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r17283: use the async calls of auth_check_password() and gensec_update()

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in the smb server.

metze
This commit is contained in:
Stefan Metzmacher 2006-07-27 19:07:15 +00:00 committed by Gerald (Jerry) Carter
parent 43f99f1171
commit 216e02c69c
2 changed files with 330 additions and 245 deletions
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237
source/smb_server/smb/reply.c
View File

@ -1776,25 +1776,106 @@ void smbsrv_reply_getattrE(struct smbsrv_request *req)
SMBSRV_CALL_NTVFS_BACKEND(ntvfs_qfileinfo(req->ntvfs, info));
}
void smbsrv_reply_sesssetup_send(struct smbsrv_request *req,
union smb_sesssetup *io,
NTSTATUS status)
{
switch (io->old.level) {
case RAW_SESSSETUP_OLD:
if (!NT_STATUS_IS_OK(status)) {
smbsrv_send_error(req, status);
return;
}
/* construct reply */
smbsrv_setup_reply(req, 3, 0);
SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
SSVAL(req->out.vwv, VWV(1), 0);
SSVAL(req->out.vwv, VWV(2), io->old.out.action);
SSVAL(req->out.hdr, HDR_UID, io->old.out.vuid);
smbsrv_chain_reply(req);
return;
case RAW_SESSSETUP_NT1:
if (!NT_STATUS_IS_OK(status)) {
smbsrv_send_error(req, status);
return;
}
/* construct reply */
smbsrv_setup_reply(req, 3, 0);
SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
SSVAL(req->out.vwv, VWV(1), 0);
SSVAL(req->out.vwv, VWV(2), io->nt1.out.action);
SSVAL(req->out.hdr, HDR_UID, io->nt1.out.vuid);
req_push_str(req, NULL, io->nt1.out.os, -1, STR_TERMINATE);
req_push_str(req, NULL, io->nt1.out.lanman, -1, STR_TERMINATE);
req_push_str(req, NULL, io->nt1.out.domain, -1, STR_TERMINATE);
smbsrv_chain_reply(req);
return;
case RAW_SESSSETUP_SPNEGO:
if (!NT_STATUS_IS_OK(status) &&
!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
smbsrv_send_error(req, status);
return;
}
/* construct reply */
smbsrv_setup_reply(req, 4, io->spnego.out.secblob.length);
if (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
smbsrv_setup_error(req, status);
}
SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
SSVAL(req->out.vwv, VWV(1), 0);
SSVAL(req->out.vwv, VWV(2), io->spnego.out.action);
SSVAL(req->out.vwv, VWV(3), io->spnego.out.secblob.length);
SSVAL(req->out.hdr, HDR_UID, io->spnego.out.vuid);
memcpy(req->out.data, io->spnego.out.secblob.data, io->spnego.out.secblob.length);
req_push_str(req, NULL, io->spnego.out.os, -1, STR_TERMINATE);
req_push_str(req, NULL, io->spnego.out.lanman, -1, STR_TERMINATE);
req_push_str(req, NULL, io->spnego.out.workgroup, -1, STR_TERMINATE);
smbsrv_chain_reply(req);
return;
case RAW_SESSSETUP_SMB2:
break;
}
smbsrv_send_error(req, NT_STATUS_INTERNAL_ERROR);
}
/****************************************************************************
reply to an old style session setup command
****************************************************************************/
static void reply_sesssetup_old(struct smbsrv_request *req)
{
NTSTATUS status;
union smb_sesssetup sess;
uint8_t *p;
uint16_t passlen;
union smb_sesssetup *io;
sess.old.level = RAW_SESSSETUP_OLD;
SMBSRV_TALLOC_IO_PTR(io, union smb_sesssetup);
io->old.level = RAW_SESSSETUP_OLD;
/* parse request */
sess.old.in.bufsize = SVAL(req->in.vwv, VWV(2));
