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Symbolic constants? What are they?

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[originally from svn r217]
This commit is contained in:
Ben Harris 1999-09-07 23:40:19 +00:00
parent 1cd70649c1
commit 30130ec730
2 changed files with 80 additions and 21 deletions
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44
ssh.c
View File

@ -207,7 +207,7 @@ static void ssh_gotdata(Session *sess, unsigned char *data, int datalen) {
sp->pktin.type = sp->pktin.data[sp->pad];
sp->pktin.body = sp->pktin.data+sp->pad+1;
if (sp->pktin.type == 36) { /* SSH_MSG_DEBUG */
if (sp->pktin.type == SSH_MSG_DEBUG) { /* SSH_MSG_DEBUG */
/* FIXME: log it */
} else
ssh_protocol(sess, NULL, 0, 1);
@ -290,7 +290,7 @@ static void ssh_protocol(Session *sess, unsigned char *in, int inlen,
while (!ispkt)
crReturnV(sp->pr_line);
if (sp->pktin.type != 2)
if (sp->pktin.type != SSH_SMSG_PUBLIC_KEY)
fatalbox("Public key packet not received");
memcpy(cookie, sp->pktin.body, 8);
@ -344,7 +344,7 @@ static void ssh_protocol(Session *sess, unsigned char *in, int inlen,
cipher_type = SSH_CIPHER_3DES;
}
s_wrpkt_start(3, len+15);
s_wrpkt_start(SSH_CMSG_SESSION_KEY, len+15);
sp->pktout.body[0] = cipher_type;
memcpy(sp->pktout.body+1, cookie, 8);
sp->pktout.body[9] = (len*8) >> 8;
@ -362,7 +362,7 @@ static void ssh_protocol(Session *sess, unsigned char *in, int inlen,
do { crReturnV(sp->pr_line); } while (!ispkt);
if (sp->pktin.type != 14)
if (sp->pktin.type != SSH_SMSG_SUCCESS)
fatalbox("Encryption not successfully enabled");
fflush(stdout);
@ -412,7 +412,7 @@ static void ssh_protocol(Session *sess, unsigned char *in, int inlen,
sprintf(stuff, "Sent username \"%s\".\r\n", username);
c_write(stuff, strlen(stuff));
}
s_wrpkt_start(4, 4+strlen(username));
s_wrpkt_start(SSH_CMSG_USER, 4+strlen(username));
sp->pktout.body[0] = sp->pktout.body[1] = sp->pktout.body[2] = 0;
sp->pktout.body[3] = strlen(username);
memcpy(sp->pktout.body+4, username, strlen(username));
@ -421,7 +421,7 @@ static void ssh_protocol(Session *sess, unsigned char *in, int inlen,
do { crReturnV(sp->pr_line); } while (!ispkt);
while (sp->pktin.type == 15) {
while (sp->pktin.type == SSH_SMSG_FAILURE) {
static char password[100];
static int pos;
static char c;
@ -452,23 +452,23 @@ static void ssh_protocol(Session *sess, unsigned char *in, int inlen,
}
}
c_write("\r\n", 2);
s_wrpkt_start(9, 4+strlen(password));
s_wrpkt_start(SSH_CMSG_AUTH_PASSWORD, 4+strlen(password));
sp->pktout.body[0] = sp->pktout.body[1] = sp->pktout.body[2] = 0;
sp->pktout.body[3] = strlen(password);
memcpy(sp->pktout.body+4, password, strlen(password));
s_wrpkt();
memset(password, 0, strlen(password));
do { crReturnV(sp->pr_line); } while (!ispkt);
if (sp->pktin.type == 15) {
if (sp->pktin.type == SSH_SMSG_FAILURE) {
c_write("Access denied\r\n", 15);
} else if (sp->pktin.type != 14) {
} else if (sp->pktin.type != SSH_SMSG_SUCCESS) {
fatalbox("Strange packet received, type %d", sp->pktin.type);
}
}
if (!cfg.nopty) {
i = strlen(cfg.termtype);
s_wrpkt_start(10, i+5*4+1);
s_wrpkt_start(SSH_CMSG_REQUEST_PTY, i+5*4+1);
sp->pktout.body[0] = (i >> 24) & 0xFF;
sp->pktout.body[1] = (i >> 16) & 0xFF;
sp->pktout.body[2] = (i >> 8) & 0xFF;
@ -487,14 +487,15 @@ static void ssh_protocol(Session *sess, unsigned char *in, int inlen,
s_wrpkt();
ssh_state = SSH_STATE_INTERMED;
do { crReturnV(sp->pr_line); } while (!ispkt);
if (sp->pktin.type != 14 && sp->pktin.type != 15) {
if (sp->pktin.type != SSH_SMSG_SUCCESS
&& sp->pktin.type != SSH_SMSG_FAILURE) {
fatalbox("Protocol confusion");
} else if (sp->pktin.type == 15) {
} else if (sp->pktin.type == SSH_SMSG_FAILURE) {
c_write("Server refused to allocate pty\r\n", 32);
}
}
s_wrpkt_start(12, 0);
s_wrpkt_start(SSH_CMSG_EXEC_SHELL, 0);
s_wrpkt();
ssh_state = SSH_STATE_SESSION;
@ -504,28 +505,29 @@ static void ssh_protocol(Session *sess, unsigned char *in, int inlen,
while (1) {
crReturnV(sp->pr_line);
if (ispkt) {
if (sp->pktin.type == 17 || sp->pktin.type == 18) {
if (sp->pktin.type == SSH_SMSG_STDOUT_DATA ||
sp->pktin.type == SSH_SMSG_STDERR_DATA) {
long len = 0;
for (i = 0; i < 4; i++)
len = (len << 8) + sp->pktin.body[i];
c_write(sp->pktin.body+4, len);
} else if (sp->pktin.type == 1) {
} else if (sp->pktin.type == SSH_MSG_DISCONNECT) {
/* SSH_MSG_DISCONNECT */
ssh_state = SSH_STATE_CLOSED;
} else if (sp->pktin.type == 14) {
} else if (sp->pktin.type == SSH_SMSG_SUCCESS) {
/* SSH_MSG_SUCCESS: may be from EXEC_SHELL on some servers */
} else if (sp->pktin.type == 15) {
} else if (sp->pktin.type == SSH_SMSG_FAILURE) {
/* SSH_MSG_FAILURE: may be from EXEC_SHELL on some servers
* if no pty is available or in other odd cases. Ignore */
} else if (sp->pktin.type == 20) {
} else if (sp->pktin.type == SSH_SMSG_EXITSTATUS) {
/* EXITSTATUS */
s_wrpkt_start(33, 0);
s_wrpkt_start(SSH_CMSG_EXIT_CONFIRMATION, 0);
s_wrpkt();
} else {
fatalbox("Strange packet received: type %d", sp->pktin.type);
}
} else {
s_wrpkt_start(16, 4+inlen);
s_wrpkt_start(SSH_CMSG_STDIN_DATA, 4+inlen);
sp->pktout.body[0] = (inlen >> 24) & 0xFF;
sp->pktout.body[1] = (inlen >> 16) & 0xFF;
sp->pktout.body[2] = (inlen >> 8) & 0xFF;
@ -671,7 +673,7 @@ static void ssh_size(Session *sess) {
break;
case SSH_STATE_SESSION:
if (!sess->cfg.nopty) {
s_wrpkt_start(11, 16);
s_wrpkt_start(SSH_CMSG_WINDOW_SIZE, 16);
sp->pktout.body[0] = (rows >> 24) & 0xFF;
sp->pktout.body[1] = (rows >> 16) & 0xFF;
sp->pktout.body[2] = (rows >> 8) & 0xFF;

