From a3fe3e22d85e8aa795df85c21814fc84cac42e99 Mon Sep 17 00:00:00 2001 From: marha Date: Mon, 14 Apr 2014 23:43:21 +0200 Subject: plink: updated to revision 10170 of putty --- tools/plink/ssh.h | 1416 ++++++++++++++++++++++++++++++----------------------- 1 file changed, 816 insertions(+), 600 deletions(-) (limited to 'tools/plink/ssh.h') diff --git a/tools/plink/ssh.h b/tools/plink/ssh.h index 3431842aa..89f772d66 100644 --- a/tools/plink/ssh.h +++ b/tools/plink/ssh.h @@ -1,600 +1,816 @@ -#include -#include - -#include "puttymem.h" -#include "tree234.h" -#include "network.h" -#include "int64.h" -#include "misc.h" - -struct ssh_channel; - -extern int sshfwd_write(struct ssh_channel *c, char *, int); -extern void sshfwd_write_eof(struct ssh_channel *c); -extern void sshfwd_unclean_close(struct ssh_channel *c); -extern void sshfwd_unthrottle(struct ssh_channel *c, int bufsize); - -/* - * Useful thing. - */ -#ifndef lenof -#define lenof(x) ( (sizeof((x))) / (sizeof(*(x)))) -#endif - -#define SSH_CIPHER_IDEA 1 -#define SSH_CIPHER_DES 2 -#define SSH_CIPHER_3DES 3 -#define SSH_CIPHER_BLOWFISH 6 - -#ifdef MSCRYPTOAPI -#define APIEXTRA 8 -#else -#define APIEXTRA 0 -#endif - -#ifndef BIGNUM_INTERNAL -typedef void *Bignum; -#endif - -struct RSAKey { - int bits; - int bytes; -#ifdef MSCRYPTOAPI - unsigned long exponent; - unsigned char *modulus; -#else - Bignum modulus; - Bignum exponent; - Bignum private_exponent; - Bignum p; - Bignum q; - Bignum iqmp; -#endif - char *comment; -}; - -struct dss_key { - Bignum p, q, g, y, x; -}; - -int makekey(unsigned char *data, int len, struct RSAKey *result, - unsigned char **keystr, int order); -int makeprivate(unsigned char *data, int len, struct RSAKey *result); -int rsaencrypt(unsigned char *data, int length, struct RSAKey *key); -Bignum rsadecrypt(Bignum input, struct RSAKey *key); -void rsasign(unsigned char *data, int length, struct RSAKey *key); -void rsasanitise(struct RSAKey *key); -int rsastr_len(struct RSAKey *key); -void rsastr_fmt(char *str, struct RSAKey *key); -void rsa_fingerprint(char *str, int len, struct RSAKey *key); -int rsa_verify(struct RSAKey *key); -unsigned char *rsa_public_blob(struct RSAKey *key, int *len); -int rsa_public_blob_len(void *data, int maxlen); -void freersakey(struct RSAKey *key); - -#ifndef PUTTY_UINT32_DEFINED -/* This makes assumptions about the int type. */ -typedef unsigned int uint32; -#define PUTTY_UINT32_DEFINED -#endif -typedef uint32 word32; - -unsigned long crc32_compute(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 */ -void *crcda_make_context(void); -void crcda_free_context(void *handle); -int detect_attack(void *handle, unsigned char *buf, uint32 len, - unsigned char *IV); - -/* - * SSH2 RSA key exchange functions - */ -struct ssh_hash; -void *ssh_rsakex_newkey(char *data, int len); -void ssh_rsakex_freekey(void *key); -int ssh_rsakex_klen(void *key); -void ssh_rsakex_encrypt(const struct ssh_hash *h, unsigned char *in, int inlen, - unsigned char *out, int outlen, - void *key); - -typedef struct { - uint32 h[4]; -} MD5_Core_State; - -struct MD5Context { -#ifdef MSCRYPTOAPI - unsigned long hHash; -#else - MD5_Core_State core; - unsigned char block[64]; - int blkused; - uint32 lenhi, lenlo; -#endif -}; - -void MD5Init(struct MD5Context *context); -void MD5Update(struct MD5Context *context, unsigned char const *buf, - unsigned len); -void MD5Final(unsigned char digest[16], struct MD5Context *context); -void MD5Simple(void const *p, unsigned len, unsigned char output[16]); - -void *hmacmd5_make_context(void); -void hmacmd5_free_context(void *handle); -void hmacmd5_key(void *handle, void const *key, int len); -void hmacmd5_do_hmac(void *handle, unsigned char const *blk, int len, - unsigned char *hmac); - -typedef struct { - uint32 h[5]; - unsigned char block[64]; - int blkused; - uint32 lenhi, lenlo; -} SHA_State; -void SHA_Init(SHA_State * s); -void SHA_Bytes(SHA_State * s, void *p, int len); -void SHA_Final(SHA_State * s, unsigned char *output); -void SHA_Simple(void *p, int len, unsigned char *output); - -void hmac_sha1_simple(void *key, int keylen, void *data, int datalen, - unsigned char *output); -typedef struct { - uint32 h[8]; - unsigned char block[64]; - int blkused; - uint32 lenhi, lenlo; -} SHA256_State; -void SHA256_Init(SHA256_State * s); -void SHA256_Bytes(SHA256_State * s, const void *p, int len); -void SHA256_Final(SHA256_State * s, unsigned char *output); -void SHA256_Simple(const void *p, int len, unsigned char *output); - -typedef struct { - uint64 h[8]; - unsigned char block[128]; - int blkused; - uint32 len[4]; -} SHA512_State; -void SHA512_Init(SHA512_State * s); -void SHA512_Bytes(SHA512_State * s, const void *p, int len); -void SHA512_Final(SHA512_State * s, unsigned char *output); -void SHA512_Simple(const void *p, int len, unsigned char *output); - -struct ssh_cipher { - 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 *(*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; - unsigned int flags; -#define SSH_CIPHER_IS_CBC 1 - char *text_name; -}; - -struct ssh2_ciphers { - int nciphers; - const struct ssh2_cipher *const *list; -}; - -struct ssh_mac { - void *(*make_context)(void); - void (*free_context)(void *); - void (*setkey) (void *, unsigned char *key); - /* whole-packet operations */ - void (*generate) (void *, unsigned char *blk, int len, unsigned long seq); - int (*verify) (void *, unsigned char *blk, int len, unsigned long seq); - /* partial-packet operations */ - void (*start) (void *); - void (*bytes) (void *, unsigned char const *, int); - void (*genresult) (void *, unsigned char *); - int (*verresult) (void *, unsigned char const *); - char *name; - int len; - char *text_name; -}; - -struct ssh_hash { - void *(*init)(void); /* also allocates context */ - void (*bytes)(void *, void *, int); - void (*final)(void *, unsigned char *); /* also frees context */ - int hlen; /* output length in bytes */ - char *text_name; -}; - -struct ssh_kex { - char *name, *groupname; - enum { KEXTYPE_DH, KEXTYPE_RSA } main_type; - /* For DH */ - const unsigned char *pdata, *gdata; /* NULL means group exchange */ - int plen, glen; - const struct ssh_hash *hash; -}; - -struct ssh_kexes { - int nkexes; - const struct ssh_kex *const *list; -}; - -struct ssh_signkey { - void *(*newkey) (char *data, int len); - void (*freekey) (void *key); - char *(*fmtkey) (void *key); - unsigned char *(*public_blob) (void *key, int *len); - unsigned char *(*private_blob) (void *key, int *len); - void *(*createkey) (unsigned char *pub_blob, int pub_len, - unsigned char *priv_blob, int priv_len); - void *(*openssh_createkey) (unsigned char **blob, int *len); - int (*openssh_fmtkey) (void *key, unsigned char *blob, int len); - int (*pubkey_bits) (void *blob, int len); - char *(*fingerprint) (void *key); - int (*verifysig) (void *key, char *sig, int siglen, - char *data, int datalen); - unsigned char *(*sign) (void *key, char *data, int datalen, - int *siglen); - char *name; - char *keytype; /* for host key cache */ -}; - -struct ssh_compress { - char *name; - /* For zlib@openssh.com: if non-NULL, this name will be considered once - * userauth has completed successfully. */ - char *delayed_name; - 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); - void (*decompress_cleanup) (void *); - int (*decompress) (void *, unsigned char *block, int len, - unsigned char **outblock, int *outlen); - int (*disable_compression) (void *); - char *text_name; -}; - -struct ssh2_userkey { - const struct ssh_signkey *alg; /* the key algorithm */ - void *data; /* the key data */ - char *comment; /* the key comment */ -}; - -/* The maximum length of any hash algorithm used in kex. (bytes) */ -#define SSH2_KEX_MAX_HASH_LEN (32) /* SHA-256 */ - -extern const struct ssh_cipher ssh_3des; -extern const struct ssh_cipher ssh_des; -extern const struct ssh_cipher ssh_blowfish_ssh1; -extern const struct ssh2_ciphers ssh2_3des; -extern const struct ssh2_ciphers ssh2_des; -extern const struct ssh2_ciphers ssh2_aes; -extern const struct ssh2_ciphers ssh2_blowfish; -extern const struct ssh2_ciphers ssh2_arcfour; -extern const struct ssh_hash ssh_sha1; -extern const struct ssh_hash ssh_sha256; -extern const struct ssh_kexes ssh_diffiehellman_group1; -extern const struct ssh_kexes ssh_diffiehellman_group14; -extern const struct ssh_kexes ssh_diffiehellman_gex; -extern const struct ssh_kexes ssh_rsa_kex; -extern const struct ssh_signkey ssh_dss; -extern const struct ssh_signkey ssh_rsa; -extern const struct ssh_mac ssh_hmac_md5; -extern const struct ssh_mac ssh_hmac_sha1; -extern const struct ssh_mac ssh_hmac_sha1_buggy; -extern const struct ssh_mac ssh_hmac_sha1_96; -extern const struct ssh_mac ssh_hmac_sha1_96_buggy; - -void *aes_make_context(void); -void aes_free_context(void *handle); -void aes128_key(void *handle, unsigned char *key); -void aes192_key(void *handle, unsigned char *key); -void aes256_key(void *handle, unsigned char *key); -void aes_iv(void *handle, unsigned char *iv); -void aes_ssh2_encrypt_blk(void *handle, unsigned char *blk, int len); -void aes_ssh2_decrypt_blk(void *handle, unsigned char *blk, int len); - -/* - * PuTTY version number formatted as an SSH version string. - */ -extern char sshver[]; - -/* - * Gross hack: pscp will try to start SFTP but fall back to scp1 if - * 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(void *handle); - -#ifndef MSCRYPTOAPI -void SHATransform(word32 * digest, word32 * data); -#endif - -int random_byte(void); -void random_add_noise(void *noise, int length); -void random_add_heavynoise(void *noise, int length); - -void logevent(void *, const 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 const char *pfd_newconnect(Socket * s, char *hostname, int port, - void *c, Conf *conf, int addressfamily); -/* desthost == NULL indicates dynamic (SOCKS) port forwarding */ -extern const char *pfd_addforward(char *desthost, int destport, char *srcaddr, - int port, void *backhandle, Conf *conf, - void **sockdata, int address_family); -extern void pfd_close(Socket s); -extern void pfd_terminate(void *sockdata); -extern int pfd_send(Socket s, char *data, int len); -extern void pfd_send_eof(Socket s); -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 */ -enum { - X11_TRANS_IPV4 = 0, X11_TRANS_IPV6 = 6, X11_TRANS_UNIX = 256 -}; -struct X11Display { - /* Broken-down components of the display name itself */ - int unixdomain; - char *hostname; - int displaynum; - int screennum; - /* OSX sometimes replaces all the above with a full Unix-socket pathname */ - char *unixsocketpath; - - /* PuTTY networking SockAddr to connect to the display, and associated - * gubbins */ - SockAddr addr; - int port; - char *realhost; - - /* Auth details we invented for the virtual display on the SSH server. */ - int remoteauthproto; - unsigned char *remoteauthdata; - int remoteauthdatalen; - char *remoteauthprotoname; - char *remoteauthdatastring; - - /* Our local auth details for talking to the real X display. */ - int localauthproto; - unsigned char *localauthdata; - int localauthdatalen; - - /* - * Used inside x11fwd.c to remember recently seen - * XDM-AUTHORIZATION-1 strings, to avoid replay attacks. - */ - tree234 *xdmseen; -}; -/* - * x11_setup_display() parses the display variable and fills in an - * X11Display structure. Some remote auth details are invented; - * the supplied authtype parameter configures the preferred - * authorisation protocol to use at the remote end. The local auth - * details are looked up by calling platform_get_x11_auth. - */ -extern struct X11Display *x11_setup_display(char *display, int