diff options
Diffstat (limited to '')
| -rw-r--r-- | source3/rpc_client/cli_mdssvc.c | 1214 |
1 files changed, 1214 insertions, 0 deletions
diff --git a/source3/rpc_client/cli_mdssvc.c b/source3/rpc_client/cli_mdssvc.c new file mode 100644 index 0000000..93e032f --- /dev/null +++ b/source3/rpc_client/cli_mdssvc.c @@ -0,0 +1,1214 @@ +/* + Unix SMB/CIFS implementation. + Main metadata server / Spotlight client functions + + Copyright (C) Ralph Boehme 2019 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "includes.h" +#include "rpc_client.h" +#include "../librpc/gen_ndr/ndr_mdssvc_c.h" +#include "lib/util/tevent_ntstatus.h" +#include "rpc_server/mdssvc/dalloc.h" +#include "rpc_server/mdssvc/marshalling.h" +#include "cli_mdssvc.h" +#include "cli_mdssvc_private.h" +#include "cli_mdssvc_util.h" + +struct mdsctx_id mdscli_new_ctx_id(struct mdscli_ctx *mdscli_ctx) +{ + mdscli_ctx->ctx_id.id++; + return mdscli_ctx->ctx_id; +} + +char *mdscli_get_basepath(TALLOC_CTX *mem_ctx, + struct mdscli_ctx *mdscli_ctx) +{ + return talloc_strdup(mem_ctx, mdscli_ctx->mdscmd_open.share_path); +} + +struct mdscli_connect_state { + struct tevent_context *ev; + struct mdscli_ctx *mdscli_ctx; + struct mdssvc_blob response_blob; +}; + +static void mdscli_connect_open_done(struct tevent_req *subreq); +static void mdscli_connect_unknown1_done(struct tevent_req *subreq); +static void mdscli_connect_fetch_props_done(struct tevent_req *subreq); + +struct tevent_req *mdscli_connect_send(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct dcerpc_binding_handle *bh, + const char *share_name, + const char *mount_path) +{ + struct tevent_req *req = NULL; + struct mdscli_connect_state *state = NULL; + struct tevent_req *subreq = NULL; + struct mdscli_ctx *ctx = NULL; + + req = tevent_req_create(req, &state, struct mdscli_connect_state); + if (req == NULL) { + return NULL; + } + + ctx = talloc_zero(state, struct mdscli_ctx); + if (tevent_req_nomem(ctx, req)) { + return tevent_req_post(req, ev); + } + + *state = (struct mdscli_connect_state) { + .ev = ev, + .mdscli_ctx = ctx, + }; + + *ctx = (struct mdscli_ctx) { + .bh = bh, + .max_fragment_size = 64 * 1024, + /* + * The connection id is a per tcon value sent by the client, + * 0x6b000060 is a value used most of the times for the first + * tcon. + */ + .ctx_id.connection = UINT64_C(0x6b000060), + }; + + subreq = dcerpc_mdssvc_open_send(state, + state->ev, + ctx->bh, + &ctx->dev, + &ctx->mdscmd_open.unkn2, + &ctx->mdscmd_open.unkn3, + mount_path, + share_name, + ctx->mdscmd_open.share_path, + &ctx->ph); + if (tevent_req_nomem(subreq, req)) { + return tevent_req_post(req, state->ev); + } + tevent_req_set_callback(subreq, mdscli_connect_open_done, req); + ctx->async_pending++; + + return req; +} + +static void mdscli_connect_open_done(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct mdscli_connect_state *state = tevent_req_data( + req, struct mdscli_connect_state); + struct mdscli_ctx *mdscli_ctx = state->mdscli_ctx; + size_t share_path_len; + NTSTATUS status; + + status = dcerpc_mdssvc_open_recv(subreq, state); + TALLOC_FREE(subreq); + state->mdscli_ctx->async_pending--; + if (tevent_req_nterror(req, status)) { + return; + } + + share_path_len = strlen(mdscli_ctx->mdscmd_open.share_path); + if (share_path_len < 1 || share_path_len > UINT16_MAX) { + tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR); + return; + } + mdscli_ctx->mdscmd_open.share_path_len = share_path_len; + + if (mdscli_ctx->mdscmd_open.share_path[share_path_len-1] == '/') { + mdscli_ctx->mdscmd_open.share_path[share_path_len-1] = '\0'; + mdscli_ctx->mdscmd_open.share_path_len--; + } + + subreq = dcerpc_mdssvc_unknown1_send( + state, + state->ev, + mdscli_ctx->bh, + &mdscli_ctx->ph, + 0, + mdscli_ctx->dev, + mdscli_ctx->mdscmd_open.unkn2, + 0, + geteuid(), + getegid(), + &mdscli_ctx->mdscmd_unknown1.status, + &mdscli_ctx->flags, + &mdscli_ctx->mdscmd_unknown1.unkn7); + if (tevent_req_nomem(subreq, req)) { + return; + } + tevent_req_set_callback(subreq, mdscli_connect_unknown1_done, req); +} + +static void mdscli_connect_unknown1_done(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct mdscli_connect_state *state = tevent_req_data( + req, struct mdscli_connect_state); + struct mdscli_ctx *mdscli_ctx = state->mdscli_ctx; + struct mdssvc_blob request_blob; + NTSTATUS status; + + status = dcerpc_mdssvc_unknown1_recv(subreq, state); + TALLOC_FREE(subreq); + if (tevent_req_nterror(req, status)) { + return; + } + + status = mdscli_blob_fetch_props(state, + state->mdscli_ctx, + &request_blob); + if (tevent_req_nterror(req, status)) { + return; + } + + subreq = dcerpc_mdssvc_cmd_send(state, + state->ev, + mdscli_ctx->bh, + &mdscli_ctx->ph, + 0, + mdscli_ctx->dev, + mdscli_ctx->mdscmd_open.unkn2, + 0, + mdscli_ctx->flags, + request_blob, + 0, + mdscli_ctx->max_fragment_size, + 1, + mdscli_ctx->max_fragment_size, + 0, + 0, + &mdscli_ctx->mdscmd_cmd.fragment, + &state->response_blob, + &mdscli_ctx->mdscmd_cmd.unkn9); + if (tevent_req_nomem(subreq, req)) { + return; + } + tevent_req_set_callback(subreq, mdscli_connect_fetch_props_done, req); + mdscli_ctx->async_pending++; + return; +} + +static void mdscli_connect_fetch_props_done(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct mdscli_connect_state *state = tevent_req_data( + req, struct mdscli_connect_state); + struct mdscli_ctx *mdscli_ctx = state->mdscli_ctx; + DALLOC_CTX *d = NULL; + sl_array_t *path_scope_array = NULL; + char *path_scope = NULL; + NTSTATUS status; + bool ok; + + status = dcerpc_mdssvc_cmd_recv(subreq, state); + TALLOC_FREE(subreq); + state->mdscli_ctx->async_pending--; + if (tevent_req_nterror(req, status)) { + return; + } + + d = dalloc_new(state); + if (tevent_req_nomem(d, req)) { + return; + } + + ok = sl_unpack(d, + (char *)state->response_blob.spotlight_blob, + state->response_blob.length); + if (!ok) { + tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR); + return; + } + + path_scope_array = dalloc_value_for_key(d, + "DALLOC_CTX", 0, + "kMDSStorePathScopes", + "sl_array_t"); + if (path_scope_array == NULL) { + DBG_ERR("Missing kMDSStorePathScopes\n"); + tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR); + return; + } + + path_scope = dalloc_get(path_scope_array, "char *", 0); + if (path_scope == NULL) { + DBG_ERR("Missing path in kMDSStorePathScopes\n"); + tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR); + return; + } + + mdscli_ctx->path_scope_len = strlen(path_scope); + if (mdscli_ctx->path_scope_len < 1 || + mdscli_ctx->path_scope_len > UINT16_MAX) + { + DBG_ERR("Bad path_scope: %s\n", path_scope); + tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR); + return; + } + mdscli_ctx->path_scope = talloc_strdup(mdscli_ctx, path_scope); + if (tevent_req_nomem(mdscli_ctx->path_scope, req)) { + return; + } + + if (mdscli_ctx->path_scope[mdscli_ctx->path_scope_len-1] == '/') { + mdscli_ctx->path_scope[mdscli_ctx->path_scope_len-1] = '\0'; + mdscli_ctx->path_scope_len--; + } + + tevent_req_done(req); +} + +NTSTATUS mdscli_connect_recv(struct tevent_req *req, + TALLOC_CTX *mem_ctx, + struct mdscli_ctx **mdscli_ctx) +{ + struct mdscli_connect_state *state = tevent_req_data( + req, struct mdscli_connect_state); + NTSTATUS status; + + if (tevent_req_is_nterror(req, &status)) { + tevent_req_received(req); + return status; + } + + *mdscli_ctx = talloc_move(mem_ctx, &state->mdscli_ctx); + tevent_req_received(req); + return NT_STATUS_OK; +} + +NTSTATUS mdscli_connect(TALLOC_CTX *mem_ctx, + struct dcerpc_binding_handle *bh, + const char *share_name, + const char *mount_path, + struct mdscli_ctx **mdscli_ctx) +{ + TALLOC_CTX *frame = talloc_stackframe(); + struct tevent_req *req = NULL; + struct tevent_context *ev = NULL; + NTSTATUS status = NT_STATUS_NO_MEMORY; + + ev = samba_tevent_context_init(frame); + if (ev == NULL) { + goto fail; + } + + req = mdscli_connect_send(frame, + ev, + bh, + share_name, + mount_path); + if (req == NULL) { + goto fail; + } + if (!tevent_req_poll_ntstatus(req, ev, &status)) { + goto fail; + } + + status = mdscli_connect_recv(req, mem_ctx, mdscli_ctx); +fail: + TALLOC_FREE(frame); + return status; +} + +struct mdscli_search_state { + struct mdscli_search_ctx *search; + struct mdssvc_blob request_blob; + struct mdssvc_blob response_blob; +}; + +static void mdscli_search_cmd_done(struct tevent_req *subreq); + +struct tevent_req *mdscli_search_send(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct mdscli_ctx *mdscli_ctx, + const char *mds_query, + const char *path_scope_in, + bool live) +{ + struct tevent_req *req = NULL; + struct mdscli_search_state *state = NULL; + struct tevent_req *subreq = NULL; + struct mdscli_search_ctx *search = NULL; + char *path_scope = NULL; + NTSTATUS status; + + req = tevent_req_create(req, &state, struct mdscli_search_state); + if (req == NULL) { + return NULL; + } + + search = talloc_zero(state, struct mdscli_search_ctx); + if (tevent_req_nomem(search, req)) { + return tevent_req_post(req, ev); + } + + if (path_scope_in[0] == '/') { + path_scope = talloc_strdup(search, path_scope_in); + } else { + path_scope = talloc_asprintf(search, + "%s/%s", + mdscli_ctx->mdscmd_open.share_path, + path_scope_in); + } + if (tevent_req_nomem(path_scope, req)) { + return tevent_req_post(req, ev); + } + + *search = (struct mdscli_search_ctx) { + .mdscli_ctx = mdscli_ctx, + .ctx_id = mdscli_new_ctx_id(mdscli_ctx), + .unique_id = generate_random_u64(), + .live = live, + .path_scope = path_scope, + .mds_query = talloc_strdup(search, mds_query), + }; + if (tevent_req_nomem(search->mds_query, req)) { + return tevent_req_post(req, ev); + } + + *state = (struct mdscli_search_state) { + .search = search, + }; + + status = mdscli_blob_search(state, + search, + &state->request_blob); + if (tevent_req_nterror(req, status)) { + return tevent_req_post(req, ev); + } + + subreq = dcerpc_mdssvc_cmd_send(state, + ev, + mdscli_ctx->bh, + &mdscli_ctx->ph, + 0, + mdscli_ctx->dev, + mdscli_ctx->mdscmd_open.unkn2, + 0, + mdscli_ctx->flags, + state->request_blob, + 0, + mdscli_ctx->max_fragment_size, + 1, + mdscli_ctx->max_fragment_size, + 0, + 0, + &mdscli_ctx->mdscmd_cmd.fragment, + &state->response_blob, + &mdscli_ctx->mdscmd_cmd.unkn9); + if (tevent_req_nomem(subreq, req)) { + return tevent_req_post(req, ev); + } + tevent_req_set_callback(subreq, mdscli_search_cmd_done, req); + mdscli_ctx->async_pending++; + return req; +} + +static void mdscli_search_cmd_done(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct mdscli_search_state *state = tevent_req_data( + req, struct mdscli_search_state); + DALLOC_CTX *d = NULL; + uint64_t *uint64p = NULL; + NTSTATUS status; + bool ok; + + status = dcerpc_mdssvc_cmd_recv(subreq, state); + TALLOC_FREE(subreq); + state->search->mdscli_ctx->async_pending--; + if (tevent_req_nterror(req, status)) { + return; + } + + d = dalloc_new(state); + if (tevent_req_nomem(d, req)) { + return; + } + + ok = sl_unpack(d, + (char *)state->response_blob.spotlight_blob, + state->response_blob.length); + if (!ok) { + tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR); + return; + } + + uint64p = dalloc_get(d, + "DALLOC_CTX", 0, + "uint64_t", 0); + if (uint64p == NULL) { + DBG_DEBUG("Unexpected mds response: %s", dalloc_dump(d, 0)); + tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR); + return; + } + + if (*uint64p != 0) { + DBG_DEBUG("Unexpected mds result: 0x%" PRIx64 "\n", *uint64p); + tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR); + return; + } + + tevent_req_done(req); + return; +} + +NTSTATUS mdscli_search_recv(struct tevent_req *req, + TALLOC_CTX *mem_ctx, + struct mdscli_search_ctx **search) +{ + struct mdscli_search_state *state = tevent_req_data( + req, struct mdscli_search_state); + NTSTATUS status; + + if (tevent_req_is_nterror(req, &status)) { + tevent_req_received(req); + return status; + } + + *search = talloc_move(mem_ctx, &state->search); + tevent_req_received(req); + return NT_STATUS_OK; +} + +NTSTATUS mdscli_search(TALLOC_CTX *mem_ctx, + struct mdscli_ctx *mdscli_ctx, + const char *mds_query, + const char *path_scope, + bool live, + struct mdscli_search_ctx **search) +{ + TALLOC_CTX *frame = talloc_stackframe(); + struct tevent_req *req = NULL; + struct tevent_context *ev = NULL; + NTSTATUS status = NT_STATUS_NO_MEMORY; + + if (mdscli_ctx->async_pending != 0) { + status = NT_STATUS_INVALID_PARAMETER; + goto fail; + } + + ev = samba_tevent_context_init(frame); + if (ev == NULL) { + goto fail; + } + + req = mdscli_search_send(frame, + ev, + mdscli_ctx, + mds_query, + path_scope, + live); + if (req == NULL) { + goto fail; + } + if (!tevent_req_poll_ntstatus(req, ev, &status)) { + goto fail; + } + + status = mdscli_search_recv(req, mem_ctx, search); +fail: + TALLOC_FREE(frame); + return status; +} + +struct mdscli_get_results_state { + struct tevent_context *ev; + struct mdscli_search_ctx *search; + struct mdssvc_blob request_blob; + struct mdssvc_blob response_fragment; + DATA_BLOB response_data; + uint64_t *cnids; + uint32_t fragment; +}; + +static void mdscli_get_results_cmd_done(struct tevent_req *subreq); + +struct tevent_req *mdscli_get_results_send( + TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct mdscli_search_ctx *search) +{ + struct tevent_req *req = NULL; + struct mdscli_get_results_state *state = NULL; + struct tevent_req *subreq = NULL; + struct mdscli_ctx *mdscli_ctx = search->mdscli_ctx; + NTSTATUS status; + + req = tevent_req_create(req, &state, struct mdscli_get_results_state); + if (req == NULL) { + return NULL; + } + + *state = (struct mdscli_get_results_state) { + .ev = ev, + .search = search, + }; + + status = mdscli_blob_get_results(state, + search, + &state->request_blob); + if (tevent_req_nterror(req, status)) { + return tevent_req_post(req, ev); + } + + subreq = dcerpc_mdssvc_cmd_send(state, + ev, + mdscli_ctx->bh, + &mdscli_ctx->ph, + 0, + mdscli_ctx->dev, + mdscli_ctx->mdscmd_open.unkn2, + 0, + mdscli_ctx->flags, + state->request_blob, + 0, + mdscli_ctx->max_fragment_size, + 1, + mdscli_ctx->max_fragment_size, + 0, + 0, + &state->fragment, + &state->response_fragment, + &mdscli_ctx->mdscmd_cmd.unkn9); + if (tevent_req_nomem(subreq, req)) { + return