sess.old.in.mpx_max = SVAL(req->in.vwv, VWV(3));
sess.old.in.vc_num = SVAL(req->in.vwv, VWV(4));
sess.old.in.sesskey = IVAL(req->in.vwv, VWV(5));
passlen = SVAL(req->in.vwv, VWV(7));
io->old.in.bufsize = SVAL(req->in.vwv, VWV(2));
io->old.in.mpx_max = SVAL(req->in.vwv, VWV(3));
io->old.in.vc_num = SVAL(req->in.vwv, VWV(4));
io->old.in.sesskey = IVAL(req->in.vwv, VWV(5));
passlen = SVAL(req->in.vwv, VWV(7));
/* check the request isn't malformed */
if (req_data_oob(req, req->in.data, passlen)) {
@ -1803,58 +1884,42 @@ static void reply_sesssetup_old(struct smbsrv_request *req)
}
p = req->in.data;
if (!req_pull_blob(req, p, passlen, &sess.old.in.password)) {
if (!req_pull_blob(req, p, passlen, &io->old.in.password)) {
smbsrv_send_error(req, NT_STATUS_FOOBAR);
return;
}
p += passlen;
p += req_pull_string(req, &sess.old.in.user, p, -1, STR_TERMINATE);
p += req_pull_string(req, &sess.old.in.domain, p, -1, STR_TERMINATE);
p += req_pull_string(req, &sess.old.in.os, p, -1, STR_TERMINATE);
p += req_pull_string(req, &sess.old.in.lanman, p, -1, STR_TERMINATE);
p += req_pull_string(req, &io->old.in.user, p, -1, STR_TERMINATE);
p += req_pull_string(req, &io->old.in.domain, p, -1, STR_TERMINATE);
p += req_pull_string(req, &io->old.in.os, p, -1, STR_TERMINATE);
p += req_pull_string(req, &io->old.in.lanman, p, -1, STR_TERMINATE);
/* call the generic handler */
status = smbsrv_sesssetup_backend(req, &sess);
if (!NT_STATUS_IS_OK(status)) {
smbsrv_send_error(req, status);
return;
}
/* construct reply */
smbsrv_setup_reply(req, 3, 0);
SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
SSVAL(req->out.vwv, VWV(1), 0);
SSVAL(req->out.vwv, VWV(2), sess.old.out.action);
SSVAL(req->out.hdr, HDR_UID, sess.old.out.vuid);
smbsrv_chain_reply(req);
smbsrv_sesssetup_backend(req, io);
}
/****************************************************************************
reply to an NT1 style session setup command
****************************************************************************/
static void reply_sesssetup_nt1(struct smbsrv_request *req)
{
NTSTATUS status;
union smb_sesssetup sess;
uint8_t *p;
uint16_t passlen1, passlen2;
union smb_sesssetup *io;
sess.nt1.level = RAW_SESSSETUP_NT1;
SMBSRV_TALLOC_IO_PTR(io, union smb_sesssetup);
io->nt1.level = RAW_SESSSETUP_NT1;
/* parse request */
sess.nt1.in.bufsize = SVAL(req->in.vwv, VWV(2));
sess.nt1.in.mpx_max = SVAL(req->in.vwv, VWV(3));
sess.nt1.in.vc_num = SVAL(req->in.vwv, VWV(4));
sess.nt1.in.sesskey = IVAL(req->in.vwv, VWV(5));
passlen1 = SVAL(req->in.vwv, VWV(7));
passlen2 = SVAL(req->in.vwv, VWV(8));
sess.nt1.in.capabilities = IVAL(req->in.vwv, VWV(11));
io->nt1.in.bufsize = SVAL(req->in.vwv, VWV(2));
io->nt1.in.mpx_max = SVAL(req->in.vwv, VWV(3));
io->nt1.in.vc_num = SVAL(req->in.vwv, VWV(4));
io->nt1.in.sesskey = IVAL(req->in.vwv, VWV(5));
passlen1 = SVAL(req->in.vwv, VWV(7));
passlen2 = SVAL(req->in.vwv, VWV(8));
io->nt1.in.capabilities = IVAL(req->in.vwv, VWV(11));
/* check the request isn't malformed */
if (req_data_oob(req, req->in.data, passlen1) ||
@ -1864,44 +1929,24 @@ static void reply_sesssetup_nt1(struct smbsrv_request *req)
}
p = req->in.data;
if (!req_pull_blob(req, p, passlen1, &sess.nt1.in.password1)) {