authtype, - Conf *); -void x11_free_display(struct X11Display *disp); -extern const char *x11_init(Socket *, struct X11Display *, void *, - const char *, int, Conf *); -extern void x11_close(Socket); -extern int x11_send(Socket, char *, int); -extern void x11_send_eof(Socket s); -extern void x11_unthrottle(Socket s); -extern void x11_override_throttle(Socket s, int enable); -char *x11_display(const char *display); -/* Platform-dependent X11 functions */ -extern void platform_get_x11_auth(struct X11Display *display, Conf *); - /* examine a mostly-filled-in X11Display and fill in localauth* */ -extern const int platform_uses_x11_unix_by_default; - /* choose default X transport in the absence of a specified one */ -SockAddr platform_get_x11_unix_address(const char *path, int displaynum); - /* make up a SockAddr naming the address for displaynum */ -char *platform_get_x_display(void); - /* allocated local X display string, if any */ -/* Callbacks in x11.c usable _by_ platform X11 functions */ -/* - * This function does the job of platform_get_x11_auth, provided - * it is told where to find a normally formatted .Xauthority file: - * it opens that file, parses it to find an auth record which - * matches the display details in "display", and fills in the - * localauth fields. - * - * It is expected that most implementations of - * platform_get_x11_auth() will work by finding their system's - * .Xauthority file, adjusting the display details if necessary - * for local oddities like Unix-domain socket transport, and - * calling this function to do the rest of the work. - */ -void x11_get_auth_from_authfile(struct X11Display *display, - const char *authfilename); - -Bignum copybn(Bignum b); -Bignum bn_power_2(int n); -void bn_restore_invariant(Bignum b); -Bignum bignum_from_long(unsigned long n); -void freebn(Bignum b); -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(const unsigned char *data, int nbytes); -int ssh1_read_bignum(const unsigned char *data, int len, Bignum * result); -int bignum_bitcount(Bignum bn); -int ssh1_bignum_length(Bignum bn); -int ssh2_bignum_length(Bignum bn); -int bignum_byte(Bignum bn, int i); -int bignum_bit(Bignum bn, int i); -void bignum_set_bit(Bignum bn, int i, int value); -int ssh1_write_bignum(void *data, Bignum bn); -Bignum biggcd(Bignum a, Bignum b); -unsigned short bignum_mod_short(Bignum number, unsigned short modulus); -Bignum bignum_add_long(Bignum number, unsigned long addend); -Bignum bigadd(Bignum a, Bignum b); -Bignum bigsub(Bignum a, Bignum b); -Bignum bigmul(Bignum a, Bignum b); -Bignum bigmuladd(Bignum a, Bignum b, Bignum addend); -Bignum bigdiv(Bignum a, Bignum b); -Bignum bigmod(Bignum a, Bignum b); -Bignum modinv(Bignum number, Bignum modulus); -Bignum bignum_bitmask(Bignum number); -Bignum bignum_rshift(Bignum number, int shift); -int bignum_cmp(Bignum a, Bignum b); -char *bignum_decimal(Bignum x); - -#ifdef DEBUG -void diagbn(char *prefix, Bignum md); -#endif - -void *dh_setup_group(const struct ssh_kex *kex); -void *dh_setup_gex(Bignum pval, Bignum gval); -void dh_cleanup(void *); -Bignum dh_create_e(void *, int nbits); -Bignum dh_find_K(void *, Bignum f); - -int loadrsakey(const Filename *filename, struct RSAKey *key, - char *passphrase, const char **errorstr); -int rsakey_encrypted(const Filename *filename, char **comment); -int rsakey_pubblob(const Filename *filename, void **blob, int *bloblen, - char **commentptr, const char **errorstr); - -int saversakey(const Filename *filename, struct RSAKey *key, char *passphrase); - -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; -#define SSH2_WRONG_PASSPHRASE (&ssh2_wrong_passphrase) - -int ssh2_userkey_encrypted(const Filename *filename, char **comment); -struct ssh2_userkey *ssh2_load_userkey(const Filename *filename, - char *passphrase, const char **errorstr); -unsigned char *ssh2_userkey_loadpub(const Filename *filename, char **algorithm, - int *pub_blob_len, char **commentptr, - const char **errorstr); -int ssh2_save_userkey(const Filename *filename, struct ssh2_userkey *key, - char *passphrase); -const struct ssh_signkey *find_pubkey_alg(const char *name); - -enum { - SSH_KEYTYPE_UNOPENABLE, - SSH_KEYTYPE_UNKNOWN, - SSH_KEYTYPE_SSH1, SSH_KEYTYPE_SSH2, - SSH_KEYTYPE_OPENSSH, SSH_KEYTYPE_SSHCOM -}; -int key_type(const Filename *filename); -char *key_type_to_str(int type); - -int import_possible(int type); -int import_target_type(int type); -int import_encrypted(const Filename *filename, int type, char **comment); -int import_ssh1(const Filename *filename, int type, - struct RSAKey *key, char *passphrase, const char **errmsg_p); -struct ssh2_userkey *import_ssh2(const Filename *filename, int type, - char *passphrase, const char **errmsg_p); -int export_ssh1(const Filename *filename, int type, - struct RSAKey *key, char *passphrase); -int export_ssh2(const Filename *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); -void des3_decrypt_pubkey_ossh(unsigned char *key, unsigned char *iv, - unsigned char *blk, int len); -void des3_encrypt_pubkey_ossh(unsigned char *key, unsigned char *iv, - unsigned char *blk, int len); -void aes256_encrypt_pubkey(unsigned char *key, unsigned char *blk, - int len); -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. - */ -#define PROGFN_INITIALISE 1 -#define PROGFN_LIN_PHASE 2 -#define PROGFN_EXP_PHASE 3 -#define PROGFN_PHASE_EXTENT 4 -#define PROGFN_READY 5 -#define PROGFN_PROGRESS 6 -typedef void (*progfn_t) (void *param, int action, int phase, int progress); - -int rsa_generate(struct RSAKey *key, int bits, progfn_t pfn, - void *pfnparam); -int dsa_generate(struct dss_key *key, int bits, progfn_t pfn, - void *pfnparam); -Bignum primegen(int bits, int modulus, int residue, Bignum factor, - int phase, progfn_t pfn, void *pfnparam); - - -/* - * zlib compression. - */ -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(void *, unsigned char *block, int len, - unsigned char **outblock, int *outlen); - -/* - * SSH-1 agent messages. - */ -#define SSH1_AGENTC_REQUEST_RSA_IDENTITIES 1 -#define SSH1_AGENT_RSA_IDENTITIES_ANSWER 2 -#define SSH1_AGENTC_RSA_CHALLENGE 3 -#define SSH1_AGENT_RSA_RESPONSE 4 -#define SSH1_AGENTC_ADD_RSA_IDENTITY 7 -#define SSH1_AGENTC_REMOVE_RSA_IDENTITY 8 -#define SSH1_AGENTC_REMOVE_ALL_RSA_IDENTITIES 9 /* openssh private? */ - -/* - * Messages common to SSH-1 and OpenSSH's SSH-2. - */ -#define SSH_AGENT_FAILURE 5 -#define SSH_AGENT_SUCCESS 6 - -/* - * OpenSSH's SSH-2 agent messages. - */ -#define SSH2_AGENTC_REQUEST_IDENTITIES 11 -#define SSH2_AGENT_IDENTITIES_ANSWER 12 -#define SSH2_AGENTC_SIGN_REQUEST 13 -#define SSH2_AGENT_SIGN_RESPONSE 14 -#define SSH2_AGENTC_ADD_IDENTITY 17 -#define SSH2_AGENTC_REMOVE_IDENTITY 18 -#define SSH2_AGENTC_REMOVE_ALL_IDENTITIES 19 - -/* - * Need this to warn about support for the original SSH-2 keyfile - * format. - */ -void old_keyfile_warning(void); +#include +#include + +#include "puttymem.h" +#include "tree234.h" +#include "network.h" +#include "int64.h" +#include "misc.h" + +struct ssh_channel; +typedef struct ssh_tag *Ssh; + +extern int sshfwd_write(struct ssh_channel *c, char *, int); +extern void sshfwd_write_eof(struct ssh_channel *c); +extern void sshfwd_unclean_close(struct ssh_channel *c, const char *err); +extern void sshfwd_unthrottle(struct ssh_channel *c, int bufsize); +Conf *sshfwd_get_conf(struct ssh_channel *c); +void sshfwd_x11_sharing_handover(struct ssh_channel *c, + void *share_cs, void *share_chan, + const char *peer_addr, int peer_port, + int endian, int protomajor, int protominor, + const void *initial_data, int initial_len); +void sshfwd_x11_is_local(struct ssh_channel *c); + +extern Socket ssh_connection_sharing_init(const char *host, int port, + Conf *conf, Ssh ssh, void **state); +void share_got_pkt_from_server(void *ctx, int type, + unsigned char *pkt, int pktlen); +void share_activate(void *state, const char *server_verstring); +void sharestate_free(void *state); +int share_ndownstreams(void *state); + +void ssh_connshare_log(Ssh ssh, int event, const char *logtext, + const char *ds_err, const char *us_err); +unsigned ssh_alloc_sharing_channel(Ssh ssh, void *sharing_ctx); +void ssh_delete_sharing_channel(Ssh ssh, unsigned localid); +int ssh_alloc_sharing_rportfwd(Ssh ssh, const char *shost, int sport, + void *share_ctx); +void ssh_sharing_queue_global_request(Ssh ssh, void *share_ctx); +struct X11FakeAuth *ssh_sharing_add_x11_display(Ssh ssh, int authtype, + void *share_cs, + void *share_chan); +void ssh_sharing_remove_x11_display(Ssh ssh, struct X11FakeAuth *auth); +void ssh_send_packet_from_downstream(Ssh ssh, unsigned id, int type, + const void *pkt, int pktlen, + const char *additional_log_text); +void ssh_sharing_downstream_connected(Ssh ssh, unsigned id); +void ssh_sharing_downstream_disconnected(Ssh ssh, unsigned id); +void ssh_sharing_logf(Ssh ssh, unsigned id, const char *logfmt, ...); +int ssh_agent_forwarding_permitted(Ssh ssh); +void share_setup_x11_channel(void *csv, void *chanv, + unsigned upstream_id, unsigned server_id, + unsigned server_currwin, unsigned server_maxpkt, + unsigned client_adjusted_window, + const char *peer_addr, int peer_port, int endian, + int protomajor, int protominor, + const void *initial_data, int initial_len); + +/* + * Useful thing. + */ +#ifndef lenof +#define lenof(x) ( (sizeof((x))) / (sizeof(*(x)))) +#endif + +#define SSH_CIPHER_IDEA 1 +#define SSH_CIPHER_DES 2 +#define SSH_CIPHER_3DES 3 +#define SSH_CIPHER_BLOWFISH 6 + +#ifdef MSCRYPTOAPI +#define APIEXTRA 8 +#else +#define APIEXTRA 0 +#endif + +#ifndef BIGNUM_INTERNAL +typedef void *Bignum; +#endif + +struct RSAKey { + int bits; + int bytes; +#ifdef MSCRYPTOAPI + unsigned long exponent; + unsigned char *modulus; +#else + Bignum modulus; + Bignum exponent; + Bignum private_exponent; + Bignum p; + Bignum q; + Bignum iqmp; +#endif + char *comment; +}; + +struct dss_key { + Bignum p, q, g, y, x; +}; + +int makekey(unsigned char *data, int len, struct RSAKey *result, + unsigned char **keystr, int order); +int makeprivate(unsigned char *data, int len, struct RSAKey *result); +int rsaencrypt(unsigned char *data, int length, struct RSAKey *key); +Bignum rsadecrypt(Bignum input, struct RSAKey *key); +void rsasign(unsigned char *data, int length, struct RSAKey *key); +void rsasanitise(struct RSAKey *key); +int rsastr_len(struct RSAKey *key); +void rsastr_fmt(char *str, struct RSAKey *key); +void rsa_fingerprint(char *str, int len, struct RSAKey *key); +int rsa_verify(struct RSAKey *key); +unsigned char *rsa_public_blob(struct RSAKey *key, int *len); +int rsa_public_blob_len(void *data, int maxlen); +void freersakey(struct RSAKey *key); + +#ifndef PUTTY_UINT32_DEFINED +/* This makes assumptions about the int type. */ +typedef unsigned int uint32; +#define PUTTY_UINT32_DEFINED +#endif +typedef uint32 word32; + +unsigned long crc32_compute(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 */ +void *crcda_make_context(void); +void crcda_free_context(void *handle); +int detect_attack(void *handle, unsigned char *buf, uint32 len, + unsigned char *IV); + +/* + * SSH2 RSA key exchange functions + */ +struct ssh_hash; +void *ssh_rsakex_newkey(char *data, int len); +void ssh_rsakex_freekey(void *key); +int ssh_rsakex_klen(void *key); +void ssh_rsakex_encrypt(const struct ssh_hash *h, unsigned char *in, int inlen, + unsigned char *out, int outlen, + void *key); + +typedef struct { + uint32 h[4]; +} MD5_Core_State; + +struct MD5Context { +#ifdef MSCRYPTOAPI + unsigned long hHash; +#else + MD5_Core_State core; + unsigned char block[64]; + int blkused; + uint32 lenhi, lenlo; +#endif +}; + +void MD5Init(struct