tevent_req_post(req, ev); + } + tevent_req_set_callback(subreq, mdscli_get_results_cmd_done, req); + mdscli_ctx->async_pending++; + return req; +} + +static void mdscli_get_results_cmd_done(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct mdscli_get_results_state *state = tevent_req_data( + req, struct mdscli_get_results_state); + struct mdscli_ctx *mdscli_ctx = state->search->mdscli_ctx; + size_t oldsize, newsize; + DALLOC_CTX *d = NULL; + uint64_t *uint64p = NULL; + bool search_in_progress = false; + sl_cnids_t *cnids = NULL; + size_t ncnids; + size_t i; + NTSTATUS status; + bool ok; + + status = dcerpc_mdssvc_cmd_recv(subreq, state); + TALLOC_FREE(subreq); + state->search->mdscli_ctx->async_pending--; + if (tevent_req_nterror(req, status)) { + return; + } + + oldsize = state->response_data.length; + newsize = oldsize + state->response_fragment.length; + if (newsize < oldsize) { + tevent_req_nterror(req, NT_STATUS_INTEGER_OVERFLOW); + return; + } + + ok = data_blob_realloc(state, &state->response_data, newsize); + if (!ok) { + tevent_req_nterror(req, NT_STATUS_NO_MEMORY); + return; + } + (void)memcpy(state->response_data.data + oldsize, + state->response_fragment.spotlight_blob, + state->response_fragment.length); + + TALLOC_FREE(state->response_fragment.spotlight_blob); + state->response_fragment.length = 0; + state->response_fragment.size = 0; + + if (state->fragment != 0) { + subreq = dcerpc_mdssvc_cmd_send( + state, + state->ev, + mdscli_ctx->bh, + &mdscli_ctx->ph, + 0, + mdscli_ctx->dev, + mdscli_ctx->mdscmd_open.unkn2, + 1, + mdscli_ctx->flags, + state->request_blob, + 0, + mdscli_ctx->max_fragment_size, + 1, + mdscli_ctx->max_fragment_size, + 0, + 0, + &state->fragment, + &state->response_fragment, + &mdscli_ctx->mdscmd_cmd.unkn9); + if (tevent_req_nomem(subreq, req)) { + tevent_req_post(req, state->ev); + return; + } + tevent_req_set_callback(subreq, + mdscli_get_results_cmd_done, + req); + mdscli_ctx->async_pending++; + return; + } + + d = dalloc_new(state); + if (tevent_req_nomem(d, req)) { + return; + } + + ok = sl_unpack(d, + (char *)state->response_data.data, + state->response_data.length); + if (!ok) { + tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR); + return; + } + + uint64p = dalloc_get(d, + "DALLOC_CTX", 0, + "uint64_t", 0); + if (uint64p == NULL) { + DBG_DEBUG("Unexpected mds response: %s", dalloc_dump(d, 0)); + tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR); + return; + } + + if (*uint64p == 35) { + DBG_DEBUG("Search in progress\n"); + search_in_progress = true; + } + + cnids = dalloc_get(d, "DALLOC_CTX", 0, "sl_cnids_t", 1); + if (cnids == NULL) { + DBG_DEBUG("cnids error: %s", dalloc_dump(d, 0)); + tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR); + return; + } + + ncnids = dalloc_size(cnids->ca_cnids); + if (ncnids == 0 && !search_in_progress) { + tevent_req_nterror(req, NT_STATUS_NO_MORE_MATCHES); + return; + } + + if (cnids->ca_unkn1 != 0xadd) { + /* + * Whatever 0xadd means... but it seems to be the standard value + * macOS mdssvc returns here. + */ + DBG_DEBUG("unexpected ca_unkn1: %s", dalloc_dump(d, 0)); + tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR); + return; + } + + if (cnids->ca_context != state->search->ctx_id.connection ) { + DBG_DEBUG("unexpected ca_context: %s", dalloc_dump(d, 0)); + tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR); + return; + } + + state->cnids = talloc_zero_array(state, uint64_t, ncnids); + if (tevent_req_nomem(state->cnids, req)) { + return; + } + + for (i = 0; i < ncnids; i++) { + uint64_t *cnid = NULL; + + cnid = dalloc_get(cnids->ca_cnids, "uint64_t", i); + if (cnid == NULL) { + DBG_DEBUG("cnids error: %s", dalloc_dump(d, 0)); + tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR); + return; + } + state->cnids[i] = *cnid; + } + + tevent_req_done(req); + return; +} + +NTSTATUS mdscli_get_results_recv(struct tevent_req *req, + TALLOC_CTX *mem_ctx, + uint64_t **cnids) +{ + struct mdscli_get_results_state *state = tevent_req_data( + req, struct mdscli_get_results_state); + NTSTATUS status; + + if (tevent_req_is_nterror(req, &status)) { + tevent_req_received(req); + return status; + } + + *cnids = talloc_move(mem_ctx, &state->cnids); + + tevent_req_received(req); + return NT_STATUS_OK; +} + +NTSTATUS mdscli_get_results(TALLOC_CTX *mem_ctx, + struct mdscli_search_ctx *search, + uint64_t **_cnids) +{ + TALLOC_CTX *frame = talloc_stackframe(); + struct tevent_req *req = NULL; + struct tevent_context *ev = NULL; + NTSTATUS status = NT_STATUS_NO_MEMORY; + + if (search->mdscli_ctx->async_pending != 0) { + status = NT_STATUS_INVALID_PARAMETER; + goto fail; + } + + ev = samba_tevent_context_init(frame); + if (ev == NULL) { + goto fail; + } + + req = mdscli_get_results_send(frame, + ev, + search); + if (req == NULL) { + goto fail; + } + if (!tevent_req_poll_ntstatus(req, ev, &status)) { + goto fail; + } + + status = mdscli_get_results_recv(req, mem_ctx, _cnids); +fail: + TALLOC_FREE(frame); + return status; +} + +struct mdscli_get_path_state { + struct mdscli_ctx *mdscli_ctx; + struct mdssvc_blob request_blob; + struct mdssvc_blob response_blob; + char *path; +}; + +static void mdscli_get_path_done(struct tevent_req *subreq); + +struct tevent_req *mdscli_get_path_send(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct mdscli_ctx *mdscli_ctx, + uint64_t cnid) +{ + struct tevent_req *req = NULL; + struct mdscli_get_path_state *state = NULL; + struct tevent_req *subreq = NULL; + NTSTATUS status; + + req = tevent_req_create(req, &state, struct mdscli_get_path_state); + if (req == NULL) { + return NULL; + } + *state = (struct mdscli_get_path_state) { + .mdscli_ctx = mdscli_ctx, + }; + + status = mdscli_blob_get_path(state, + mdscli_ctx, + cnid, + &state->request_blob); + if (tevent_req_nterror(req, status)) { + return tevent_req_post(req, ev); + } + + subreq = dcerpc_mdssvc_cmd_send(state, + ev, + mdscli_ctx->bh, + &mdscli_ctx->ph, + 0, + mdscli_ctx->dev, + mdscli_ctx->mdscmd_open.unkn2, + 0, + mdscli_ctx->flags, + state->request_blob, + 0, + mdscli_ctx->max_fragment_size, + 1, + mdscli_ctx->max_fragment_size, + 0, + 0, + &mdscli_ctx->mdscmd_cmd.fragment, + &state->response_blob, + &mdscli_ctx->mdscmd_cmd.unkn9); + if (tevent_req_nomem(subreq, req)) { + return tevent_req_post(req, ev); + } + tevent_req_set_callback(subreq, mdscli_get_path_done, req); + mdscli_ctx->async_pending++; + return req; +} + +static void mdscli_get_path_done(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct mdscli_get_path_state *state = tevent_req_data( + req, struct mdscli_get_path_state); + DALLOC_CTX *d = NULL; + size_t pathlen; + size_t prefixlen; + char *path = NULL; + const char *p = NULL; + NTSTATUS status; + bool ok; + + status = dcerpc_mdssvc_cmd_recv(subreq, state); + TALLOC_FREE(subreq); + state->mdscli_ctx->async_pending--; + if (tevent_req_nterror(req, status)) { + return; + } + + d = dalloc_new(state); + if (tevent_req_nomem(d, req)) { + return; + } + + ok = sl_unpack(d, + (char *)state->response_blob.spotlight_blob, + state->response_blob.length); + if (!ok) { + tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR); + return; + } + + path = dalloc_get(d, + "DALLOC_CTX", 0, + "DALLOC_CTX", 2, + "DALLOC_CTX", 0, + "DALLOC_CTX", 1, + "char *", 0); + if (path == NULL) { + DBG_DEBUG("No path in mds response: %s", dalloc_dump(d, 0)); + tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR); + return; + } + + /* Path is prefixed by /PATHSCOPE/SHARENAME/, strip it */ + pathlen = strlen(path); + + /* + * path_scope_len and share_path_len are already checked to be smaller + * then UINT16_MAX so this can't overflow + */ + prefixlen = state->mdscli_ctx->path_scope_len + + state->mdscli_ctx->mdscmd_open.share_path_len; + + if (pathlen < prefixlen) { + DBG_DEBUG("Bad path: %s\n", path); + tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER); + return; + } + + p = path + prefixlen; + while (*p == '/') { + p++; + } + if (*p == '\0') { + DBG_DEBUG("Bad path: %s\n", path); + tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER); + return; + } + + state->path = talloc_strdup(state, p); + if (state->path == NULL) { + tevent_req_nterror(req, NT_STATUS_NO_MEMORY); + return; + } + DBG_DEBUG("path: %s\n", state->path); + + tevent_req_done(req); + return; +} + +NTSTATUS mdscli_get_path_recv(struct tevent_req *req, + TALLOC_CTX *mem_ctx, + char **path) +{ + struct mdscli_get_path_state *state = tevent_req_data( + req, struct mdscli_get_path_state); + NTSTATUS status; + + if (tevent_req_is_nterror(req, &status)) { + tevent_req_received(req); + return status; + } + + *path = talloc_move(mem_ctx, &state->path); + tevent_req_received(req); + return NT_STATUS_OK; +} + +NTSTATUS mdscli_get_path(TALLOC_CTX *mem_ctx, + struct mdscli_ctx *mdscli_ctx, + uint64_t cnid, + char **path) +{ + TALLOC_CTX *frame = talloc_stackframe(); + struct tevent_req *req = NULL; + struct tevent_context *ev = NULL; + NTSTATUS status = NT_STATUS_NO_MEMORY; + + if (mdscli_ctx->async_pending != 0) { + status = NT_STATUS_INVALID_PARAMETER; + goto fail; + } + + ev = samba_tevent_context_init(frame); + if (ev == NULL) { + goto fail; + } + + req = mdscli_get_path_send(frame, ev, mdscli_ctx, cnid); + if (req == NULL) { + goto fail; + } + if (!tevent_req_poll_ntstatus(req, ev, &status)) { + goto fail; + } + + status = mdscli_get_path_recv(req, mem_ctx, path); +fail: + TALLOC_FREE(frame); + return status; +} + +struct mdscli_close_search_state { + struct mdscli_search_ctx *search; + struct mdssvc_blob request_blob; + struct mdssvc_blob response_blob; +}; + +static void mdscli_close_search_done(struct tevent_req *subreq); + +struct tevent_req *mdscli_close_search_send(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct mdscli_search_ctx **search) +{ + struct mdscli_ctx *mdscli_ctx = NULL; + struct tevent_req *req = NULL; + struct mdscli_close_search_state *state = NULL; + struct tevent_req *subreq = NULL; + NTSTATUS status; + + req = tevent_req_create(req, &state, struct mdscli_close_search_state); + if (req == NULL) { + return NULL; + } + *state = (struct mdscli_close_search_state) { + .search = talloc_move(state, search), + }; + mdscli_ctx = state->search->mdscli_ctx; + + status = mdscli_blob_close_search(state, + state->search, + &state->request_blob); + if (tevent_req_nterror(req, status)) { + return tevent_req_post(req, ev); + } + + subreq = dcerpc_mdssvc_cmd_send(state, + ev, + mdscli_ctx->bh, + &mdscli_ctx->ph, + 0, + mdscli_ctx->dev, + mdscli_ctx->mdscmd_open.unkn2, + 0, + mdscli_ctx->flags, + state->request_blob, + 0, + mdscli_ctx->max_fragment_size, + 1, + mdscli_ctx->max_fragment_size, + 0, + 0, + &mdscli_ctx->mdscmd_cmd.fragment, + &state->response_blob, + &mdscli_ctx->mdscmd_cmd.unkn9); + if (tevent_req_nomem(subreq, req)) { + return tevent_req_post(req, ev); + } + tevent_req_set_callback(subreq, mdscli_close_search_done, req); + mdscli_ctx->async_pending++; + return req; +} + +static void mdscli_close_search_done(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct mdscli_close_search_state *state = tevent_req_data( + req, struct mdscli_close_search_state); + NTSTATUS status; + + status = dcerpc_mdssvc_cmd_recv(subreq, state); + TALLOC_FREE(subreq); + state->search->mdscli_ctx->async_pending--; + if (tevent_req_nterror(req, status)) { + return; + } + + tevent_req_done(req); + return; +} + +NTSTATUS mdscli_close_search_recv(struct tevent_req *req) +{ + return tevent_req_simple_recv_ntstatus(req); +} + +NTSTATUS mdscli_close_search(struct mdscli_search_ctx **search) +{ + TALLOC_CTX *frame = talloc_stackframe(); + struct tevent_req *req = NULL; + struct tevent_context *ev = NULL; + NTSTATUS status = NT_STATUS_NO_MEMORY; + + if ((*search)->mdscli_ctx->async_pending != 0) { + status = NT_STATUS_INVALID_PARAMETER; + goto fail; + } + + ev = samba_tevent_context_init(frame); + if (ev == NULL) { + goto fail; + } + + req = mdscli_close_search_send(frame, ev, search); + if (req == NULL) { + goto fail; + } + if (!tevent_req_poll_ntstatus(req, ev, &status)) { + goto fail; + } + + status = mdscli_close_search_recv(req); +fail: + TALLOC_FREE(frame); + return status; +} + +struct mdscli_disconnect_state { + struct mdscli_ctx *mdscli_ctx; +}; + +static void mdscli_disconnect_done(struct tevent_req *subreq); + +struct tevent_req *mdscli_disconnect_send(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct mdscli_ctx *mdscli_ctx) +{ + struct tevent_req *req = NULL; + struct mdscli_disconnect_state *state = NULL; + struct tevent_req *subreq = NULL; + + req = tevent_req_create(req, &state, struct mdscli_disconnect_state); + if (req == NULL) { + return NULL; + } + *state = (struct mdscli_disconnect_state) { + .mdscli_ctx = mdscli_ctx, + }; + + subreq = dcerpc_mdssvc_close_send(state, + ev, + mdscli_ctx->bh, + &mdscli_ctx->ph, + 0, + mdscli_ctx->dev, + mdscli_ctx->mdscmd_open.unkn2, + 0, + &mdscli_ctx->ph, + &mdscli_ctx->mdscmd_close.status); + if (tevent_req_nomem(subreq, req)) { + return tevent_req_post(req, ev); + } + tevent_req_set_callback(subreq, mdscli_disconnect_done, req); + mdscli_ctx->async_pending++; + return req; +} + +static void mdscli_disconnect_done(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct mdscli_disconnect_state *state = tevent_req_data( + req, struct mdscli_disconnect_state); + NTSTATUS status; + + status = dcerpc_mdssvc_close_recv(subreq, state); + TALLOC_FREE(subreq); + state->mdscli_ctx->async_pending--; + if (tevent_req_nterror(req, status)) { + return; + } + + tevent_req_done(req); + return; +} + +NTSTATUS mdscli_disconnect_recv(struct tevent_req *req) +{ + return tevent_req_simple_recv_ntstatus(req); +} + +NTSTATUS mdscli_disconnect(struct mdscli_ctx *mdscli_ctx) +{ + TALLOC_CTX *frame = talloc_stackframe(); + struct tevent_req *req = NULL; + struct tevent_context *ev = NULL; + NTSTATUS status = NT_STATUS_NO_MEMORY; + + if (mdscli_ctx->async_pending != 0) { + status = NT_STATUS_INVALID_PARAMETER; + goto fail; + } + + ev = samba_tevent_context_init(frame); + if (ev == NULL) { + goto fail; + } + + req = mdscli_disconnect_send(frame, ev, mdscli_ctx); + if (req == NULL) { + goto fail; + } + if (!tevent_req_poll_ntstatus(req, ev, &status)) { + goto fail; + } + + status = mdscli_disconnect_recv(req); +fail: + TALLOC_FREE(frame); + return status; +} |