static struct iscsi_chap *chap_server_open(
struct iscsi_conn *conn,
struct iscsi_node_auth *auth,
const char *a_str,
char *aic_str,
unsigned int *aic_len)
{
int ret;
struct iscsi_chap *chap;
if (!(auth->naf_flags & NAF_USERID_SET) ||
!(auth->naf_flags & NAF_PASSWORD_SET)) {
pr_err("CHAP user or password not set for"
" Initiator ACL\n");
return NULL;
}
conn->auth_protocol = kzalloc(sizeof(struct iscsi_chap), GFP_KERNEL);
if (!conn->auth_protocol)
return NULL;
chap = conn->auth_protocol;
ret = chap_check_algorithm(a_str);
switch (ret) {
case CHAP_DIGEST_MD5:
pr_debug("[server] Got CHAP_A=5\n");
/*
* Send back CHAP_A set to MD5.
*/
*aic_len = sprintf(aic_str, "CHAP_A=5");
*aic_len += 1;
chap->digest_type = CHAP_DIGEST_MD5;
pr_debug("[server] Sending CHAP_A=%d\n", chap->digest_type);
break;
case CHAP_DIGEST_UNKNOWN:
default:
pr_err("Unsupported CHAP_A value\n");
kfree(conn->auth_protocol);
return NULL;
}
/*
* Set Identifier.
*/
chap->id = conn->tpg->tpg_chap_id++;
*aic_len += sprintf(aic_str + *aic_len, "CHAP_I=%d", chap->id);
*aic_len += 1;
pr_debug("[server] Sending CHAP_I=%d\n", chap->id);
/*
* Generate Challenge.
*/
if (chap_gen_challenge(conn, 1, aic_str, aic_len) < 0) {
kfree(conn->auth_protocol);
return NULL;
}
return chap;
}
static struct iscsi_chap *chap_server_open(
struct iscsi_conn *conn,
struct iscsi_node_auth *auth,
const char *a_str,
char *aic_str,
unsigned int *aic_len)
{
struct iscsi_chap *chap;
if (!(auth->naf_flags & NAF_USERID_SET) ||
!(auth->naf_flags & NAF_PASSWORD_SET)) {
pr_err("CHAP user or password not set for"
" Initiator ACL\n");
return NULL;
}
conn->auth_protocol = kzalloc(sizeof(struct iscsi_chap), GFP_KERNEL);
if (!conn->auth_protocol)
return NULL;
chap = conn->auth_protocol;
/*
* We only support MD5 MDA presently.
*/
if (strncmp(a_str, "CHAP_A=5", 8)) {
pr_err("CHAP_A is not MD5.\n");
return NULL;
}
pr_debug("[server] Got CHAP_A=5\n");
/*
* Send back CHAP_A set to MD5.
*/
*aic_len = sprintf(aic_str, "CHAP_A=5");
*aic_len += 1;
chap->digest_type = CHAP_DIGEST_MD5;
pr_debug("[server] Sending CHAP_A=%d\n", chap->digest_type);
/*
* Set Identifier.
*/
chap->id = ISCSI_TPG_C(conn)->tpg_chap_id++;
*aic_len += sprintf(aic_str + *aic_len, "CHAP_I=%d", chap->id);
*aic_len += 1;
pr_debug("[server] Sending CHAP_I=%d\n", chap->id);
/*
* Generate Challenge.
*/
chap_gen_challenge(conn, 1, aic_str, aic_len);
return chap;
}