MD5Context *context); +void MD5Update(struct MD5Context *context, unsigned char const *buf, + unsigned len); +void MD5Final(unsigned char digest[16], struct MD5Context *context); +void MD5Simple(void const *p, unsigned len, unsigned char output[16]); + +void *hmacmd5_make_context(void); +void hmacmd5_free_context(void *handle); +void hmacmd5_key(void *handle, void const *key, int len); +void hmacmd5_do_hmac(void *handle, unsigned char const *blk, int len, + unsigned char *hmac); + +typedef struct { + uint32 h[5]; + unsigned char block[64]; + int blkused; + uint32 lenhi, lenlo; +} SHA_State; +void SHA_Init(SHA_State * s); +void SHA_Bytes(SHA_State * s, const void *p, int len); +void SHA_Final(SHA_State * s, unsigned char *output); +void SHA_Simple(const void *p, int len, unsigned char *output); + +void hmac_sha1_simple(void *key, int keylen, void *data, int datalen, + unsigned char *output); +typedef struct { + uint32 h[8]; + unsigned char block[64]; + int blkused; + uint32 lenhi, lenlo; +} SHA256_State; +void SHA256_Init(SHA256_State * s); +void SHA256_Bytes(SHA256_State * s, const void *p, int len); +void SHA256_Final(SHA256_State * s, unsigned char *output); +void SHA256_Simple(const void *p, int len, unsigned char *output); + +typedef struct { + uint64 h[8]; + unsigned char block[128]; + int blkused; + uint32 len[4]; +} SHA512_State; +void SHA512_Init(SHA512_State * s); +void SHA512_Bytes(SHA512_State * s, const void *p, int len); +void SHA512_Final(SHA512_State * s, unsigned char *output); +void SHA512_Simple(const void *p, int len, unsigned char *output); + +struct ssh_cipher { + 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 *(*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; + unsigned int flags; +#define SSH_CIPHER_IS_CBC 1 + char *text_name; +}; + +struct ssh2_ciphers { + int nciphers; + const struct ssh2_cipher *const *list; +}; + +struct ssh_mac { + void *(*make_context)(void); + void (*free_context)(void *); + void (*setkey) (void *, unsigned char *key); + /* whole-packet operations */ + void (*generate) (void *, unsigned char *blk, int len, unsigned long seq); + int (*verify) (void *, unsigned char *blk, int len, unsigned long seq); + /* partial-packet operations */ + void (*start) (void *); + void (*bytes) (void *, unsigned char const *, int); + void (*genresult) (void *, unsigned char *); + int (*verresult) (void *, unsigned char const *); + char *name; + int len; + char *text_name; +}; + +struct ssh_hash { + void *(*init)(void); /* also allocates context */ + void (*bytes)(void *, void *, int); + void (*final)(void *, unsigned char *); /* also frees context */ + int hlen; /* output length in bytes */ + char *text_name; +}; + +struct ssh_kex { + char *name, *groupname; + enum { KEXTYPE_DH, KEXTYPE_RSA } main_type; + /* For DH */ + const unsigned char *pdata, *gdata; /* NULL means group exchange */ + int plen, glen; + const struct ssh_hash *hash; +}; + +struct ssh_kexes { + int nkexes; + const struct ssh_kex *const *list; +}; + +struct ssh_signkey { + void *(*newkey) (char *data, int len); + void (*freekey) (void *key); + char *(*fmtkey) (void *key); + unsigned char *(*public_blob) (void *key, int *len); + unsigned char *(*private_blob) (void *key, int *len); + void *(*createkey) (unsigned char *pub_blob, int pub_len, + unsigned char *priv_blob, int priv_len); + void *(*openssh_createkey) (unsigned char **blob, int *len); + int (*openssh_fmtkey) (void *key, unsigned char *blob, int len); + int (*pubkey_bits) (void *blob, int len); + char *(*fingerprint) (void *key); + int (*verifysig) (void *key, char *sig, int siglen, + char *data, int datalen); + unsigned char *(*sign) (void *key, char *data, int datalen, + int *siglen); + char *name; + char *keytype; /* for host key cache */ +}; + +struct ssh_compress { + char *name; + /* For zlib@openssh.com: if non-NULL, this name will be considered once + * userauth has completed successfully. */ + char *delayed_name; + 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); + void (*decompress_cleanup) (void *); + int (*decompress) (void *, unsigned char *block, int len, + unsigned char **outblock, int *outlen); + int (*disable_compression) (void *); + char *text_name; +}; + +struct ssh2_userkey { + const struct ssh_signkey *alg; /* the key algorithm */ + void *data; /* the key data */ + char *comment; /* the key comment */ +}; + +/* The maximum length of any hash algorithm used in kex. (bytes) */ +#define SSH2_KEX_MAX_HASH_LEN (32) /* SHA-256 */ + +extern const struct ssh_cipher ssh_3des; +extern const struct ssh_cipher ssh_des; +extern const struct ssh_cipher ssh_blowfish_ssh1; +extern const struct ssh2_ciphers ssh2_3des; +extern const struct ssh2_ciphers ssh2_des; +extern const struct ssh2_ciphers ssh2_aes; +extern const struct ssh2_ciphers ssh2_blowfish; +extern const struct ssh2_ciphers ssh2_arcfour; +extern const struct ssh_hash ssh_sha1; +extern const struct ssh_hash ssh_sha256; +extern const struct ssh_kexes ssh_diffiehellman_group1; +extern const struct ssh_kexes ssh_diffiehellman_group14; +extern const struct ssh_kexes ssh_diffiehellman_gex; +extern const struct ssh_kexes ssh_rsa_kex; +extern const struct ssh_signkey ssh_dss; +extern const struct ssh_signkey ssh_rsa; +extern const struct ssh_mac ssh_hmac_md5; +extern const struct ssh_mac ssh_hmac_sha1; +extern const struct ssh_mac ssh_hmac_sha1_buggy; +extern const struct ssh_mac ssh_hmac_sha1_96; +extern const struct ssh_mac ssh_hmac_sha1_96_buggy; +extern const struct ssh_mac ssh_hmac_sha256; + +void *aes_make_context(void); +void aes_free_context(void *handle); +void aes128_key(void *handle, unsigned char *key); +void aes192_key(void *handle, unsigned char *key); +void aes256_key(void *handle, unsigned char *key); +void aes_iv(void *handle, unsigned char *iv); +void aes_ssh2_encrypt_blk(void *handle, unsigned char *blk, int len); +void aes_ssh2_decrypt_blk(void *handle, unsigned char *blk, int len); + +/* + * PuTTY version number formatted as an SSH version string. + */ +extern char sshver[]; + +/* + * Gross hack: pscp will try to start SFTP but fall back to scp1 if + * 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(void *handle); + +#ifndef MSCRYPTOAPI +void SHATransform(word32 * digest, word32 * data); +#endif + +int random_byte(void); +void random_add_noise(void *noise, int length); +void random_add_heavynoise(void *noise, int length); + +void logevent(void *, const char *); + +struct PortForwarding; + +/* Allocate and register a new channel for port forwarding */ +void *new_sock_channel(void *handle, struct PortForwarding *pf); +void ssh_send_port_open(void *channel, char *hostname, int port, char *org); + +/* Exports from portfwd.c */ +extern char *pfd_connect(struct PortForwarding **pf, char *hostname, int port, + void *c, Conf *conf, int addressfamily); +extern void pfd_close(struct PortForwarding *); +extern int pfd_send(struct PortForwarding *, char *data, int len); +extern void pfd_send_eof(struct PortForwarding *); +extern void pfd_confirm(struct PortForwarding *); +extern void pfd_unthrottle(struct PortForwarding *); +extern void pfd_override_throttle(struct PortForwarding *, int enable); +struct PortListener; +/* desthost == NULL indicates dynamic (SOCKS) port forwarding */ +extern char *pfl_listen(char *desthost, int destport, char *srcaddr, + int port, void *backhandle, Conf *conf, + struct PortListener **pl, int address_family); +extern void pfl_terminate(struct PortListener *); + +/* Exports from x11fwd.c */ +enum { + X11_TRANS_IPV4 = 0, X11_TRANS_IPV6 = 6, X11_TRANS_UNIX = 256 +}; +struct X11Display { + /* Broken-down components of the display name itself */ + int unixdomain; + char *hostname; + int displaynum; + int screennum; + /* OSX sometimes replaces all the above with a full Unix-socket pathname */ + char *unixsocketpath; + + /* PuTTY networking SockAddr to connect to the display, and associated + * gubbins */ + SockAddr addr; + int port; + char *realhost; + + /* Our local auth details for talking to the real X display. */ + int localauthproto; + unsigned char *localauthdata; + int localauthdatalen; +}; +struct X11FakeAuth { + /* Auth details we invented for a virtual display on the SSH server. */ + int proto; + unsigned char *data; + int datalen; + char *protoname; + char *datastring; + + /* The encrypted form of the first block, in XDM-AUTHORIZATION-1. + * Used as part of the key when these structures are organised + * into a tree. See x11_invent_fake_auth for explanation. */ + unsigned char *xa1_firstblock; + + /* + * Used inside x11fwd.c to remember recently seen + * XDM-AUTHORIZATION-1 strings, to avoid replay attacks. + */ + tree234 *xdmseen; + + /* + * What to do with an X connection matching this auth data. + */ + struct X11Display *disp; + void *share_cs, *share_chan; +}; +void *x11_make_greeting(int endian, int protomajor, int protominor, + int auth_proto, const void *auth_data, int auth_len, + const char *peer_ip, int peer_port, + int *outlen); +int x11_authcmp(void *av, void *bv); /* for putting X11FakeAuth in a tree234 */ +/* + * x11_setup_display() parses the display variable and fills in an + * X11Display structure. Some remote auth details are invented; + * the supplied authtype parameter configures the preferred + * authorisation protocol to use at the remote end. The local auth + * details are looked up by calling platform_get_x11_auth. + */ +extern struct X11Display *x11_setup_display(char *display, Conf *); +void x11_free_display(struct X11Display *disp); +struct X11FakeAuth *x11_invent_fake_auth(tree234 *t, int authtype); +void x11_free_fake_auth(struct X11FakeAuth *auth); +struct X11Connection; /* opaque outside x11fwd.c */ +struct X11Connection *x11_init(tree234 *authtree, void *, const char *, int); +extern void x11_close(struct X11Connection *); +extern int x11_send(struct X11Connection *, char *, int); +extern void x11_send_eof(struct X11Connection *s); +extern void x11_unthrottle(struct X11Connection *s); +extern void x11_override_throttle(struct X11Connection *s, int enable); +char *x11_display(const char *display); +/* Platform-dependent X11 functions */ +extern void platform_get_x11_auth(struct X11Display *display, Conf *); + /* examine a mostly-filled-in X11Display and fill in localauth* */ +extern const int platform_uses_x11_unix_by_default; + /* choose default X transport in the absence of a specified one */ +SockAddr platform_get_x11_unix_address(const char *path, int displaynum); + /* make up a SockAddr naming the address for displaynum */ +char *platform_get_x_display(void); + /* allocated local X display string, if any */ +/* Callbacks in x11.c usable _by_ platform X11 functions */ +/* + * This function does the job of platform_get_x11_auth, provided + * it is told where to find a normally formatted .Xauthority file: + * it opens that file, parses it to find an auth record which + * matches the display details in "display", and fills in the + * localauth fields. + * + * It is expected that most implementations of + * platform_get_x11_auth() will work by finding their system's + * .Xauthority file, adjusting the display details if necessary + * for local oddities like Unix-domain socket transport, and + * calling this function to do the rest of the work. + */ +void x11_get_auth_from_authfile(struct X11Display *display, + const char *authfilename); +int x11_identify_auth_proto(const char *proto); +void *x11_dehexify(const char *hex, int *outlen); + +Bignum copybn(Bignum b); +Bignum bn_power_2(int n); +void bn_restore_invariant(Bignum b); +Bignum bignum_from_long(unsigned long n); +void freebn(Bignum