57
ssh.h
View File

@ -1,9 +1,66 @@
#include <string.h>
#define SSH_CIPHER_NONE 0
#define SSH_CIPHER_IDEA 1
#define SSH_CIPHER_DES 2
#define SSH_CIPHER_3DES 3
#define SSH_CIPHER_RC4 5
#define SSH_CIPHER_BLOWFISH 6
#define SSH_AUTH_RHOSTS 1
#define SSH_AUTH_RSA 2
#define SSH_AUTH_PASSWORD 3
#define SSH_AUTH_RHOSTS_RSA 4
#define SSH_PROTOFLAG_SCREEN_NUMBER 0x00000001
#define SSH_PROTOFLAG_HOST_IN_FWD_OPEN 0x00000002
#define SSH_MSG_NONE 0
#define SSH_MSG_DISCONNECT 1
#define SSH_SMSG_PUBLIC_KEY 2
#define SSH_CMSG_SESSION_KEY 3
#define SSH_CMSG_USER 4
#define SSH_CMSG_AUTH_RHOSTS 5
#define SSH_CMSG_AUTH_RSA 6
#define SSH_SMSG_RSA_CHALLENGE 7
#define SSH_CMSG_AUTH_RSA_RESPONSE 8
#define SSH_CMSG_AUTH_PASSWORD 9
#define SSH_CMSG_REQUEST_PTY 10
#define SSH_CMSG_WINDOW_SIZE 11
#define SSH_CMSG_EXEC_SHELL 12
#define SSH_CMSG_EXEC_CMD 13
#define SSH_SMSG_SUCCESS 14
#define SSH_SMSG_FAILURE 15
#define SSH_CMSG_STDIN_DATA 16
#define SSH_SMSG_STDOUT_DATA 17
#define SSH_SMSG_STDERR_DATA 18
#define SSH_CMSG_EOF 19
#define SSH_SMSG_EXITSTATUS 20
#define SSH_MSG_CHANNEL_OPEN_CONFIRMATION 21
#define SSH_MSG_CHANNEL_OPEN_FAILURE 22
#define SSH_MSG_CHANNEL_DATA 23
#define SSH_MSG_CHANNEL_CLOSE 24
#define SSH_MSG_CHANNEL_CLOSE_CONFIRMATION 25
/* 26 was unix-domain X11 forwarding */
#define SSH_SMSG_X11_OPEN 27
#define SSH_CMSG_PORT_FORWARD_REQUEST 28
#define SSH_MSG_PORT_OPEN 29
#define SSH_CMSG_AGENT_REQUEST_FORWARDING 30
#define SSH_SMSG_AGENT_OPEN 31
#define SSH_MSG_IGNORE 32
#define SSH_CMSG_EXIT_CONFIRMATION 33
#define SSH_CMSG_X11_REQUEST_FARWARDING 34
#define SSH_CMSG_AUTH_RHOSTS_RSA 35
#define SSH_MSG_DEBUG 36
#define SSH_CMSG_REQUEST_COMPRESSION 37
#define SSH_CMSG_MAX_PACKET_SIZE 38
#define SSH_CMSG_AUTH_TIS 39
#define SSH_SMSG_AUTH_TIS_CHALLENGE 40
#define SSH_CMSG_AUTH_TIS_RESPONSE 41
#define SSH_CMSG_AUTH_KERBEROS 42
#define SSH_SMSG_AUTH_KERBEROS_RESPONSE 43
#define SSH_CMSG_HAVE_KERBEROS_TGT 44
struct RSAKey {
int bits;
int bytes;