Smack: IPv6 host labeling

[deliverable/linux.git] / security / smack / smack.h

diff --git a/security/smack/smack.h b/security/smack/smack.h
index 69ab9eb7d6d927161dc17555329526721313fe18..fff0c612bbb77be9f84254753c6b11a7572e4626 100644 (file)
--- a/security/smack/smack.h
+++ b/security/smack/smack.h
@@ -17,11 +17,26 @@
 #include <linux/spinlock.h>
 #include <linux/lsm_hooks.h>
 #include <linux/in.h>
+#if IS_ENABLED(CONFIG_IPV6)
+#include <linux/in6.h>
+#endif /* CONFIG_IPV6 */
 #include <net/netlabel.h>
 #include <linux/list.h>
 #include <linux/rculist.h>
 #include <linux/lsm_audit.h>
 
+/*
+ * Use IPv6 port labeling if IPv6 is enabled and secmarks
+ * are not being used.
+ */
+#if IS_ENABLED(CONFIG_IPV6) && !defined(CONFIG_SECURITY_SMACK_NETFILTER)
+#define SMACK_IPV6_PORT_LABELING 1
+#endif
+
+#if IS_ENABLED(CONFIG_IPV6) && defined(CONFIG_SECURITY_SMACK_NETFILTER)
+#define SMACK_IPV6_SECMARK_LABELING 1
+#endif
+
 /*
  * Smack labels were limited to 23 characters for a long time.
  */
@@ -118,15 +133,30 @@ struct smack_rule {
 };
 
 /*
- * An entry in the table identifying hosts.
+ * An entry in the table identifying IPv4 hosts.
  */
-struct smk_netlbladdr {
+struct smk_net4addr {
        struct list_head        list;
-       struct sockaddr_in      smk_host;       /* network address */
+       struct in_addr          smk_host;       /* network address */
        struct in_addr          smk_mask;       /* network mask */
+       int                     smk_masks;      /* mask size */
+       struct smack_known      *smk_label;     /* label */
+};
+
+#if IS_ENABLED(CONFIG_IPV6)
+/*
+ * An entry in the table identifying IPv6 hosts.
+ */
+struct smk_net6addr {
+       struct list_head        list;
+       struct in6_addr         smk_host;       /* network address */
+       struct in6_addr         smk_mask;       /* network mask */
+       int                     smk_masks;      /* mask size */
        struct smack_known      *smk_label;     /* label */
 };
+#endif /* CONFIG_IPV6 */
 
+#ifdef SMACK_IPV6_PORT_LABELING
 /*
  * An entry in the table identifying ports.
  */
@@ -137,6 +167,7 @@ struct smk_port_label {
        struct smack_known      *smk_in;        /* inbound label */
        struct smack_known      *smk_out;       /* outgoing label */
 };
+#endif /* SMACK_IPV6_PORT_LABELING */
 
 struct smack_onlycap {
        struct list_head        list;
@@ -170,6 +201,7 @@ enum {
 #define SMK_FSROOT     "smackfsroot="
 #define SMK_FSTRANS    "smackfstransmute="
 
+#define SMACK_DELETE_OPTION    "-DELETE"
 #define SMACK_CIPSO_OPTION     "-CIPSO"
 
 /*
@@ -252,10 +284,6 @@ struct smk_audit_info {
        struct smack_audit_data sad;
 #endif
 };
-/*
- * These functions are in smack_lsm.c
- */
-struct inode_smack *new_inode_smack(struct smack_known *);
 
 /*
  * These functions are in smack_access.c
@@ -285,7 +313,6 @@ extern struct smack_known *smack_syslog_label;
 #ifdef CONFIG_SECURITY_SMACK_BRINGUP
 extern struct smack_known *smack_unconfined;
 #endif
-extern struct smack_known smack_cipso_option;
 extern int smack_ptrace_rule;
 
 extern struct smack_known smack_known_floor;
@@ -297,7 +324,10 @@ extern struct smack_known smack_known_web;
 
 extern struct mutex    smack_known_lock;
 extern struct list_head smack_known_list;
-extern struct list_head smk_netlbladdr_list;
+extern struct list_head smk_net4addr_list;
+#if IS_ENABLED(CONFIG_IPV6)
+extern struct list_head smk_net6addr_list;
+#endif /* CONFIG_IPV6 */
 
 extern struct mutex     smack_onlycap_lock;
 extern struct list_head smack_onlycap_list;