if (!req_pull_blob(req, p, passlen1, &io->nt1.in.password1)) {
smbsrv_send_error(req, NT_STATUS_FOOBAR);
return;
}
p += passlen1;
if (!req_pull_blob(req, p, passlen2, &sess.nt1.in.password2)) {
if (!req_pull_blob(req, p, passlen2, &io->nt1.in.password2)) {
smbsrv_send_error(req, NT_STATUS_FOOBAR);
return;
}
p += passlen2;
p += req_pull_string(req, &sess.nt1.in.user, p, -1, STR_TERMINATE);
p += req_pull_string(req, &sess.nt1.in.domain, p, -1, STR_TERMINATE);
p += req_pull_string(req, &sess.nt1.in.os, p, -1, STR_TERMINATE);
p += req_pull_string(req, &sess.nt1.in.lanman, p, -1, STR_TERMINATE);
p += req_pull_string(req, &io->nt1.in.user, p, -1, STR_TERMINATE);
p += req_pull_string(req, &io->nt1.in.domain, p, -1, STR_TERMINATE);
p += req_pull_string(req, &io->nt1.in.os, p, -1, STR_TERMINATE);
p += req_pull_string(req, &io->nt1.in.lanman, p, -1, STR_TERMINATE);
/* call the generic handler */
status = smbsrv_sesssetup_backend(req, &sess);
if (!NT_STATUS_IS_OK(status)) {
smbsrv_send_error(req, status);
return;
}
/* construct reply */
smbsrv_setup_reply(req, 3, 0);
SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
SSVAL(req->out.vwv, VWV(1), 0);
SSVAL(req->out.vwv, VWV(2), sess.nt1.out.action);
SSVAL(req->out.hdr, HDR_UID, sess.nt1.out.vuid);
req_push_str(req, NULL, sess.nt1.out.os, -1, STR_TERMINATE);
req_push_str(req, NULL, sess.nt1.out.lanman, -1, STR_TERMINATE);
req_push_str(req, NULL, sess.nt1.out.domain, -1, STR_TERMINATE);
smbsrv_chain_reply(req);
smbsrv_sesssetup_backend(req, io);
}
@ -1910,61 +1955,35 @@ reply to an SPNEGO style session setup command
****************************************************************************/
static void reply_sesssetup_spnego(struct smbsrv_request *req)
{
NTSTATUS status;
union smb_sesssetup sess;
uint8_t *p;
uint16_t blob_len;
union smb_sesssetup *io;
sess.spnego.level = RAW_SESSSETUP_SPNEGO;
SMBSRV_TALLOC_IO_PTR(io, union smb_sesssetup);
io->spnego.level = RAW_SESSSETUP_SPNEGO;
/* parse request */
sess.spnego.in.bufsize = SVAL(req->in.vwv, VWV(2));
sess.spnego.in.mpx_max = SVAL(req->in.vwv, VWV(3));
sess.spnego.in.vc_num = SVAL(req->in.vwv, VWV(4));
sess.spnego.in.sesskey = IVAL(req->in.vwv, VWV(5));
blob_len = SVAL(req->in.vwv, VWV(7));
sess.spnego.in.capabilities = IVAL(req->in.vwv, VWV(10));
io->spnego.in.bufsize = SVAL(req->in.vwv, VWV(2));
io->spnego.in.mpx_max = SVAL(req->in.vwv, VWV(3));
io->spnego.in.vc_num = SVAL(req->in.vwv, VWV(4));
io->spnego.in.sesskey = IVAL(req->in.vwv, VWV(5));
blob_len = SVAL(req->in.vwv, VWV(7));
io->spnego.in.capabilities = IVAL(req->in.vwv, VWV(10));
p = req->in.data;
if (!req_pull_blob(req, p, blob_len, &sess.spnego.in.secblob)) {
if (!req_pull_blob(req, p, blob_len, &io->spnego.in.secblob)) {
smbsrv_send_error(req, NT_STATUS_FOOBAR);
return;
}
p += blob_len;
p += req_pull_string(req, &sess.spnego.in.os, p, -1, STR_TERMINATE);
p += req_pull_string(req, &sess.spnego.in.lanman, p, -1, STR_TERMINATE);
p += req_pull_string(req, &sess.spnego.in.workgroup, p, -1, STR_TERMINATE);
p += req_pull_string(req, &io->spnego.in.os, p, -1, STR_TERMINATE);
p += req_pull_string(req, &io->spnego.in.lanman, p, -1, STR_TERMINATE);
p += req_pull_string(req, &io->spnego.in.workgroup, p, -1, STR_TERMINATE);
/* call the generic handler */
