diff options
| -rw-r--r-- | source3/smbd/smb2_ioctl.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/source3/smbd/smb2_ioctl.c b/source3/smbd/smb2_ioctl.c index 40276c5772..48487428de 100644 --- a/source3/smbd/smb2_ioctl.c +++ b/source3/smbd/smb2_ioctl.c @@ -24,6 +24,7 @@ #include "../libcli/smb/smb_common.h" #include "../lib/util/tevent_ntstatus.h" #include "rpc_server/srv_pipe_hnd.h" +#include "include/ntioctl.h" static struct tevent_req *smbd_smb2_ioctl_send(TALLOC_CTX *mem_ctx, struct tevent_context *ev, @@ -378,6 +379,126 @@ static struct tevent_req *smbd_smb2_ioctl_send(TALLOC_CTX *mem_ctx, req); return req; + case 0x00144064: /* FSCTL_SRV_ENUMERATE_SNAPSHOTS */ + { + /* + * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots) + * and return their volume names. If max_data_count is 16, then it is just + * asking for the number of volumes and length of the combined names. + * + * pdata is the data allocated by our caller, but that uses + * total_data_count (which is 0 in our case) rather than max_data_count. + * Allocate the correct amount and return the pointer to let + * it be deallocated when we return. + */ + struct shadow_copy_data *shadow_data = NULL; + bool labels = False; + uint32_t labels_data_count = 0; + uint32_t data_count; + uint32_t i; + char *pdata; + NTSTATUS status; + + if (in_max_output < 16) { + DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: " + "in_max_output(%u) < 16 is invalid!\n", + in_max_output)); + tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER); + return tevent_req_post(req, ev); + } + + if (in_max_output > 16) { + labels = True; + } + + shadow_data = TALLOC_ZERO_P(talloc_tos(), + struct shadow_copy_data); + if (tevent_req_nomem(shadow_data, req)) { + DEBUG(0,("TALLOC_ZERO() failed!\n")); + return tevent_req_post(req, ev); + } + + /* + * Call the VFS routine to actually do the work. + */ + if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels) + != 0) { + if (errno == ENOSYS) { + DEBUG(5, ("FSCTL_GET_SHADOW_COPY_DATA: " + "connectpath %s, not supported.\n", + smbreq->conn->connectpath)); + status = NT_STATUS_NOT_SUPPORTED; + } else { + DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: " + "connectpath %s, failed.\n", + smbreq->conn->connectpath)); + status = map_nt_error_from_unix(errno); + } + TALLOC_FREE(shadow_data); + tevent_req_nterror(req, status); + return tevent_req_post(req, ev); + } + + labels_data_count = + (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL)) + + 2; + + if (labels) { + data_count = 12+labels_data_count+4; + } else { + data_count = 16; + } + + if (labels && (in_max_output < data_count)) { + DEBUG(0, ("FSCTL_GET_SHADOW_COPY_DATA: " + "in_max_output(%u) too small (%u) bytes " + "needed!\n", in_max_output, data_count)); + TALLOC_FREE(shadow_data); + tevent_req_nterror(req, NT_STATUS_BUFFER_TOO_SMALL); + return tevent_req_post(req, ev); + } + + state->out_output = data_blob_talloc(state, NULL, data_count); + if (tevent_req_nomem(state->out_output.data, req)) { + return tevent_req_post(req, ev); + } + + pdata = (char *)state->out_output.data; + + /* num_volumes 4 bytes */ + SIVAL(pdata, 0, shadow_data->num_volumes); + + if (labels) { + /* num_labels 4 bytes */ + SIVAL(pdata, 4, shadow_data->num_volumes); + } + + /* needed_data_count 4 bytes */ + SIVAL(pdata, 8, labels_data_count+4); + + pdata += 12; + + DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for " + "path[%s].\n", + shadow_data->num_volumes, fsp_str_dbg(fsp))); + if (labels && shadow_data->labels) { + for (i=0; i<shadow_data->num_volumes; i++) { + srvstr_push(pdata, smbreq->flags2, + pdata, shadow_data->labels[i], + 2*sizeof(SHADOW_COPY_LABEL), + STR_UNICODE|STR_TERMINATE); + pdata += 2*sizeof(SHADOW_COPY_LABEL); + DEBUGADD(10, ("Label[%u]: '%s'\n", i, + shadow_data->labels[i])); + } + } + + TALLOC_FREE(shadow_data); + + tevent_req_done(req); + return tevent_req_post(req, ev); + } + default: if (IS_IPC(smbreq->conn)) { tevent_req_nterror(req, NT_STATUS_FS_DRIVER_REQUIRED); |