux.h 2006-04-28
00:53:27.000000000 -0400
@@ -118,6 +118,16 @@ void selinux_get_ipc_sid(const struct ke
*/
void selinux_get_task_sid(struct task_struct *tsk, u32 *sid);
+/**
+ * selinux_string_to_sid - map a security context string to a security ID
+ * @str: the security context string to be mapped
+ * @sid: ID value returned via this.
+ *
+ * Returns 0 if successful, with the SID stored in sid. A value
+ * of zero for sid indicates no SID could be determined (but no error
+ * occurred).
+ */
+int selinux_string_to_sid(char *str, u32 *sid);
#else
@@ -172,6 +182,12 @@ static inline void selinux_get_task_sid(
*sid = 0;
}
+static inline int selinux_string_to_sid(const char *str, u32 *sid)
+{
+ *sid = 0;
+ return 0;
+}
+
#endif /* CONFIG_SECURITY_SELINUX */
#endif /* _LINUX_SELINUX_H */
diff -purN -X dontdiff linux-2.6.17-rc2-mm1.p/security/selinux/exports.c
linux-2.6.17-rc2-mm1.w/security/selinux/exports.c
--- linux-2.6.17-rc2-mm1.p/security/selinux/exports.c 2006-04-27
10:44:26.000000000 -0400
+++ linux-2.6.17-rc2-mm1.w/security/selinux/exports.c 2006-04-28
00:51:25.000000000 -0400
@@ -72,3 +72,14 @@ void selinux_get_task_sid(struct task_st
*sid = 0;
}
+int selinux_string_to_sid(char *str, u32 *sid)
+{
+ if (selinux_enabled)
+ return security_context_to_sid(str, strlen(str), sid);
+ else {
+ *sid = 0;
+ return 0;
+ }
+}
+EXPORT_SYMBOL_GPL(selinux_string_to_sid);
+
-
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