status = smbsrv_sesssetup_backend(req, &sess);
if (!NT_STATUS_IS_OK(status) &&
!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
smbsrv_send_error(req, status);
return;
}
/* construct reply */
smbsrv_setup_reply(req, 4, sess.spnego.out.secblob.length);
if (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
smbsrv_setup_error(req, status);
}
SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
SSVAL(req->out.vwv, VWV(1), 0);
SSVAL(req->out.vwv, VWV(2), sess.spnego.out.action);
SSVAL(req->out.vwv, VWV(3), sess.spnego.out.secblob.length);
SSVAL(req->out.hdr, HDR_UID, sess.spnego.out.vuid);
memcpy(req->out.data, sess.spnego.out.secblob.data, sess.spnego.out.secblob.length);
req_push_str(req, NULL, sess.spnego.out.os, -1, STR_TERMINATE);
req_push_str(req, NULL, sess.spnego.out.lanman, -1, STR_TERMINATE);
req_push_str(req, NULL, sess.spnego.out.workgroup, -1, STR_TERMINATE);
smbsrv_chain_reply(req);
smbsrv_sesssetup_backend(req, io);
}

332
source/smb_server/smb/sesssetup.c
View File

@ -41,23 +41,72 @@ static void sesssetup_common_strings(struct smbsrv_request *req,
(*domain) = talloc_asprintf(req, "%s", lp_workgroup());
}
static void smbsrv_sesssetup_backend_send(struct smbsrv_request *req,
union smb_sesssetup *sess,
NTSTATUS status)
{
if (NT_STATUS_IS_OK(status)) {
req->smb_conn->negotiate.done_sesssetup = True;
}
smbsrv_reply_sesssetup_send(req, sess, status);
}
static void sesssetup_old_send(struct auth_check_password_request *areq,
void *private_data)
{
struct smbsrv_request *req = talloc_get_type(private_data, struct smbsrv_request);
union smb_sesssetup *sess = talloc_get_type(req->io_ptr, union smb_sesssetup);
struct auth_serversupplied_info *server_info = NULL;
struct auth_session_info *session_info;
struct smbsrv_session *smb_sess;
NTSTATUS status;
status = auth_check_password_recv(areq, req, &server_info);
if (!NT_STATUS_IS_OK(status)) goto failed;
/* This references server_info into session_info */
status = auth_generate_session_info(req, server_info, &session_info);
if (!NT_STATUS_IS_OK(status)) goto failed;
/* allocate a new session */
smb_sess = smbsrv_session_new(req->smb_conn, NULL);
if (!smb_sess) {
status = NT_STATUS_INSUFFICIENT_RESOURCES;
goto failed;
}
/* Ensure this is marked as a 'real' vuid, not one
* simply valid for the session setup leg */
status = smbsrv_session_sesssetup_finished(smb_sess, session_info);
if (!NT_STATUS_IS_OK(status)) goto failed;
/* To correctly process any AndX packet (like a tree connect)
* we need to fill in the session on the request here */
req->session = smb_sess;
sess->old.out.vuid = smb_sess->vuid;
failed:
status = auth_nt_status_squash(status);
smbsrv_sesssetup_backend_send(req, sess, status);
}
/*
handler for old style session setup
*/
static NTSTATUS sesssetup_old(struct smbsrv_request *req, union smb_sesssetup *sess)
static void sesssetup_old(struct smbsrv_request *req, union smb_sesssetup *sess)
{
NTSTATUS status;
struct auth_usersupplied_info *user_info = NULL;
struct auth_serversupplied_info *server_info = NULL;
struct auth_session_info *session_info;
struct smbsrv_session *smb_sess;
struct socket_address *remote_address;
const char *remote_machine = NULL;
sess->old.out.vuid = 0;