b); +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(const unsigned char *data, int nbytes); +int ssh1_read_bignum(const unsigned char *data, int len, Bignum * result); +int bignum_bitcount(Bignum bn); +int ssh1_bignum_length(Bignum bn); +int ssh2_bignum_length(Bignum bn); +int bignum_byte(Bignum bn, int i); +int bignum_bit(Bignum bn, int i); +void bignum_set_bit(Bignum bn, int i, int value); +int ssh1_write_bignum(void *data, Bignum bn); +Bignum biggcd(Bignum a, Bignum b); +unsigned short bignum_mod_short(Bignum number, unsigned short modulus); +Bignum bignum_add_long(Bignum number, unsigned long addend); +Bignum bigadd(Bignum a, Bignum b); +Bignum bigsub(Bignum a, Bignum b); +Bignum bigmul(Bignum a, Bignum b); +Bignum bigmuladd(Bignum a, Bignum b, Bignum addend); +Bignum bigdiv(Bignum a, Bignum b); +Bignum bigmod(Bignum a, Bignum b); +Bignum modinv(Bignum number, Bignum modulus); +Bignum bignum_bitmask(Bignum number); +Bignum bignum_rshift(Bignum number, int shift); +int bignum_cmp(Bignum a, Bignum b); +char *bignum_decimal(Bignum x); + +#ifdef DEBUG +void diagbn(char *prefix, Bignum md); +#endif + +void *dh_setup_group(const struct ssh_kex *kex); +void *dh_setup_gex(Bignum pval, Bignum gval); +void dh_cleanup(void *); +Bignum dh_create_e(void *, int nbits); +Bignum dh_find_K(void *, Bignum f); + +int loadrsakey(const Filename *filename, struct RSAKey *key, + char *passphrase, const char **errorstr); +int rsakey_encrypted(const Filename *filename, char **comment); +int rsakey_pubblob(const Filename *filename, void **blob, int *bloblen, + char **commentptr, const char **errorstr); + +int saversakey(const Filename *filename, struct RSAKey *key, char *passphrase); + +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; +#define SSH2_WRONG_PASSPHRASE (&ssh2_wrong_passphrase) + +int ssh2_userkey_encrypted(const Filename *filename, char **comment); +struct ssh2_userkey *ssh2_load_userkey(const Filename *filename, + char *passphrase, const char **errorstr); +unsigned char *ssh2_userkey_loadpub(const Filename *filename, char **algorithm, + int *pub_blob_len, char **commentptr, + const char **errorstr); +int ssh2_save_userkey(const Filename *filename, struct ssh2_userkey *key, + char *passphrase); +const struct ssh_signkey *find_pubkey_alg(const char *name); + +enum { + SSH_KEYTYPE_UNOPENABLE, + SSH_KEYTYPE_UNKNOWN, + SSH_KEYTYPE_SSH1, SSH_KEYTYPE_SSH2, + SSH_KEYTYPE_OPENSSH, SSH_KEYTYPE_SSHCOM +}; +int key_type(const Filename *filename); +char *key_type_to_str(int type); + +int import_possible(int type); +int import_target_type(int type); +int import_encrypted(const Filename *filename, int type, char **comment); +int import_ssh1(const Filename *filename, int type, + struct RSAKey *key, char *passphrase, const char **errmsg_p); +struct ssh2_userkey *import_ssh2(const Filename *filename, int type, + char *passphrase, const char **errmsg_p); +int export_ssh1(const Filename *filename, int type, + struct RSAKey *key, char *passphrase); +int export_ssh2(const Filename *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); +void des3_decrypt_pubkey_ossh(unsigned char *key, unsigned char *iv, + unsigned char *blk, int len); +void des3_encrypt_pubkey_ossh(unsigned char *key, unsigned char *iv, + unsigned char *blk, int len); +void aes256_encrypt_pubkey(unsigned char *key, unsigned char *blk, + int len); +void aes256_decrypt_pubkey(unsigned char *key, unsigned char *blk, + int len); + +void des_encrypt_xdmauth(const unsigned char *key, + unsigned char *blk, int len); +void des_decrypt_xdmauth(const unsigned char *key, + unsigned char *blk, int len); + +/* + * For progress updates in the key generation utility. + */ +#define PROGFN_INITIALISE 1 +#define PROGFN_LIN_PHASE 2 +#define PROGFN_EXP_PHASE 3 +#define PROGFN_PHASE_EXTENT 4 +#define PROGFN_READY 5 +#define PROGFN_PROGRESS 6 +typedef void (*progfn_t) (void *param, int action, int phase, int progress); + +int rsa_generate(struct RSAKey *key, int bits, progfn_t pfn, + void *pfnparam); +int dsa_generate(struct dss_key *key, int bits, progfn_t pfn, + void *pfnparam); +Bignum primegen(int bits, int modulus, int residue, Bignum factor, + int phase, progfn_t pfn, void *pfnparam, unsigned firstbits); +void invent_firstbits(unsigned *one, unsigned *two); + + +/* + * zlib compression. + */ +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(void *, unsigned char *block, int len, + unsigned char **outblock, int *outlen); + +/* + * Connection-sharing API provided by platforms. This function must + * either: + * - return SHARE_NONE and do nothing + * - return SHARE_DOWNSTREAM and set *sock to a Socket connected to + * downplug + * - return SHARE_UPSTREAM and set *sock to a Socket connected to + * upplug. + */ +enum { SHARE_NONE, SHARE_DOWNSTREAM, SHARE_UPSTREAM }; +int platform_ssh_share(const char *name, Conf *conf, + Plug downplug, Plug upplug, Socket *sock, + char **logtext, char **ds_err, char **us_err, + int can_upstream, int can_downstream); +void platform_ssh_share_cleanup(const char *name); + +/* + * SSH-1 message type codes. + */ +#define SSH1_MSG_DISCONNECT 1 /* 0x1 */ +#define SSH1_SMSG_PUBLIC_KEY 2 /* 0x2 */ +#define SSH1_CMSG_SESSION_KEY 3 /* 0x3 */ +#define SSH1_CMSG_USER 4 /* 0x4 */ +#define SSH1_CMSG_AUTH_RSA 6 /* 0x6 */ +#define SSH1_SMSG_AUTH_RSA_CHALLENGE 7 /* 0x7 */ +#define SSH1_CMSG_AUTH_RSA_RESPONSE 8 /* 0x8 */ +#define SSH1_CMSG_AUTH_PASSWORD 9 /* 0x9 */ +#define SSH1_CMSG_REQUEST_PTY 10 /* 0xa */ +#define SSH1_CMSG_WINDOW_SIZE 11 /* 0xb */ +#define SSH1_CMSG_EXEC_SHELL 12 /* 0xc */ +#define SSH1_CMSG_EXEC_CMD 13 /* 0xd */ +#define SSH1_SMSG_SUCCESS 14 /* 0xe */ +#define SSH1_SMSG_FAILURE 15 /* 0xf */ +#define SSH1_CMSG_STDIN_DATA 16 /* 0x10 */ +#define SSH1_SMSG_STDOUT_DATA 17 /* 0x11 */ +#define SSH1_SMSG_STDERR_DATA 18 /* 0x12 */ +#define SSH1_CMSG_EOF 19 /* 