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r17268: change the smb2 session setup to use the new gensec_update_send/recv() api

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metze
(This used to be commit 14ecc56343)
This commit is contained in:
Stefan Metzmacher 2006-07-27 10:03:54 +00:00 committed by Gerald (Jerry) Carter
parent 64d6abac74
commit 28b8ec0156
1 changed files with 125 additions and 95 deletions
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220
source4/smb_server/smb2/sesssetup.c
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@ -28,95 +28,6 @@
#include "smb_server/smb2/smb2_server.h" #include "smb_server/smb2/smb2_server.h"
#include "smbd/service_stream.h" #include "smbd/service_stream.h"
static NTSTATUS smb2srv_sesssetup_backend(struct smb2srv_request *req, union smb_sesssetup *io)
{
NTSTATUS status;
struct smbsrv_session *smb_sess = NULL;
struct auth_session_info *session_info = NULL;
uint64_t vuid;
io->smb2.out._pad = 0;
io->smb2.out.uid = 0;
io->smb2.out.secblob = data_blob(NULL, 0);
vuid = BVAL(req->in.hdr, SMB2_HDR_UID);
/*
* only when we got '0' we should allocate a new session
*/
if (vuid == 0) {
struct gensec_security *gensec_ctx;
status = gensec_server_start(req, &gensec_ctx,
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;
}
gensec_set_credentials(gensec_ctx, req->smb_conn->negotiate.server_credentials);
gensec_set_target_service(gensec_ctx, "cifs");
gensec_want_feature(gensec_ctx, GENSEC_FEATURE_SESSION_KEY);
status = gensec_start_mech_by_oid(gensec_ctx, GENSEC_OID_SPNEGO);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("Failed to start GENSEC SPNEGO server code: %s\n", nt_errstr(status)));
return status;
}
/* allocate a new session */
smb_sess = smbsrv_session_new(req->smb_conn, gensec_ctx);
NT_STATUS_HAVE_NO_MEMORY(smb_sess);
status = smbsrv_smb2_init_tcons(smb_sess);
if (!NT_STATUS_IS_OK(status)) {
goto failed;
}
} else {
/* lookup an existing session */
smb_sess = smbsrv_session_find_sesssetup(req->smb_conn, vuid);
}
if (!smb_sess) {
return NT_STATUS_USER_SESSION_DELETED;
}
if (!smb_sess->gensec_ctx) {
status = NT_STATUS_INTERNAL_ERROR;
DEBUG(1, ("Internal ERROR: no gensec_ctx on session: %s\n", nt_errstr(status)));
goto failed;
}
status = gensec_update(smb_sess->gensec_ctx, req, io->smb2.in.secblob, &io->smb2.out.secblob);
if (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
io->smb2.out.uid = smb_sess->vuid;
return status;
} else if (!NT_STATUS_IS_OK(status)) {
goto failed;
}
status = gensec_session_info(smb_sess->gensec_ctx, &session_info);
if (!NT_STATUS_IS_OK(status)) {
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;
}
req->session = smb_sess;
io->smb2.out.uid = smb_sess->vuid;
return status;
failed:
talloc_free(smb_sess);
return auth_nt_status_squash(status);
}
static void smb2srv_sesssetup_send(struct smb2srv_request *req, union smb_sesssetup *io) static void smb2srv_sesssetup_send(struct smb2srv_request *req, union smb_sesssetup *io)
{ {
uint16_t unknown1; uint16_t unknown1;
@ -141,6 +52,130 @@ static void smb2srv_sesssetup_send(struct smb2srv_request *req, union smb_sessse
smb2srv_send_reply(req); smb2srv_send_reply(req);
} }
struct smb2srv_sesssetup_callback_ctx {
struct smb2srv_request *req;
union smb_sesssetup *io;
struct smbsrv_session *smb_sess;
};
static void smb2srv_sesssetup_callback(struct gensec_update_request *greq, void *private_data)
{
struct smb2srv_sesssetup_callback_ctx *ctx = talloc_get_type(private_data,