sess->old.out.action = 0;
sesssetup_common_strings(req,
&sess->old.out.os,
&sess->old.out.lanman,
&sess->old.out.domain);
if (!req->smb_conn->negotiate.done_sesssetup) {
req->smb_conn->negotiate.max_send = sess->old.in.bufsize;
}
@ -67,14 +116,14 @@ static NTSTATUS sesssetup_old(struct smbsrv_request *req, union smb_sesssetup *s
}
remote_address = socket_get_peer_addr(req->smb_conn->connection->socket, req);
NT_STATUS_HAVE_NO_MEMORY(remote_address);
if (!remote_address) goto nomem;
if (!remote_machine) {
remote_machine = remote_address->addr;
}
user_info = talloc(req, struct auth_usersupplied_info);
NT_STATUS_HAVE_NO_MEMORY(user_info);
if (!user_info) goto nomem;
user_info->mapped_state = False;
user_info->logon_parameters = 0;
@ -89,62 +138,93 @@ static NTSTATUS sesssetup_old(struct smbsrv_request *req, union smb_sesssetup *s
user_info->password.response.lanman.data = talloc_steal(user_info, sess->old.in.password.data);
user_info->password.response.nt = data_blob(NULL, 0);
status = auth_check_password(req->smb_conn->negotiate.auth_context,
req, user_info, &server_info);
if (!NT_STATUS_IS_OK(status)) {
return auth_nt_status_squash(status);
}
auth_check_password_send(req->smb_conn->negotiate.auth_context, user_info,
sesssetup_old_send, req);
return;
nomem:
smbsrv_sesssetup_backend_send(req, sess, NT_STATUS_NO_MEMORY);
}
static void sesssetup_nt1_send(struct auth_check_password_request *areq,
void *private_data)
{
struct smbsrv_request *req = talloc_get_type(private_data, struct smbsrv_request);
union smb_sesssetup *sess = talloc_get_type(req->io_ptr, union smb_sesssetup);
struct auth_serversupplied_info *server_info = NULL;
struct auth_session_info *session_info;
struct smbsrv_session *smb_sess;
NTSTATUS status;
status = auth_check_password_recv(areq, req, &server_info);
if (!NT_STATUS_IS_OK(status)) goto failed;
/* This references server_info into session_info */
status = auth_generate_session_info(req, server_info, &session_info);
if (!NT_STATUS_IS_OK(status)) {
return auth_nt_status_squash(status);
}
if (!NT_STATUS_IS_OK(status)) goto failed;
/* allocate a new session */
smb_sess = smbsrv_session_new(req->smb_conn, NULL);
if (!smb_sess) {
return NT_STATUS_ACCESS_DENIED;
status = NT_STATUS_INSUFFICIENT_RESOURCES;
goto failed;
}
/* Ensure this is marked as a 'real' vuid, not one
* simply valid for the session setup leg */
status = smbsrv_session_sesssetup_finished(smb_sess, session_info);
if (!NT_STATUS_IS_OK(status)) {
return auth_nt_status_squash(status);
}
if (!NT_STATUS_IS_OK(status)) goto failed;
/* To correctly process any AndX packet (like a tree connect)
* we need to fill in the session on the request here */
req->session = smb_sess;
sess->old.out.vuid = smb_sess->vuid;
sess->nt1.out.vuid = smb_sess->vuid;
sesssetup_common_strings(req,
&sess->old.out.os,
&sess->old.out.lanman,
&sess->old.out.domain);
if (!session_info->server_info->authenticated) {
/* don't try signing as anonymous */
goto done;
}
return NT_STATUS_OK;
if (!smbsrv_setup_signing(req->smb_conn, &session_info->session_key, &sess->nt1.in.password2)) {
/* Already signing, or disabled */
goto done;
}
/* Force check of the request packet, now we know the session key */
smbsrv_signing_check_incoming(req);
