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#include <stdlib.h>
#include <assert.h>
#include <libssh/callbacks.h>
#include <libssh/server.h>
#include "server_ssh.h"
#include "server.h"
#include "log.h"
struct server_callbacks potd_ssh_callbacks = {
.on_listen = ssh_on_listen,
.on_shutdown = ssh_on_shutdown
};
static int set_default_keys(ssh_bind sshbind, int rsa_already_set,
int dsa_already_set, int ecdsa_already_set);
int ssh_init_cb(struct server_ctx *ctx)
{
ctx->server_cbs = potd_ssh_callbacks;
if (ssh_init())
return 1;
ssh_data *d = (ssh_data *) calloc(1, sizeof(*d));
assert(d);
d->sshbind = ssh_bind_new();
d->session = ssh_new();
ctx->server_dat.data = d;
if (!d->sshbind || !d->session)
return 1;
if (set_default_keys(d->sshbind, 0, 0, 0))
return 1;
return 0;
}
int ssh_on_listen(struct server_data *data)
{
ssh_data *d = (ssh_data *) data->data;
if (ssh_bind_listen(d->sshbind) < 0) {
E("Error listening to SSH socket: %s", ssh_get_error(d->sshbind));
}
return 0;
}
int ssh_on_shutdown(struct server_data *data)
{
return 0;
}
static int set_default_keys(ssh_bind sshbind, int rsa_already_set,
int dsa_already_set, int ecdsa_already_set)
{
if (!rsa_already_set) {
if (ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_RSAKEY,
"./ssh_host_rsa_key"))
return 1;
}
if (!dsa_already_set) {
if (ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_DSAKEY,
"./ssh_host_dsa_key"))
return 1;
}
if (!ecdsa_already_set) {
if (ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_ECDSAKEY,
"./ssh_host_ecdsa_key"))
return 1;
}
return 0;
}
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