X-Git-Url: https://git.distorted.org.uk/~mdw/tripe/blobdiff_plain/26936c8341691d67655a055956656f2506d53a63..89640f3f83c29967e524d754bf130bc452bdefe2:/server/tripe.h
diff --git a/server/tripe.h b/server/tripe.h
index 56cd0b40..fc866b8a 100644
--- a/server/tripe.h
+++ b/server/tripe.h
@@ -9,19 +9,18 @@
*
* This file is part of Trivial IP Encryption (TrIPE).
*
- * TrIPE is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * TrIPE is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 3 of the License, or (at your
+ * option) any later version.
*
- * TrIPE is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * TrIPE is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
*
* You should have received a copy of the GNU General Public License
- * along with TrIPE; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * along with TrIPE. If not, see .
*/
#ifndef TRIPE_H
@@ -67,6 +66,7 @@
#include
#include
#include
+#include
#include
#include
#include
@@ -202,7 +202,7 @@ typedef struct dhops {
int (*ldpriv)(key_file */*kf*/, key */*k*/, key_data */*d*/,
kdata */*kd*/, dstr */*t*/, dstr */*e*/);
/* Load a private key from @d@, storing the data in @kd@. The key's
- * file and key object are in @kf@ and @k, mostly in case its
+ * file and key object are in @kf@ and @k@, mostly in case its
* attributes are interesting; the key tag is in @t@; errors are
* reported by writing tokens to @e@ and returning nonzero.
*/
@@ -210,7 +210,7 @@ typedef struct dhops {
int (*ldpub)(key_file */*kf*/, key */*k*/, key_data */*d*/,
kdata */*kd*/, dstr */*t*/, dstr */*e*/);
/* Load a public key from @d@, storing the data in @kd@. The key's
- * file and key object are in @kf@ and @k, mostly in case its
+ * file and key object are in @kf@ and @k@, mostly in case its
* attributes are interesting; the key tag is in @t@; errors are
* reported by writing tokens to @e@ and returning nonzero.
*/
@@ -410,6 +410,23 @@ extern const bulkops bulktab[];
/*----- Data structures ---------------------------------------------------*/
+/* --- The address-family table --- */
+
+#define ADDRFAM(_) \
+ _(INET)
+
+enum {
+#define ENUM(af) AFIX_##af,
+ ADDRFAM(ENUM)
+#undef ENUM
+ NADDRFAM
+};
+
+extern const struct addrfam {
+ int af;
+ const char *name;
+} aftab[NADDRFAM];
+
/* --- Socket addresses --- *
*
* A magic union of supported socket addresses.
@@ -595,7 +612,6 @@ typedef struct peerspec {
const tunnel_ops *tops; /* Tunnel operations */
unsigned long t_ka; /* Keep alive interval */
addr sa; /* Socket address to speak to */
- size_t sasz; /* Socket address size */
unsigned f; /* Flags for the peer */
#define PSF_KXMASK 255u /* Key-exchange flags to set */
#define PSF_MOBILE 256u /* Address may change rapidly */
@@ -616,6 +632,7 @@ typedef struct peer {
peer_byaddr *byaddr; /* Lookup-by-address block */
struct ping *pings; /* Pings we're waiting for */
peerspec spec; /* Specifications for this peer */
+ int afix; /* Index of address family */
tunnel *t; /* Tunnel for local packets */
char *ifname; /* Interface name for tunnel */
keyset *ks; /* List head for keysets */
@@ -675,6 +692,7 @@ typedef struct admin_resop {
bres_client r; /* Background resolver task */
sel_timer t; /* Timer for resolver */
addr sa; /* Socket address */
+ unsigned port; /* Port number chosen */
size_t sasz; /* Socket address size */
void (*func)(struct admin_resop *, int); /* Handler */
} admin_resop;
@@ -742,7 +760,7 @@ struct admin {
#define AF_NOTE 4u /* Catch notifications */
#define AF_WARN 8u /* Catch warning messages */
#ifndef NTRACE
- #define AF_TRACE 16u /* Catch tracing */
+# define AF_TRACE 16u /* Catch tracing */
#endif
#define AF_FOREGROUND 32u /* Quit server when client closes */
@@ -758,6 +776,7 @@ extern sel_state sel; /* Global I/O event state */
extern octet buf_i[PKBUFSZ], buf_o[PKBUFSZ], buf_t[PKBUFSZ], buf_u[PKBUFSZ];
extern const tunnel_ops *tunnels[]; /* Table of tunnels (0-term) */
extern const tunnel_ops *tun_default; /* Default tunnel to use */
+extern sel_file udpsock[NADDRFAM]; /* The master UDP sockets */
extern kdata *master; /* Default private key */
extern const char *tag_priv; /* Default private key tag */
@@ -975,9 +994,8 @@ extern void ks_derivekey(octet */*k*/, size_t /*ksz*/,
* the key material; between @k + x@ and @k + y@ is `your'
* contribution; and between @k + y@ and @k + z@ is a shared
* value we made together. These are used to construct two
- * pairs of symmetric keys. Each pair consists of an encryption
- * key and a message authentication key. One pair is used for
- * outgoing messages, the other for incoming messages.
