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server kex done :)

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git-svn-id: svn+ssh://svn.berlios.de/svnroot/repos/libssh/trunk@6 7dcaeef0-15fb-0310-b436-a5af3365683c
This commit is contained in:
Aris Adamantiadis
2005-08-07 10:48:08 +00:00
parent 3113d87566
commit 5c26ae7354
19 changed files with 599 additions and 156 deletions
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59
libssh/wrapper.c
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@@ -299,7 +299,6 @@ static int crypt_set_algorithms2(SSH_SESSION *session){
}
ssh_say(2,"Set input algorithm %s\n",wanted);
session->next_crypto->in_cipher=cipher_new(i);
/* compression */
if(strstr(session->client_kex.methods[SSH_COMP_C_S],"zlib"))
session->next_crypto->do_compress_out=1;
@@ -327,3 +326,61 @@ int crypt_set_algorithms(SSH_SESSION *session){
crypt_set_algorithms2(session);
}
int crypt_set_algorithms_server(SSH_SESSION *session){
/* we must scan the kex entries to find crypto algorithms and set their appropriate structure */
int i=0;
/* out */
char *server=session->server_kex.methods[SSH_CRYPT_S_C];
char *client=session->client_kex.methods[SSH_CRYPT_S_C];
char *match=ssh_find_matching(client,server);
while(ssh_ciphertab[i].name && strcmp(match,ssh_ciphertab[i].name))
i++;
if(!ssh_ciphertab[i].name){
ssh_set_error(session,SSH_FATAL,"Crypt_set_algorithms : no crypto algorithm function found for %s",server);
return -1;
}
ssh_say(2,"Set output algorithm %s\n",match);
session->next_crypto->out_cipher=cipher_new(i);
i=0;
/* in */
client=session->client_kex.methods[SSH_CRYPT_C_S];
server=session->server_kex.methods[SSH_CRYPT_S_C];
match=ssh_find_matching(client,server);
while(ssh_ciphertab[i].name && strcmp(match,ssh_ciphertab[i].name))
i++;
if(!ssh_ciphertab[i].name){
ssh_set_error(session,SSH_FATAL,"Crypt_set_algorithms : no crypto algorithm function found for %s",server);
return -1;
}
ssh_say(2,"Set input algorithm %s\n",match);
session->next_crypto->in_cipher=cipher_new(i);
/* compression */
client=session->client_kex.methods[SSH_CRYPT_C_S];
server=session->server_kex.methods[SSH_CRYPT_C_S];
match=ssh_find_matching(client,server);
if(match && !strcmp(match,"zlib")){
ssh_say(2,"enabling C->S compression\n");
session->next_crypto->do_compress_in=1;
}
client=session->client_kex.methods[SSH_CRYPT_S_C];
server=session->server_kex.methods[SSH_CRYPT_S_C];
match=ssh_find_matching(client,server);
if(match && !strcmp(match,"zlib")){
ssh_say(2,"enabling S->C compression\n");
session->next_crypto->do_compress_out=1;
}
server=session->server_kex.methods[SSH_HOSTKEYS];
client=session->client_kex.methods[SSH_HOSTKEYS];
match=ssh_find_matching(client,server);
if(!strcmp(match,"ssh-dss"))
session->hostkeys=TYPE_DSS;
else if(!strcmp(match,"ssh-rsa"))
session->hostkeys=TYPE_RSA;
else {
ssh_set_error(session,SSH_FATAL,"cannot know what %s is into %s",match,server);
return -1;
}
return 0;
}