struct smb2srv_sesssetup_callback_ctx);
struct smb2srv_request *req = ctx->req;
union smb_sesssetup *io = ctx->io;
struct smbsrv_session *smb_sess = ctx->smb_sess;;
struct auth_session_info *session_info = NULL;
NTSTATUS status;
status = gensec_update_recv(greq, req, &io->smb2.out.secblob);
if (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
goto done;
} else if (!NT_STATUS_IS_OK(status)) {
goto failed;
}
status = gensec_session_info(smb_sess->gensec_ctx, &session_info);
if (!NT_STATUS_IS_OK(status)) {
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;
}
req->session = smb_sess;
done:
io->smb2.out.uid = smb_sess->vuid;
failed:
req->status = auth_nt_status_squash(status);
smb2srv_sesssetup_send(req, io);
}
static void smb2srv_sesssetup_backend(struct smb2srv_request *req, union smb_sesssetup *io)
{
NTSTATUS status;
struct smb2srv_sesssetup_callback_ctx *callback_ctx;
struct smbsrv_session *smb_sess = NULL;
uint64_t vuid;
io->smb2.out._pad = 0;
io->smb2.out.uid = 0;
io->smb2.out.secblob = data_blob(NULL, 0);
vuid = BVAL(req->in.hdr, SMB2_HDR_UID);
/*
* only when we got '0' we should allocate a new session
*/
if (vuid == 0) {
struct gensec_security *gensec_ctx;
status = gensec_server_start(req, &gensec_ctx,
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)));
goto failed;
}
gensec_set_credentials(gensec_ctx, req->smb_conn->negotiate.server_credentials);
gensec_set_target_service(gensec_ctx, "cifs");
gensec_want_feature(gensec_ctx, GENSEC_FEATURE_SESSION_KEY);
status = gensec_start_mech_by_oid(gensec_ctx, GENSEC_OID_SPNEGO);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("Failed to start GENSEC SPNEGO server code: %s\n", nt_errstr(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;
}
status = smbsrv_smb2_init_tcons(smb_sess);
if (!NT_STATUS_IS_OK(status)) {
goto failed;
}
} else {
/* lookup an existing session */
smb_sess = smbsrv_session_find_sesssetup(req->smb_conn, vuid);
}
if (!smb_sess) {
status = NT_STATUS_USER_SESSION_DELETED;
goto failed;
}
if (!smb_sess->gensec_ctx) {
status = NT_STATUS_INTERNAL_ERROR;
DEBUG(1, ("Internal ERROR: no gensec_ctx on session: %s\n", nt_errstr(status)));
goto failed;
}
callback_ctx = talloc(req, struct smb2srv_sesssetup_callback_ctx);
if (!callback_ctx) goto nomem;
callback_ctx->req = req;
callback_ctx->io = io;
callback_ctx->smb_sess = smb_sess;
gensec_update_send(smb_sess->gensec_ctx, io->smb2.in.secblob,
smb2srv_sesssetup_callback, callback_ctx);
return;
nomem:
status = NT_STATUS_NO_MEMORY;
failed:
talloc_free(smb_sess);
req->status = auth_nt_status_squash(status);
smb2srv_sesssetup_send(req, io);
}
void smb2srv_sesssetup_recv(struct smb2srv_request *req) void smb2srv_sesssetup_recv(struct smb2srv_request *req)
{ {
union smb_sesssetup *io; union smb_sesssetup *io;
@ -155,12 +190,7 @@ void smb2srv_sesssetup_recv(struct smb2srv_request *req)
SMB2SRV_CHECK(smb2_pull_o16s16_blob(&req->in, io, req->in.body+0x0C, &io->smb2.in.secblob)); SMB2SRV_CHECK(smb2_pull_o16s16_blob(&req->in, io, req->in.body+0x0C, &io->smb2.in.secblob));
io->smb2.in.unknown4 = BVAL(req->in.body, 0x10); io->smb2.in.unknown4 = BVAL(req->in.body, 0x10);
req->status = smb2srv_sesssetup_backend(req, io); smb2srv_sesssetup_backend(req, io);
if (req->control_flags & SMB2SRV_REQ_CTRL_FLAG_NOT_REPLY) {
talloc_free(req);
return;
}
smb2srv_sesssetup_send(req, io);
} }
static NTSTATUS smb2srv_logoff_backend(struct smb2srv_request *req) static NTSTATUS smb2srv_logoff_backend(struct smb2srv_request *req)