/* TODO: why don't we check the result here? */
/* Unfortunetly win2k3 as a client doesn't sign the request
* packet here, so we have to force signing to start again */
smbsrv_signing_restart(req->smb_conn, &session_info->session_key, &sess->nt1.in.password2);
done:
status = NT_STATUS_OK;
failed:
status = auth_nt_status_squash(status);
smbsrv_sesssetup_backend_send(req, sess, status);
}
/*
handler for NT1 style session setup
*/
static NTSTATUS sesssetup_nt1(struct smbsrv_request *req, union smb_sesssetup *sess)
static void sesssetup_nt1(struct smbsrv_request *req, union smb_sesssetup *sess)
{
NTSTATUS status;
struct auth_context *auth_context;
struct auth_usersupplied_info *user_info = NULL;
struct auth_serversupplied_info *server_info = NULL;
struct auth_session_info *session_info;
struct smbsrv_session *smb_sess;
struct socket_address *remote_address;
const char *remote_machine = NULL;
sess->nt1.out.vuid = 0;
sess->nt1.out.action = 0;
sesssetup_common_strings(req,
&sess->nt1.out.os,
&sess->nt1.out.lanman,
&sess->nt1.out.domain);
if (!req->smb_conn->negotiate.done_sesssetup) {
req->smb_conn->negotiate.max_send = sess->nt1.in.bufsize;
req->smb_conn->negotiate.client_caps = sess->nt1.in.capabilities;
@ -154,14 +234,15 @@ static NTSTATUS sesssetup_nt1(struct smbsrv_request *req, union smb_sesssetup *s
if (sess->nt1.in.user && *sess->nt1.in.user) {
/* We can't accept a normal login, because we
* don't have a challenge */
return NT_STATUS_LOGON_FAILURE;
status = NT_STATUS_LOGON_FAILURE;
goto failed;
}
/* TODO: should we use just "anonymous" here? */
status = auth_context_create(req, lp_auth_methods(),
&auth_context,
req->smb_conn->connection->event.ctx);
NT_STATUS_NOT_OK_RETURN(status);
if (!NT_STATUS_IS_OK(status)) goto failed;
} else {
auth_context = req->smb_conn->negotiate.auth_context;
}
@ -171,14 +252,14 @@ static NTSTATUS sesssetup_nt1(struct smbsrv_request *req, union smb_sesssetup *s
}
remote_address = socket_get_peer_addr(req->smb_conn->connection->socket, req);
NT_STATUS_HAVE_NO_MEMORY(remote_address);
if (!remote_address) goto nomem;
if (!remote_machine) {
remote_machine = remote_address->addr;
}
user_info = talloc(req, struct auth_usersupplied_info);
NT_STATUS_HAVE_NO_MEMORY(user_info);
if (!user_info) goto nomem;
user_info->mapped_state = False;
user_info->logon_parameters = 0;
@ -194,72 +275,77 @@ static NTSTATUS sesssetup_nt1(struct smbsrv_request *req, union smb_sesssetup *s
user_info->password.response.nt = sess->nt1.in.password2;
user_info->password.response.nt.data = talloc_steal(user_info, sess->nt1.in.password2.data);
status = auth_check_password(auth_context, req, user_info, &server_info);
if (!NT_STATUS_IS_OK(status)) {
return auth_nt_status_squash(status);
auth_check_password_send(auth_context, user_info,
sesssetup_nt1_send, req);
return;
nomem:
status = NT_STATUS_NO_MEMORY;
failed:
status = auth_nt_status_squash(status);
smbsrv_sesssetup_backend_send(req, sess, status);
}
struct sesssetup_spnego_state {
struct smbsrv_request *req;
union smb_sesssetup *sess;
struct smbsrv_session *smb_sess;
};
static void sesssetup_spnego_send(struct gensec_update_request *greq, void *private_data)
{
struct sesssetup_spnego_state *s = talloc_get_type(private_data,