+ * collections of symmetric keys: one for outgoing messages, the
+ * other for incoming messages.
*
* The new key is marked so that it won't be selected for output
* by @ksl_encrypt@. You can still encrypt data with it by
@@ -1411,6 +1429,19 @@ extern void ps_quit(void);
/*----- Peer management ---------------------------------------------------*/
+/* --- @p_updateaddr@ --- *
+ *
+ * Arguments: @peer *p@ = pointer to peer block
+ * @const addr *a@ = address to associate with this peer
+ *
+ * Returns: Zero if the address was changed; @+1@ if it was already
+ * right.
+ *
+ * Use: Updates our idea of @p@'s address.
+ */
+
+extern int p_updateaddr(peer */*p*/, const addr */*a*/);
+
/* --- @p_txstart@ --- *
*
* Arguments: @peer *p@ = pointer to peer block
@@ -1554,24 +1585,23 @@ extern const addr *p_addr(peer */*p*/);
/* --- @p_init@ --- *
*
- * Arguments: @struct in_addr addr@ = address to bind to
- * @unsigned port@ = port number to listen to
+ * Arguments: @struct addrinfo *ailist@ = addresses to bind to
*
* Returns: ---
*
* Use: Initializes the peer system; creates the socket.
*/
-extern void p_init(struct in_addr /*addr*/, unsigned /*port*/);
+extern void p_init(struct addrinfo */*ailist*/);
/* --- @p_port@ --- *
*
- * Arguments: ---
+ * Arguments: @int i@ = address family index to retrieve
*
* Returns: Port number used for socket.
*/
-unsigned p_port(void);
+extern unsigned p_port(int /*i*/);
/* --- @p_create@ --- *
*
@@ -1731,6 +1761,37 @@ extern const char *timestr(time_t /*t*/);
extern int mystrieq(const char */*x*/, const char */*y*/);
+/* --- @afix@ --- *
+ *
+ * Arguments: @int af@ = an address family code
+ *
+ * Returns: The index of the address family's record in @aftab@, or @-1@.
+ */
+
+extern int afix(int af);
+
+/* --- @addrsz@ --- *
+ *
+ * Arguments: @const addr *a@ = a network address
+ *
+ * Returns: The size of the address, for passing into the sockets API.
+ */
+
+extern socklen_t addrsz(const addr */*a*/);
+
+/* --- @getport@, @setport@ --- *
+ *
+ * Arguments: @addr *a@ = a network address
+ * @unsigned port@ = port number to set
+ *
+ * Returns: ---
+ *
+ * Use: Retrieves or sets the port number in an address structure.
+ */
+
+extern unsigned getport(addr */*a*/);
+extern void setport(addr */*a*/, unsigned /*port*/);
+
/* --- @seq_reset@ --- *
*
* Arguments: @seqwin *s@ = sequence-checking window