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-rw-r--r--include/net/sctp/constants.h7
-rw-r--r--include/net/sctp/structs.h10
2 files changed, 17 insertions, 0 deletions
diff --git a/include/net/sctp/constants.h b/include/net/sctp/constants.h
index af8c1508109e..58f714a3b670 100644
--- a/include/net/sctp/constants.h
+++ b/include/net/sctp/constants.h
@@ -363,6 +363,13 @@ typedef enum {
SCTP_SCOPE_UNUSABLE, /* IPv4 unusable addresses */
} sctp_scope_t;
+typedef enum {
+ SCTP_SCOPE_POLICY_DISABLE, /* Disable IPv4 address scoping */
+ SCTP_SCOPE_POLICY_ENABLE, /* Enable IPv4 address scoping */
+ SCTP_SCOPE_POLICY_PRIVATE, /* Follow draft but allow IPv4 private addresses */
+ SCTP_SCOPE_POLICY_LINK, /* Follow draft but allow IPv4 link local addresses */
+} sctp_scope_policy_t;
+
/* Based on IPv4 scoping <draft-stewart-tsvwg-sctp-ipv4-00.txt>,
* SCTP IPv4 unusable addresses: 0.0.0.0/8, 224.0.0.0/4, 198.18.0.0/24,
* 192.88.99.0/24.
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 993cfff9218e..a48d80e77cd7 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -219,6 +219,15 @@ extern struct sctp_globals {
/* Flag to idicate if SCTP-AUTH is enabled */
int auth_enable;
+ /*
+ * Policy to control SCTP IPv4 address scoping
+ * 0 - Disable IPv4 address scoping
+ * 1 - Enable IPv4 address scoping
+ * 2 - Selectively allow only IPv4 private addresses
+ * 3 - Selectively allow only IPv4 link local address
+ */
+ int ipv4_scope_policy;
+
/* Flag to indicate whether computing and verifying checksum
* is disabled. */
int checksum_disable;
@@ -252,6 +261,7 @@ extern struct sctp_globals {
#define sctp_port_hashtable (sctp_globals.port_hashtable)
#define sctp_local_addr_list (sctp_globals.local_addr_list)
#define sctp_local_addr_lock (sctp_globals.addr_list_lock)
+#define sctp_scope_policy (sctp_globals.ipv4_scope_policy)
#define sctp_addip_enable (sctp_globals.addip_enable)
#define sctp_addip_noauth (sctp_globals.addip_noauth_enable)
#define sctp_prsctp_enable (sctp_globals.prsctp_enable)