struct sesssetup_spnego_state);
struct smbsrv_request *req = s->req;
union smb_sesssetup *sess = s->sess;
struct smbsrv_session *smb_sess = s->smb_sess;
struct auth_session_info *session_info = NULL;
NTSTATUS status;
NTSTATUS skey_status;
DATA_BLOB session_key;
status = gensec_update_recv(greq, req, &sess->spnego.out.secblob);
if (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
goto done;
} else if (!NT_STATUS_IS_OK(status)) {
goto failed;
}
/* This references server_info into session_info */
status = auth_generate_session_info(req, server_info, &session_info);
if (!NT_STATUS_IS_OK(status)) {
return auth_nt_status_squash(status);
}
status = gensec_session_info(smb_sess->gensec_ctx, &session_info);
if (!NT_STATUS_IS_OK(status)) goto failed;
/* allocate a new session */
smb_sess = smbsrv_session_new(req->smb_conn, NULL);
if (!smb_sess) {
return NT_STATUS_ACCESS_DENIED;
skey_status = gensec_session_key(smb_sess->gensec_ctx, &session_key);
if (NT_STATUS_IS_OK(skey_status) &&
session_info->server_info->authenticated &&
smbsrv_setup_signing(req->smb_conn, &session_key, NULL)) {
/* Force check of the request packet, now we know the session key */
smbsrv_signing_check_incoming(req);
smbsrv_signing_restart(req->smb_conn, &session_key, NULL);
}
/* Ensure this is marked as a 'real' vuid, not one
* simply valid for the session setup leg */
status = smbsrv_session_sesssetup_finished(smb_sess, session_info);
if (!NT_STATUS_IS_OK(status)) {
return auth_nt_status_squash(status);
}
if (!NT_STATUS_IS_OK(status)) goto failed;
/* To correctly process any AndX packet (like a tree connect)
* we need to fill in the session on the request here */
req->session = smb_sess;
sess->nt1.out.vuid = smb_sess->vuid;
sesssetup_common_strings(req,
&sess->nt1.out.os,
&sess->nt1.out.lanman,
&sess->nt1.out.domain);
if (!session_info->server_info->authenticated) {
return NT_STATUS_OK;
}
if (!smbsrv_setup_signing(req->smb_conn, &session_info->session_key, &sess->nt1.in.password2)) {
/* Already signing, or disabled */
return NT_STATUS_OK;
}
/* Force check of the request packet, now we know the session key */
smbsrv_signing_check_incoming(req);
/* TODO: why don't we check the result here? */
/* Unfortunetly win2k3 as a client doesn't sign the request
* packet here, so we have to force signing to start again */
smbsrv_signing_restart(req->smb_conn, &session_info->session_key, &sess->nt1.in.password2);
return NT_STATUS_OK;
done:
sess->spnego.out.vuid = smb_sess->vuid;
failed:
status = auth_nt_status_squash(status);
smbsrv_sesssetup_backend_send(req, sess, status);
}
/*
handler for SPNEGO style session setup
*/
static NTSTATUS sesssetup_spnego(struct smbsrv_request *req, union smb_sesssetup *sess)
static void sesssetup_spnego(struct smbsrv_request *req, union smb_sesssetup *sess)
{
NTSTATUS status;
NTSTATUS skey_status;
struct smbsrv_session *smb_sess = NULL;
struct auth_session_info *session_info = NULL;
DATA_BLOB session_key;
struct sesssetup_spnego_state *s = NULL;
uint16_t vuid;
sess->spnego.out.vuid = 0;
@ -286,7 +372,7 @@ static NTSTATUS sesssetup_spnego(struct smbsrv_request *req, union smb_sesssetup
req->smb_conn->connection->event.ctx);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("Failed to start GENSEC server code: %s\n", nt_errstr(status)));
