clarify usage of shutdown signals

[l2tpns.git] / bgp.h

diff --git a/bgp.h b/bgp.h
index 1c33ce6..55b0ee3 100644 (file)
--- a/bgp.h
+++ b/bgp.h
@@ -1,5 +1,5 @@
 /* BGPv4 (RFC1771) */
-/* $Id: bgp.h,v 1.2 2004-06-28 02:43:13 fred_nerk Exp $ */
+/* $Id: bgp.h,v 1.5 2005-06-04 15:42:35 bodea Exp $ */
 
 #ifndef __BGP_H__
 #define __BGP_H__
@@ -7,6 +7,7 @@
 #define BGP_MAX_PACKET_SIZE    4096
 #define BGP_HOLD_TIME          180     /* seconds before peer times us out */
 #define BGP_KEEPALIVE_TIME     60      /* seconds between messages */
+#define BGP_STATE_TIME         60      /* state transition timeout in seconds */
 #define BGP_MAX_RETRY          42      /* maximum number of times to retry */
 #define BGP_RETRY_BACKOFF      60      /* number of seconds between retries,
                                           cumulative */
@@ -16,8 +17,8 @@
 
 struct bgp_header {
     char marker[16];
-    u16 len;
-    u8 type;
+    uint16_t len;
+    uint8_t type;
 } __attribute__ ((packed));
 
 /* bgp_header.type */
@@ -32,33 +33,33 @@ struct bgp_packet {
 } __attribute__ ((packed));
 
 struct bgp_data_open {
-    u8 version;
+    uint8_t version;
 #define BGP_VERSION    4
-    u16 as;
-    u16 hold_time;
-    u32 identifier;
-    u8 opt_len;
+    uint16_t as;
+    uint16_t hold_time;
+    uint32_t identifier;
+    uint8_t opt_len;
 #define BGP_DATA_OPEN_SIZE     10 /* size of struct excluding opt_params */
     char opt_params[sizeof(((struct bgp_packet *)0)->data) - BGP_DATA_OPEN_SIZE]; /* variable */
 } __attribute__ ((packed));
 
 struct bgp_ip_prefix {
-    u8 len;
-    u32 prefix; /* variable */
+    uint8_t len;
+    uint32_t prefix; /* variable */
 } __attribute__ ((packed));
 
 #define BGP_IP_PREFIX_SIZE(p) (1 + ((p).len / 8) + ((p).len % 8 != 0))
 
 struct bgp_path_attr {
-    u8 flags;
-    u8 code;
+    uint8_t flags;
+    uint8_t code;
     union {
        struct {
-           u8 len;
+           uint8_t len;
            char value[29];             /* semi-random size, adequate for l2tpns */
        } __attribute__ ((packed)) s;   /* short */
        struct {
-           u16 len;
+           uint16_t len;
            char value[28];
        } __attribute__ ((packed)) e;   /* extended */
     } data; /* variable */
@@ -94,8 +95,8 @@ struct bgp_path_attr {
 #define BGP_COMMUNITY_NO_EXPORT_SUBCONFED      0xffffff03      /* don't advertise to any other AS */
 
 struct bgp_data_notification {
-    u8 error_code;
-    u8 error_subcode;
+    uint8_t error_code;
+    uint8_t error_subcode;
     char data[sizeof(((struct bgp_packet *)0)->data) - 2]; /* variable */
 } __attribute__ ((packed));
 
@@ -159,7 +160,10 @@ struct bgp_peer {
     time_t keepalive_time;             /* time to send next keepalive */
     time_t retry_time;                 /* time for connection retry */
     int retry_count;                   /* connection retry count */
-    int hold;                          /* hold time from peer */
+    int init_keepalive;                        /* initial keepalive time */
+    int init_hold;                     /* initial hold time */
+    int keepalive;                     /* negotiated keepalive time */
+    int hold;                          /* negotiated hold time */
     time_t expire_time;                        /* time next peer packet expected */
     int routing;                       /* propagate routes */
     int update_routes;                 /* UPDATE required */
@@ -169,6 +173,8 @@ struct bgp_peer {
     int cli_flag;                      /* updates requested from CLI */
     char *path_attrs;                  /* path attrs to send in UPDATE message */
     int path_attr_len;                 /* length of path attrs */
+    uint32_t events;                   /* events to poll */
+    struct event_data edata;           /* poll data */
 };
 
 /* bgp_peer.cli_flag */
@@ -176,28 +182,23 @@ struct bgp_peer {
 #define BGP_CLI_ENABLE         2
 #define BGP_CLI_RESTART                3
 
-#define BGP_NUM_PEERS 2
 extern struct bgp_peer *bgp_peers;
-extern struct bgp_route_list *bgp_routes;
 extern int bgp_configured;
 
 /* actions */
 int bgp_setup(int as);
-int bgp_start(struct bgp_peer *peer, char *name, int as, int enable);
+int bgp_start(struct bgp_peer *peer, char *name, int as, int keepalive,
+    int hold, int enable);
+
 void bgp_stop(struct bgp_peer *peer);
 void bgp_halt(struct bgp_peer *peer);
 int bgp_restart(struct bgp_peer *peer);
 int bgp_add_route(in_addr_t ip, in_addr_t mask);
 int bgp_del_route(in_addr_t ip, in_addr_t mask);
 void bgp_enable_routing(int enable);
-int bgp_select_state(struct bgp_peer *peer);
-int bgp_process(struct bgp_peer *peer, int readable, int writable);
-
-/* CLI */
-int cmd_show_bgp(struct cli_def *cli, char *command, char **argv, int argc);
-int cmd_suspend_bgp(struct cli_def *cli, char *command, char **argv, int argc);
-int cmd_no_suspend_bgp(struct cli_def *cli, char *command, char **argv, int argc);
-int cmd_restart_bgp(struct cli_def *cli, char *command, char **argv, int argc);
+int bgp_set_poll(void);
+int bgp_process(uint32_t events[]);
+char const *bgp_state_str(enum bgp_state state);
 
 extern char const *cvs_id_bgp;