Makefile.in: Move settings of various directories above CFLAGS etc.

[secnet.git] / comm-common.h

diff --git a/comm-common.h b/comm-common.h
index 2c2d26ab42e058c9d23abb9846c73fcc32a5c6ee..5ab6e467f4ed2c5ed105404dc6193d0e742119a4 100644 (file)
--- a/comm-common.h
+++ b/comm-common.h
@@ -4,6 +4,8 @@
 
 #include "secnet.h"
 
+/*----- for all comms -----*/
+
 struct comm_notify_entry {
     comm_notify_fn *fn;
     void *state;
@@ -47,4 +49,54 @@ void comm_apply(struct commcommon *cc);
     dict_t *d=item->data.dict;                                         \
     (cc)->rbuf=find_cl_if(d,"buffer",CL_BUFFER,True,desc,(cc)->loc)
 
+/*----- for udp-based comms -----*/
+
+#define UDP_MAX_SOCKETS 3 /* 2 ought to do really */
+
+#define MAX_AF (AF_INET6>AF_INET?AF_INET6:AF_INET)
+
+struct udpsock {
+    union iaddr addr;
+    int fd;
+    bool_t experienced[/*0=recv,1=send*/2][MAX_AF+1][/*success?*/2];
+};
+
+struct udpsocks {
+    int n_socks;
+    struct udpsock socks[UDP_MAX_SOCKETS];
+    /* private for udp_socks_* */
+    struct udpcommon *uc; /* link to parent, for cfg, notify list, etc. */
+    struct poll_interest *interest;
+};
+
+struct udpcommon {
+    struct commcommon cc;
+    int port;
+    string_t authbind;
+    bool_t use_proxy;
+    union iaddr proxy;
+};
+
+bool_t udp_make_socket(struct udpcommon *uc, struct udpsock *us,
+                      int failmsgclass);
+  /* Fills in us->fd.  Logs any errors with lg_[v]perror. */
+
+void udp_destroy_socket(struct udpcommon *uc, struct udpsock *us);
+  /* Idempotent.  No errors are possible. */
+
+const char *af_name(int af);
+void udp_sock_experienced(struct log_if *lg, struct udpcommon *uc,
+                         const char *socksdesc, struct udpsock *us,
+                         bool_t recvsend, int af /* 0 means any */,
+                         int r, int errnoval);
+
+void udp_socks_register(struct udpcommon *uc, struct udpsocks *socks);
+void udp_socks_deregister(struct udpcommon *uc, struct udpsocks *socks);
+
+#define UDP_APPLY_STANDARD(st,uc,desc)                                 \
+    (uc)->use_proxy=False;                                             \
+    (uc)->authbind=NULL;                                               \
+    (uc)->port=dict_read_number(d,"port",True,"udp",(uc)->cc.loc,0)
+    /* Expects in scope:  dict_t *d=...; */
+
 #endif /*COMM_COMMON_H*/