Add the ability to close sessions. This adds *_free() functions to most

[u/mdw/putty] / ssh.h

diff --git a/ssh.h b/ssh.h
index 0cbdd47..c819c55 100644 (file)
--- a/ssh.h
+++ b/ssh.h
@@ -1,3 +1,4 @@
+#include <stdio.h>
 #include <string.h>
 
 #include "puttymem.h"
@@ -75,7 +76,10 @@ unsigned long crc32(const void *s, size_t len);
 unsigned long crc32_update(unsigned long crc_input, const void *s, size_t len);
 
 /* SSH CRC compensation attack detector */
-int detect_attack(unsigned char *buf, uint32 len, unsigned char *IV);
+void *crcda_make_context(void);
+void crcda_free_context(void *handle);
+int detect_attack(void *handle, unsigned char *buf, uint32 len,
+                 unsigned char *IV);
 
 typedef struct {
     uint32 h[4];
@@ -123,22 +127,26 @@ void SHA512_Final(SHA512_State * s, unsigned char *output);
 void SHA512_Simple(const void *p, int len, unsigned char *output);
 
 struct ssh_cipher {
-    void (*sesskey) (unsigned char *key);      /* for ssh 1 */
-    void (*encrypt) (unsigned char *blk, int len);
-    void (*decrypt) (unsigned char *blk, int len);
+    void *(*make_context)(void);
+    void (*free_context)(void *);
+    void (*sesskey) (void *, unsigned char *key);      /* for ssh 1 */
+    void (*encrypt) (void *, unsigned char *blk, int len);
+    void (*decrypt) (void *, unsigned char *blk, int len);
     int blksize;
+    char *text_name;
 };
 
 struct ssh2_cipher {
-    void (*setcsiv) (unsigned char *key);      /* for ssh 2 */
-    void (*setcskey) (unsigned char *key);     /* for ssh 2 */
-    void (*setsciv) (unsigned char *key);      /* for ssh 2 */
-    void (*setsckey) (unsigned char *key);     /* for ssh 2 */
-    void (*encrypt) (unsigned char *blk, int len);
-    void (*decrypt) (unsigned char *blk, int len);
+    void *(*make_context)(void);
+    void (*free_context)(void *);
+    void (*setiv) (void *, unsigned char *key);        /* for ssh 2 */
+    void (*setkey) (void *, unsigned char *key);/* for ssh 2 */
+    void (*encrypt) (void *, unsigned char *blk, int len);
+    void (*decrypt) (void *, unsigned char *blk, int len);
     char *name;
     int blksize;
     int keylen;
+    char *text_name;
 };
 
 struct ssh2_ciphers {
@@ -147,10 +155,11 @@ struct ssh2_ciphers {
 };
 
 struct ssh_mac {
-    void (*setcskey) (unsigned char *key);
-    void (*setsckey) (unsigned char *key);
-    void (*generate) (unsigned char *blk, int len, unsigned long seq);
-    int (*verify) (unsigned char *blk, int len, unsigned long seq);
+    void *(*make_context)(void);
+    void (*free_context)(void *);
+    void (*setkey) (void *, unsigned char *key);
+    void (*generate) (void *, unsigned char *blk, int len, unsigned long seq);
+    int (*verify) (void *, unsigned char *blk, int len, unsigned long seq);
     char *name;
     int len;
 };
@@ -187,13 +196,16 @@ struct ssh_signkey {
 
 struct ssh_compress {
     char *name;
-    void (*compress_init) (void);
-    int (*compress) (unsigned char *block, int len,
+    void *(*compress_init) (void);
+    void (*compress_cleanup) (void *);
+    int (*compress) (void *, unsigned char *block, int len,
                     unsigned char **outblock, int *outlen);
-    void (*decompress_init) (void);
-    int (*decompress) (unsigned char *block, int len,
+    void *(*decompress_init) (void);
+    void (*decompress_cleanup) (void *);
+    int (*decompress) (void *, unsigned char *block, int len,
                       unsigned char **outblock, int *outlen);
-    int (*disable_compression) (void);
+    int (*disable_compression) (void *);
+    char *text_name;
 };
 
 struct ssh2_userkey {
@@ -227,7 +239,7 @@ extern char sshver[];
  * that fails. This variable is the means by which scp.c can reach
  * into the SSH code and find out which one it got.
  */
-extern int ssh_fallback_cmd;
+extern int ssh_fallback_cmd(void *handle);
 
 #ifndef MSCRYPTOAPI
 void SHATransform(word32 * digest, word32 * data);
@@ -237,10 +249,39 @@ int random_byte(void);
 void random_add_noise(void *noise, int length);
 void random_add_heavynoise(void *noise, int length);
 
-void logevent(char *);
-void *new_sock_channel(Socket s); // allocates and register a new channel for port forwarding
+void logevent(void *, char *);
+
+/* Allocate and register a new channel for port forwarding */
+void *new_sock_channel(void *handle, Socket s);
 void ssh_send_port_open(void *channel, char *hostname, int port, char *org);
 