return status;
goto failed;
}
gensec_set_credentials(gensec_ctx, req->smb_conn->negotiate.server_credentials);
@ -299,15 +385,20 @@ static NTSTATUS sesssetup_spnego(struct smbsrv_request *req, union smb_sesssetup
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("Failed to start GENSEC %s server code: %s\n",
gensec_get_name_by_oid(req->smb_conn->negotiate.oid), nt_errstr(status)));
return status;
goto failed;
}
/* allocate a new session */
smb_sess = smbsrv_session_new(req->smb_conn, gensec_ctx);
if (!smb_sess) {
status = NT_STATUS_INSUFFICIENT_RESOURCES;
goto failed;
}
}
if (!smb_sess) {
return NT_STATUS_ACCESS_DENIED;
status = NT_STATUS_ACCESS_DENIED;
goto failed;
}
if (!smb_sess->gensec_ctx) {
@ -316,71 +407,46 @@ static NTSTATUS sesssetup_spnego(struct smbsrv_request *req, union smb_sesssetup
goto failed;
}
status = gensec_update(smb_sess->gensec_ctx, req, sess->spnego.in.secblob, &sess->spnego.out.secblob);
if (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
sess->spnego.out.vuid = smb_sess->vuid;
return status;
} else if (!NT_STATUS_IS_OK(status)) {
goto failed;
}
s = talloc(req, struct sesssetup_spnego_state);
if (!s) goto nomem;
s->req = req;
s->sess = sess;
s->smb_sess = smb_sess;
status = gensec_session_info(smb_sess->gensec_ctx, &session_info);
if (!NT_STATUS_IS_OK(status)) {
goto failed;
}
skey_status = gensec_session_key(smb_sess->gensec_ctx, &session_key);
if (NT_STATUS_IS_OK(skey_status) &&
session_info->server_info->authenticated &&
smbsrv_setup_signing(req->smb_conn, &session_key, NULL)) {
/* Force check of the request packet, now we know the session key */
smbsrv_signing_check_incoming(req);
smbsrv_signing_restart(req->smb_conn, &session_key, NULL);
}
/* Ensure this is marked as a 'real' vuid, not one
* simply valid for the session setup leg */
status = smbsrv_session_sesssetup_finished(smb_sess, session_info);
if (!NT_STATUS_IS_OK(status)) {
goto failed;
}
req->session = smb_sess;
sess->spnego.out.vuid = smb_sess->vuid;
return NT_STATUS_OK;
gensec_update_send(smb_sess->gensec_ctx, sess->spnego.in.secblob,
sesssetup_spnego_send, s);
return;
nomem:
status = NT_STATUS_NO_MEMORY;
failed:
talloc_free(smb_sess);
return auth_nt_status_squash(status);
status = auth_nt_status_squash(status);
smbsrv_sesssetup_backend_send(req, sess, status);
}
/*
backend for sessionsetup call - this takes all 3 variants of the call
*/
NTSTATUS smbsrv_sesssetup_backend(struct smbsrv_request *req,
union smb_sesssetup *sess)
void smbsrv_sesssetup_backend(struct smbsrv_request *req,
union smb_sesssetup *sess)
{
NTSTATUS status = NT_STATUS_INVALID_LEVEL;
switch (sess->old.level) {
case RAW_SESSSETUP_OLD:
status = sesssetup_old(req, sess);
break;
sesssetup_old(req, sess);
return;
case RAW_SESSSETUP_NT1:
status = sesssetup_nt1(req, sess);
break;
sesssetup_nt1(req, sess);
return;
case RAW_SESSSETUP_SPNEGO:
status = sesssetup_spnego(req, sess);
break;
sesssetup_spnego(req, sess);
return;
case RAW_SESSSETUP_SMB2:
status = NT_STATUS_INTERNAL_ERROR;
break;
}
if (NT_STATUS_IS_OK(status)) {
req->smb_conn->negotiate.done_sesssetup = True;
}
return status;
smbsrv_sesssetup_backend_send(req, sess, NT_STATUS_INVALID_LEVEL);
}