X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=secnet.git;a=blobdiff_plain;f=secnet.h;h=29cbac79c6fdd3247c2d982da9db89e04847c829;hp=46aac5b4a9c08b0a3dfe1eabf75e23521b527952;hb=925c5ca83e5eb67604b837ce8d3e02fae2adb260;hpb=45a1170652384baf744a5e61d576af534c7b8b14

diff --git a/secnet.h b/secnet.h
index 46aac5b..29cbac7 100644
--- a/secnet.h
+++ b/secnet.h
@@ -16,7 +16,10 @@
 
 typedef char *string_t;
 typedef const char *cstring_t;
-typedef enum {False,True} bool_t;
+
+#define False (_Bool)0
+#define True  (_Bool)1
+typedef _Bool bool_t;
 
 #define ASSERT(x) do { if (!(x)) { fatal("assertion failed line %d file " \
 					 __FILE__,__LINE__); } } while(0)
@@ -146,6 +149,16 @@ static const struct timeval *const tv_now = &tv_now_global;
 
 /***** END of utility functions *****/
 
+/***** START of max_start_pad handling *****/
+
+extern int32_t site_max_start_pad, transform_max_start_pad,
+    comm_max_start_pad;
+
+void update_max_start_pad(int32_t *our_module_global, int32_t our_instance);
+int32_t calculate_max_start_pad(void);
+
+/***** END of max_start_pad handling *****/
+
 /***** SCHEDULING support */
 
 /* If nfds_io is insufficient for your needs, set it to the required
@@ -325,7 +338,6 @@ typedef const char *comm_addr_to_string_fn(void *commst,
         /* Returned string is in a static buffer. */
 struct comm_if {
     void *st;
-    int32_t min_start_pad;
     comm_request_notify_fn *request_notify;
     comm_release_notify_fn *release_notify;
     comm_sendmsg_fn *sendmsg;
@@ -339,8 +351,8 @@ typedef void log_vmsg_fn(void *st, int class, const char *message,
 			 va_list args);
 struct log_if {
     void *st;
-    log_msg_fn *log;
-    log_vmsg_fn *vlog;
+    log_msg_fn *logfn;   /* Do not call these directly - you don't get */
+    log_vmsg_fn *vlogfn; /* printf format checking.  Use [v]slilog instead */
 };
 /* (convenience functions, defined in util.c) */
 extern void slilog(struct log_if *lf, int class, const char *message, ...)
@@ -363,8 +375,7 @@ struct site_if {
 /* TRANSFORM interface */
 
 /* A reversable transformation. Transforms buffer in-place; may add
-   data to start or end. Maximum amount of data to be added before
-   the packet specified in max_start_pad. (Reverse transformations decrease
+   data to start or end. (Reverse transformations decrease
    length, of course.)  Transformations may be key-dependent, in which
    case key material is passed in at initialisation time. They may
    also depend on internal factors (eg. time) and keep internal
@@ -400,8 +411,8 @@ struct transform_inst_if {
 
 struct transform_if {
     void *st;
-    int32_t max_start_pad; /* these two are both <<< INT_MAX */
-    int32_t keylen; /* 0 means give the transform exactly as much as there is */
+    int capab_transformnum;
+    int32_t keylen; /* <<< INT_MAX */
     transform_createinstance_fn *create;
 };
 
@@ -423,7 +434,7 @@ typedef void netlink_deliver_fn(void *st, struct buffer_if *buf);
 #define MAXIMUM_LINK_QUALITY 3
 typedef void netlink_link_quality_fn(void *st, uint32_t quality);
 typedef void netlink_register_fn(void *st, netlink_deliver_fn *deliver,
-				 void *dst, int32_t max_start_pad);
+				 void *dst, uint32_t *localmtu_r /* NULL ok */);
 typedef void netlink_output_config_fn(void *st, struct buffer_if *buf);
 typedef bool_t netlink_check_config_fn(void *st, struct buffer_if *buf);
 typedef void netlink_set_mtu_fn(void *st, int32_t new_mtu);
@@ -490,21 +501,25 @@ struct buffer_if {
 #define M_FATAL	       0x100
 
 /* The fatal() family of functions require messages that do not end in '\n' */
-extern NORETURN(fatal(const char *message, ...));
-extern NORETURN(fatal_perror(const char *message, ...));
-extern NORETURN(fatal_status(int status, const char *message, ...));
-extern NORETURN(fatal_perror_status(int status, const char *message, ...));
+extern NORETURN(fatal(const char *message, ...)) FORMAT(printf,1,2);
+extern NORETURN(fatal_perror(const char *message, ...)) FORMAT(printf,1,2);
+extern NORETURN(fatal_status(int status, const char *message, ...))
+       FORMAT(printf,2,3);
+extern NORETURN(fatal_perror_status(int status, const char *message, ...))
+       FORMAT(printf,2,3);
 
 /* The cfgfatal() family of functions require messages that end in '\n' */
 extern NORETURN(cfgfatal(struct cloc loc, cstring_t facility,
-			 const char *message, ...));
+			 const char *message, ...)) FORMAT(printf,3,4);
 extern void cfgfile_postreadcheck(struct cloc loc, FILE *f);
 extern NORETURN(vcfgfatal_maybefile(FILE *maybe_f, struct cloc loc,
 				    cstring_t facility, const char *message,
-				    va_list));
+				    va_list))
+    FORMAT(printf,4,0);
 extern NORETURN(cfgfatal_maybefile(FILE *maybe_f, struct cloc loc,
 				   cstring_t facility,
-				   const char *message, ...));
+				   const char *message, ...))
+    FORMAT(printf,4,5);
 
 extern void Message(uint32_t class, const char *message, ...)
     FORMAT(printf,2,3);