0x13 */ +#define SSH1_SMSG_EXIT_STATUS 20 /* 0x14 */ +#define SSH1_MSG_CHANNEL_OPEN_CONFIRMATION 21 /* 0x15 */ +#define SSH1_MSG_CHANNEL_OPEN_FAILURE 22 /* 0x16 */ +#define SSH1_MSG_CHANNEL_DATA 23 /* 0x17 */ +#define SSH1_MSG_CHANNEL_CLOSE 24 /* 0x18 */ +#define SSH1_MSG_CHANNEL_CLOSE_CONFIRMATION 25 /* 0x19 */ +#define SSH1_SMSG_X11_OPEN 27 /* 0x1b */ +#define SSH1_CMSG_PORT_FORWARD_REQUEST 28 /* 0x1c */ +#define SSH1_MSG_PORT_OPEN 29 /* 0x1d */ +#define SSH1_CMSG_AGENT_REQUEST_FORWARDING 30 /* 0x1e */ +#define SSH1_SMSG_AGENT_OPEN 31 /* 0x1f */ +#define SSH1_MSG_IGNORE 32 /* 0x20 */ +#define SSH1_CMSG_EXIT_CONFIRMATION 33 /* 0x21 */ +#define SSH1_CMSG_X11_REQUEST_FORWARDING 34 /* 0x22 */ +#define SSH1_CMSG_AUTH_RHOSTS_RSA 35 /* 0x23 */ +#define SSH1_MSG_DEBUG 36 /* 0x24 */ +#define SSH1_CMSG_REQUEST_COMPRESSION 37 /* 0x25 */ +#define SSH1_CMSG_AUTH_TIS 39 /* 0x27 */ +#define SSH1_SMSG_AUTH_TIS_CHALLENGE 40 /* 0x28 */ +#define SSH1_CMSG_AUTH_TIS_RESPONSE 41 /* 0x29 */ +#define SSH1_CMSG_AUTH_CCARD 70 /* 0x46 */ +#define SSH1_SMSG_AUTH_CCARD_CHALLENGE 71 /* 0x47 */ +#define SSH1_CMSG_AUTH_CCARD_RESPONSE 72 /* 0x48 */ + +#define SSH1_AUTH_RHOSTS 1 /* 0x1 */ +#define SSH1_AUTH_RSA 2 /* 0x2 */ +#define SSH1_AUTH_PASSWORD 3 /* 0x3 */ +#define SSH1_AUTH_RHOSTS_RSA 4 /* 0x4 */ +#define SSH1_AUTH_TIS 5 /* 0x5 */ +#define SSH1_AUTH_CCARD 16 /* 0x10 */ + +#define SSH1_PROTOFLAG_SCREEN_NUMBER 1 /* 0x1 */ +/* Mask for protoflags we will echo back to server if seen */ +#define SSH1_PROTOFLAGS_SUPPORTED 0 /* 0x1 */ + +/* + * SSH-2 message type codes. + */ +#define SSH2_MSG_DISCONNECT 1 /* 0x1 */ +#define SSH2_MSG_IGNORE 2 /* 0x2 */ +#define SSH2_MSG_UNIMPLEMENTED 3 /* 0x3 */ +#define SSH2_MSG_DEBUG 4 /* 0x4 */ +#define SSH2_MSG_SERVICE_REQUEST 5 /* 0x5 */ +#define SSH2_MSG_SERVICE_ACCEPT 6 /* 0x6 */ +#define SSH2_MSG_KEXINIT 20 /* 0x14 */ +#define SSH2_MSG_NEWKEYS 21 /* 0x15 */ +#define SSH2_MSG_KEXDH_INIT 30 /* 0x1e */ +#define SSH2_MSG_KEXDH_REPLY 31 /* 0x1f */ +#define SSH2_MSG_KEX_DH_GEX_REQUEST 30 /* 0x1e */ +#define SSH2_MSG_KEX_DH_GEX_GROUP 31 /* 0x1f */ +#define SSH2_MSG_KEX_DH_GEX_INIT 32 /* 0x20 */ +#define SSH2_MSG_KEX_DH_GEX_REPLY 33 /* 0x21 */ +#define SSH2_MSG_KEXRSA_PUBKEY 30 /* 0x1e */ +#define SSH2_MSG_KEXRSA_SECRET 31 /* 0x1f */ +#define SSH2_MSG_KEXRSA_DONE 32 /* 0x20 */ +#define SSH2_MSG_USERAUTH_REQUEST 50 /* 0x32 */ +#define SSH2_MSG_USERAUTH_FAILURE 51 /* 0x33 */ +#define SSH2_MSG_USERAUTH_SUCCESS 52 /* 0x34 */ +#define SSH2_MSG_USERAUTH_BANNER 53 /* 0x35 */ +#define SSH2_MSG_USERAUTH_PK_OK 60 /* 0x3c */ +#define SSH2_MSG_USERAUTH_PASSWD_CHANGEREQ 60 /* 0x3c */ +#define SSH2_MSG_USERAUTH_INFO_REQUEST 60 /* 0x3c */ +#define SSH2_MSG_USERAUTH_INFO_RESPONSE 61 /* 0x3d */ +#define SSH2_MSG_GLOBAL_REQUEST 80 /* 0x50 */ +#define SSH2_MSG_REQUEST_SUCCESS 81 /* 0x51 */ +#define SSH2_MSG_REQUEST_FAILURE 82 /* 0x52 */ +#define SSH2_MSG_CHANNEL_OPEN 90 /* 0x5a */ +#define SSH2_MSG_CHANNEL_OPEN_CONFIRMATION 91 /* 0x5b */ +#define SSH2_MSG_CHANNEL_OPEN_FAILURE 92 /* 0x5c */ +#define SSH2_MSG_CHANNEL_WINDOW_ADJUST 93 /* 0x5d */ +#define SSH2_MSG_CHANNEL_DATA 94 /* 0x5e */ +#define SSH2_MSG_CHANNEL_EXTENDED_DATA 95 /* 0x5f */ +#define SSH2_MSG_CHANNEL_EOF 96 /* 0x60 */ +#define SSH2_MSG_CHANNEL_CLOSE 97 /* 0x61 */ +#define SSH2_MSG_CHANNEL_REQUEST 98 /* 0x62 */ +#define SSH2_MSG_CHANNEL_SUCCESS 99 /* 0x63 */ +#define SSH2_MSG_CHANNEL_FAILURE 100 /* 0x64 */ +#define SSH2_MSG_USERAUTH_GSSAPI_RESPONSE 60 +#define SSH2_MSG_USERAUTH_GSSAPI_TOKEN 61 +#define SSH2_MSG_USERAUTH_GSSAPI_EXCHANGE_COMPLETE 63 +#define SSH2_MSG_USERAUTH_GSSAPI_ERROR 64 +#define SSH2_MSG_USERAUTH_GSSAPI_ERRTOK 65 +#define SSH2_MSG_USERAUTH_GSSAPI_MIC 66 + +/* + * SSH-1 agent messages. + */ +#define SSH1_AGENTC_REQUEST_RSA_IDENTITIES 1 +#define SSH1_AGENT_RSA_IDENTITIES_ANSWER 2 +#define SSH1_AGENTC_RSA_CHALLENGE 3 +#define SSH1_AGENT_RSA_RESPONSE 4 +#define SSH1_AGENTC_ADD_RSA_IDENTITY 7 +#define SSH1_AGENTC_REMOVE_RSA_IDENTITY 8 +#define SSH1_AGENTC_REMOVE_ALL_RSA_IDENTITIES 9 /* openssh private? */ + +/* + * Messages common to SSH-1 and OpenSSH's SSH-2. + */ +#define SSH_AGENT_FAILURE 5 +#define SSH_AGENT_SUCCESS 6 + +/* + * OpenSSH's SSH-2 agent messages. + */ +#define SSH2_AGENTC_REQUEST_IDENTITIES 11 +#define SSH2_AGENT_IDENTITIES_ANSWER 12 +#define SSH2_AGENTC_SIGN_REQUEST 13 +#define SSH2_AGENT_SIGN_RESPONSE 14 +#define SSH2_AGENTC_ADD_IDENTITY 17 +#define SSH2_AGENTC_REMOVE_IDENTITY 18 +#define SSH2_AGENTC_REMOVE_ALL_IDENTITIES 19 + +/* + * Assorted other SSH-related enumerations. + */ +#define SSH2_DISCONNECT_HOST_NOT_ALLOWED_TO_CONNECT 1 /* 0x1 */ +#define SSH2_DISCONNECT_PROTOCOL_ERROR 2 /* 0x2 */ +#define SSH2_DISCONNECT_KEY_EXCHANGE_FAILED 3 /* 0x3 */ +#define SSH2_DISCONNECT_HOST_AUTHENTICATION_FAILED 4 /* 0x4 */ +#define SSH2_DISCONNECT_MAC_ERROR 5 /* 0x5 */ +#define SSH2_DISCONNECT_COMPRESSION_ERROR 6 /* 0x6 */ +#define SSH2_DISCONNECT_SERVICE_NOT_AVAILABLE 7 /* 0x7 */ +#define SSH2_DISCONNECT_PROTOCOL_VERSION_NOT_SUPPORTED 8 /* 0x8 */ +#define SSH2_DISCONNECT_HOST_KEY_NOT_VERIFIABLE 9 /* 0x9 */ +#define SSH2_DISCONNECT_CONNECTION_LOST 10 /* 0xa */ +#define SSH2_DISCONNECT_BY_APPLICATION 11 /* 0xb */ +#define SSH2_DISCONNECT_TOO_MANY_CONNECTIONS 12 /* 0xc */ +#define SSH2_DISCONNECT_AUTH_CANCELLED_BY_USER 13 /* 0xd */ +#define SSH2_DISCONNECT_NO_MORE_AUTH_METHODS_AVAILABLE 14 /* 0xe */ +#define SSH2_DISCONNECT_ILLEGAL_USER_NAME 15 /* 0xf */ + +#define SSH2_OPEN_ADMINISTRATIVELY_PROHIBITED 1 /* 0x1 */ +#define SSH2_OPEN_CONNECT_FAILED 2 /* 0x2 */ +#define SSH2_OPEN_UNKNOWN_CHANNEL_TYPE 3 /* 0x3 */ +#define SSH2_OPEN_RESOURCE_SHORTAGE 4 /* 0x4 */ + +#define SSH2_EXTENDED_DATA_STDERR 1 /* 0x1 */ + +/* + * Need this to warn about support for the original SSH-2 keyfile + * format. + */ +void old_keyfile_warning(void); -- cgit v1.2.3