static int kbdauth_info_get(SSH_SESSION *session){
STRING *name; /* name of the "asking" window showed to client */
STRING *instruction;
STRING *tmp;
u32 nprompts;
u32 i;
enter_function();
name=buffer_get_ssh_string(session->in_buffer);
instruction=buffer_get_ssh_string(session->in_buffer);
tmp=buffer_get_ssh_string(session->in_buffer);
buffer_get_u32(session->in_buffer,&nprompts);
if(!name || !instruction || !tmp){
if(name)
free(name);
if(instruction)
free(instruction);
// tmp must be empty if we got here
ssh_set_error(session,SSH_FATAL,"Invalid USERAUTH_INFO_REQUEST msg");
leave_function();
return SSH_AUTH_ERROR;
}
if(tmp)
free(tmp); // no use
if(!session->kbdint)
session->kbdint=kbdint_new();
else
kbdint_clean(session->kbdint);
session->kbdint->name=string_to_char(name);
free(name);
session->kbdint->instruction=string_to_char(instruction);
free(instruction);
nprompts=ntohl(nprompts);
if(nprompts>KBDINT_MAX_PROMPT){
ssh_set_error(session,SSH_FATAL,"Too much prompt asked from server: %lu(0x%.8lx)",nprompts,nprompts);
leave_function();
return SSH_AUTH_ERROR;
}
session->kbdint->nprompts=nprompts;
session->kbdint->prompts=malloc(nprompts*sizeof(char *));
memset(session->kbdint->prompts,0,nprompts*sizeof(char *));
session->kbdint->echo=malloc(nprompts);
memset(session->kbdint->echo,0,nprompts);
for(i=0;i<nprompts;++i){
tmp=buffer_get_ssh_string(session->in_buffer);
buffer_get_u8(session->in_buffer,&session->kbdint->echo[i]);
if(!tmp){
ssh_set_error(session,SSH_FATAL,"Short INFO_REQUEST packet");
leave_function();
return SSH_AUTH_ERROR;
}
session->kbdint->prompts[i]=string_to_char(tmp);
free(tmp);
}
leave_function();
return SSH_AUTH_INFO; /* we are not auth. but we parsed the packet */
}
static int kbdauth_info_get(ssh_session session) {
ssh_string name; /* name of the "asking" window showed to client */
ssh_string instruction;
ssh_string tmp;
uint32_t nprompts;
uint32_t i;
enter_function();
name = buffer_get_ssh_string(session->in_buffer);
instruction = buffer_get_ssh_string(session->in_buffer);
tmp = buffer_get_ssh_string(session->in_buffer);
buffer_get_u32(session->in_buffer, &nprompts);
if (name == NULL || instruction == NULL || tmp == NULL) {
string_free(name);
string_free(instruction);
/* tmp if empty if we got here */
ssh_set_error(session, SSH_FATAL, "Invalid USERAUTH_INFO_REQUEST msg");
leave_function();
return SSH_AUTH_ERROR;
}
string_free(tmp);
if (session->kbdint == NULL) {
session->kbdint = kbdint_new();
if (session->kbdint == NULL) {
ssh_set_error(session, SSH_FATAL, "Not enough space");
string_free(name);
string_free(instruction);
leave_function();
return SSH_AUTH_ERROR;
}
} else {
kbdint_clean(session->kbdint);
}
session->kbdint->name = string_to_char(name);
string_free(name);
if (session->kbdint->name == NULL) {
ssh_set_error(session, SSH_FATAL, "Not enough space");
kbdint_free(session->kbdint);
leave_function();
return SSH_AUTH_ERROR;
}
session->kbdint->instruction = string_to_char(instruction);
string_free(instruction);
if (session->kbdint->instruction == NULL) {
ssh_set_error(session, SSH_FATAL, "Not enough space");
kbdint_free(session->kbdint);
session->kbdint = NULL;
leave_function();
return SSH_AUTH_ERROR;
}
nprompts = ntohl(nprompts);
if (nprompts > KBDINT_MAX_PROMPT) {
ssh_set_error(session, SSH_FATAL,
"Too much prompt asked from server: %u (0x%.4x)",
nprompts, nprompts);
kbdint_free(session->kbdint);
session->kbdint = NULL;
leave_function();
return SSH_AUTH_ERROR;
}
session->kbdint->nprompts = nprompts;
session->kbdint->prompts = malloc(nprompts * sizeof(char *));
if (session->kbdint->prompts == NULL) {
session->kbdint->nprompts = 0;
ssh_set_error(session, SSH_FATAL, "No space left");
kbdint_free(session->kbdint);
session->kbdint = NULL;
leave_function();
return SSH_AUTH_ERROR;
}
memset(session->kbdint->prompts, 0, nprompts * sizeof(char *));
session->kbdint->echo = malloc(nprompts);
if (session->kbdint->echo == NULL) {
session->kbdint->nprompts = 0;
ssh_set_error(session, SSH_FATAL, "No space left");
kbdint_free(session->kbdint);
session->kbdint = NULL;
leave_function();
return SSH_AUTH_ERROR;
}
memset(session->kbdint->echo, 0, nprompts);
for (i = 0; i < nprompts; i++) {
tmp = buffer_get_ssh_string(session->in_buffer);
buffer_get_u8(session->in_buffer, &session->kbdint->echo[i]);
if (tmp == NULL) {
ssh_set_error(session, SSH_FATAL, "Short INFO_REQUEST packet");
kbdint_free(session->kbdint);
session->kbdint = NULL;
leave_function();
return SSH_AUTH_ERROR;
}
session->kbdint->prompts[i] = string_to_char(tmp);
string_free(tmp);
if (session->kbdint->prompts[i] == NULL) {
ssh_set_error(session, SSH_FATAL, "Not enough space");
kbdint_free(session->kbdint);
session->kbdint = NULL;
leave_function();
return SSH_AUTH_ERROR;
}
}
leave_function();
return SSH_AUTH_INFO; /* we are not auth. but we parsed the packet */
}