+/* Exports from portfwd.c */
+extern char *pfd_newconnect(Socket * s, char *hostname, int port, void *c,
+                           const Config *cfg);
+extern char *pfd_addforward(char *desthost, int destport, char *srcaddr,
+                           int port, void *backhandle, const Config *cfg);
+extern void pfd_close(Socket s);
+extern int pfd_send(Socket s, char *data, int len);
+extern void pfd_confirm(Socket s);
+extern void pfd_unthrottle(Socket s);
+extern void pfd_override_throttle(Socket s, int enable);
+
+/* Exports from x11fwd.c */
+extern char *x11_init(Socket *, char *, void *, void *, const char *, int,
+                     const Config *);
+extern void x11_close(Socket);
+extern int x11_send(Socket, char *, int);
+extern void *x11_invent_auth(char *, int, char *, int, int);
+extern void x11_free_auth(void *);
+extern void x11_unthrottle(Socket s);
+extern void x11_override_throttle(Socket s, int enable);
+extern int x11_get_screen_number(char *display);
+void x11_get_real_auth(void *authv, char *display);
+
+/* Platfdorm-dependent X11 function */
+extern void platform_get_x11_auth(char *display, int *proto,
+                                  unsigned char *data, int *datalen);
+
 Bignum copybn(Bignum b);
 Bignum bn_power_2(int n);
 void bn_restore_invariant(Bignum b);
@@ -250,8 +291,8 @@ Bignum modpow(Bignum base, Bignum exp, Bignum mod);
 Bignum modmul(Bignum a, Bignum b, Bignum mod);
 void decbn(Bignum n);
 extern Bignum Zero, One;
-Bignum bignum_from_bytes(unsigned char *data, int nbytes);
-int ssh1_read_bignum(unsigned char *data, Bignum * result);
+Bignum bignum_from_bytes(const unsigned char *data, int nbytes);
+int ssh1_read_bignum(const unsigned char *data, Bignum * result);
 int bignum_bitcount(Bignum bn);
 int ssh1_bignum_length(Bignum bn);
 int ssh2_bignum_length(Bignum bn);
@@ -272,11 +313,11 @@ Bignum bignum_rshift(Bignum number, int shift);
 int bignum_cmp(Bignum a, Bignum b);
 char *bignum_decimal(Bignum x);
 
-void dh_setup_group1(void);
-void dh_setup_group(Bignum pval, Bignum gval);
-void dh_cleanup(void);
-Bignum dh_create_e(int nbits);
-Bignum dh_find_K(Bignum f);
+void *dh_setup_group1(void);
+void *dh_setup_group(Bignum pval, Bignum gval);
+void dh_cleanup(void *);
+Bignum dh_create_e(void *, int nbits);
+Bignum dh_find_K(void *, Bignum f);
 
 int loadrsakey(char *filename, struct RSAKey *key, char *passphrase);
 int rsakey_encrypted(char *filename, char **comment);
@@ -284,7 +325,10 @@ int rsakey_pubblob(char *filename, void **blob, int *bloblen);
 
 int saversakey(char *filename, struct RSAKey *key, char *passphrase);
 
-void base64_encode_atom(unsigned char *data, int n, char *out);
+extern int base64_decode_atom(char *atom, unsigned char *out);
+extern int base64_lines(int datalen);
+extern void base64_encode_atom(unsigned char *data, int n, char *out);
+extern void base64_encode(FILE *fp, unsigned char *data, int datalen, int cpl);
 
 /* ssh2_load_userkey can return this as an error */
 extern struct ssh2_userkey ssh2_wrong_passphrase;
@@ -311,6 +355,9 @@ int import_target_type(int type);
 int import_encrypted(char *filename, int type, char **comment);
 int import_ssh1(char *filename, int type, struct RSAKey *key,char *passphrase);
 struct ssh2_userkey *import_ssh2(char *filename, int type, char *passphrase);
+int export_ssh1(char *filename, int type, struct RSAKey *key,char *passphrase);
+int export_ssh2(char *filename, int type,
+                struct ssh2_userkey *key, char *passphrase);
 
 void des3_decrypt_pubkey(unsigned char *key, unsigned char *blk, int len);
 void des3_encrypt_pubkey(unsigned char *key, unsigned char *blk, int len);
@@ -323,6 +370,9 @@ void aes256_encrypt_pubkey(unsigned char *key, unsigned char *blk,
 void aes256_decrypt_pubkey(unsigned char *key, unsigned char *blk,
                           int len);
 
+void des_encrypt_xdmauth(unsigned char *key, unsigned char *blk, int len);
+void des_decrypt_xdmauth(unsigned char *key, unsigned char *blk, int len);
+
 /*
  * For progress updates in the key generation utility.
  */
@@ -345,11 +395,13 @@ Bignum primegen(int bits, int modulus, int residue, Bignum factor,
 /*
  * zlib compression.
  */
-void zlib_compress_init(void);
-void zlib_decompress_init(void);
-int zlib_compress_block(unsigned char *block, int len,
+void *zlib_compress_init(void);
+void zlib_compress_cleanup(void *);
+void *zlib_decompress_init(void);
+void zlib_decompress_cleanup(void *);
+int zlib_compress_block(void *, unsigned char *block, int len,
                        unsigned char **outblock, int *outlen);
-int zlib_decompress_block(unsigned char *block, int len,
+int zlib_decompress_block(void *, unsigned char *block, int len,
                          unsigned char **outblock, int *outlen);
 
 /*