| 13 |
#define USER "test" |
#define USER "test" |
| 14 |
#define PASSWORD "123456" |
#define PASSWORD "123456" |
| 15 |
|
|
| 16 |
static ssh_channel channel; |
static ssh_channel SSH_channel; |
| 17 |
static int authenticated = 0; |
static int authenticated = 0; |
| 18 |
static int tries = 0; |
static int tries = 0; |
| 19 |
static int error = 0; |
static int error = 0; |
| 64 |
log_common("Allocated shell\n"); |
log_common("Allocated shell\n"); |
| 65 |
return 0; |
return 0; |
| 66 |
} |
} |
| 67 |
|
|
| 68 |
struct ssh_channel_callbacks_struct channel_cb = { |
struct ssh_channel_callbacks_struct channel_cb = { |
| 69 |
.channel_pty_request_function = pty_request, |
.channel_pty_request_function = pty_request, |
| 70 |
.channel_shell_request_function = shell_request}; |
.channel_shell_request_function = shell_request}; |
| 74 |
(void)session; |
(void)session; |
| 75 |
(void)userdata; |
(void)userdata; |
| 76 |
|
|
| 77 |
if (channel != NULL) |
if (SSH_channel != NULL) |
| 78 |
return NULL; |
return NULL; |
| 79 |
|
|
| 80 |
log_common("Allocated session channel\n"); |
log_common("Allocated session channel\n"); |
| 81 |
channel = ssh_channel_new(session); |
SSH_channel = ssh_channel_new(session); |
| 82 |
ssh_callbacks_init(&channel_cb); |
ssh_callbacks_init(&channel_cb); |
| 83 |
ssh_set_channel_callbacks(channel, &channel_cb); |
ssh_set_channel_callbacks(SSH_channel, &channel_cb); |
| 84 |
|
|
| 85 |
return channel; |
return SSH_channel; |
| 86 |
} |
} |
| 87 |
|
|
| 88 |
int ssh_server(const char *hostaddr, unsigned int port) |
int ssh_server(const char *hostaddr, unsigned int port) |
| 89 |
{ |
{ |
|
ssh_session session; |
|
| 90 |
ssh_bind sshbind; |
ssh_bind sshbind; |
| 91 |
|
ssh_session session; |
| 92 |
ssh_event event; |
ssh_event event; |
| 93 |
|
|
| 94 |
struct ssh_server_callbacks_struct cb = { |
struct ssh_server_callbacks_struct cb = { |
| 100 |
char host[128] = ""; |
char host[128] = ""; |
| 101 |
int i, r; |
int i, r; |
| 102 |
|
|
| 103 |
int ssh_log_level = SSH_LOG_WARNING; |
int ssh_log_level = SSH_LOG_FUNCTIONS; |
| 104 |
|
|
| 105 |
ssh_init(); |
ssh_init(); |
| 106 |
|
|
| 109 |
if (ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_BINDADDR, hostaddr) < 0 || |
if (ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_BINDADDR, hostaddr) < 0 || |
| 110 |
ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_BINDPORT, &port) < 0 || |
ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_BINDPORT, &port) < 0 || |
| 111 |
ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_HOSTKEY, SSH_HOST_KEYFILE) < 0 || |
ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_HOSTKEY, SSH_HOST_KEYFILE) < 0 || |
| 112 |
|
ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_HOSTKEY_ALGORITHMS, "ssh-rsa,rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256") < 0 || |
| 113 |
|
ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_KEY_EXCHANGE, "curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1") < 0 || |
| 114 |
|
ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_HMAC_C_S, "umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1") < 0 || |
| 115 |
|
ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_HMAC_S_C, "umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1") < 0 || |
| 116 |
|
ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_CIPHERS_C_S, "chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com") < 0 || |
| 117 |
|
ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_CIPHERS_S_C, "chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com") < 0 || |
| 118 |
ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_LOG_VERBOSITY, &ssh_log_level) < 0) |
ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_LOG_VERBOSITY, &ssh_log_level) < 0) |
| 119 |
{ |
{ |
| 120 |
log_error("Error setting SSH bind options: %s\n", ssh_get_error(sshbind)); |
log_error("Error setting SSH bind options: %s\n", ssh_get_error(sshbind)); |
| 154 |
event = ssh_event_new(); |
event = ssh_event_new(); |
| 155 |
ssh_event_add_session(event, session); |
ssh_event_add_session(event, session); |
| 156 |
|
|
| 157 |
while (!(authenticated && channel != NULL)) |
while (!(authenticated && SSH_channel != NULL)) |
| 158 |
{ |
{ |
| 159 |
if (error) |
if (error) |
| 160 |
break; |
break; |
| 178 |
} |
} |
| 179 |
|
|
| 180 |
snprintf(buf, sizeof(buf), "Hello, welcome to the Sample SSH proxy.\r\nPlease select your destination: "); |
snprintf(buf, sizeof(buf), "Hello, welcome to the Sample SSH proxy.\r\nPlease select your destination: "); |
| 181 |
ssh_channel_write(channel, buf, (uint32_t)strlen(buf)); |
ssh_channel_write(SSH_channel, buf, (uint32_t)strlen(buf)); |
| 182 |
do |
do |
| 183 |
{ |
{ |
| 184 |
i = ssh_channel_read(channel, buf, sizeof(buf), 0); |
i = ssh_channel_read(SSH_channel, buf, sizeof(buf), 0); |
| 185 |
if (i > 0) |
if (i > 0) |
| 186 |
{ |
{ |
| 187 |
ssh_channel_write(channel, buf, (uint32_t)i); |
ssh_channel_write(SSH_channel, buf, (uint32_t)i); |
| 188 |
if (strlen(host) + (size_t)i < sizeof(host)) |
if (strlen(host) + (size_t)i < sizeof(host)) |
| 189 |
{ |
{ |
| 190 |
strncat(host, buf, (size_t)i); |
strncat(host, buf, (size_t)i); |
| 192 |
if (strchr(host, '\x0d')) |
if (strchr(host, '\x0d')) |
| 193 |
{ |
{ |
| 194 |
*strchr(host, '\x0d') = '\0'; |
*strchr(host, '\x0d') = '\0'; |
| 195 |
ssh_channel_write(channel, "\n", 1); |
ssh_channel_write(SSH_channel, "\n", 1); |
| 196 |
break; |
break; |
| 197 |
} |
} |
| 198 |
} |
} |
| 203 |
} |
} |
| 204 |
} while (i > 0); |
} while (i > 0); |
| 205 |
snprintf(buf, sizeof(buf), "Trying to connect to \"%s\"\r\n", host); |
snprintf(buf, sizeof(buf), "Trying to connect to \"%s\"\r\n", host); |
| 206 |
ssh_channel_write(channel, buf, (uint32_t)strlen(buf)); |
ssh_channel_write(SSH_channel, buf, (uint32_t)strlen(buf)); |
| 207 |
log_common("%s", buf); |
log_common("%s", buf); |
| 208 |
|
|
| 209 |
ssh_disconnect(session); |
ssh_disconnect(session); |