diff options
Diffstat (limited to '')
| -rw-r--r-- | source4/libcli/smb_composite/appendacl.c | 313 |
1 files changed, 313 insertions, 0 deletions
diff --git a/source4/libcli/smb_composite/appendacl.c b/source4/libcli/smb_composite/appendacl.c new file mode 100644 index 0000000..faaabe0 --- /dev/null +++ b/source4/libcli/smb_composite/appendacl.c @@ -0,0 +1,313 @@ +#include "includes.h" +#include "libcli/raw/libcliraw.h" +#include "libcli/raw/raw_proto.h" +#include "libcli/composite/composite.h" +#include "libcli/security/security.h" +#include "libcli/smb_composite/smb_composite.h" + +/* the stages of this call */ +enum appendacl_stage {APPENDACL_OPENPATH, APPENDACL_GET, + APPENDACL_SET, APPENDACL_GETAGAIN, APPENDACL_CLOSEPATH}; + +static void appendacl_handler(struct smbcli_request *req); + +struct appendacl_state { + enum appendacl_stage stage; + struct smb_composite_appendacl *io; + + union smb_open *io_open; + union smb_setfileinfo *io_setfileinfo; + union smb_fileinfo *io_fileinfo; + + struct smbcli_request *req; +}; + + +static NTSTATUS appendacl_open(struct composite_context *c, + struct smb_composite_appendacl *io) +{ + struct appendacl_state *state = talloc_get_type(c->private_data, struct appendacl_state); + struct smbcli_tree *tree = state->req->tree; + NTSTATUS status; + + status = smb_raw_open_recv(state->req, c, state->io_open); + NT_STATUS_NOT_OK_RETURN(status); + + /* setup structures for getting fileinfo */ + state->io_fileinfo = talloc(c, union smb_fileinfo); + NT_STATUS_HAVE_NO_MEMORY(state->io_fileinfo); + + state->io_fileinfo->query_secdesc.level = RAW_FILEINFO_SEC_DESC; + state->io_fileinfo->query_secdesc.in.file.fnum = state->io_open->ntcreatex.out.file.fnum; + state->io_fileinfo->query_secdesc.in.secinfo_flags = SECINFO_DACL; + + state->req = smb_raw_fileinfo_send(tree, state->io_fileinfo); + NT_STATUS_HAVE_NO_MEMORY(state->req); + + /* set the handler */ + state->req->async.fn = appendacl_handler; + state->req->async.private_data = c; + state->stage = APPENDACL_GET; + + talloc_free (state->io_open); + + return NT_STATUS_OK; +} + +static NTSTATUS appendacl_get(struct composite_context *c, + struct smb_composite_appendacl *io) +{ + struct appendacl_state *state = talloc_get_type(c->private_data, struct appendacl_state); + struct smbcli_tree *tree = state->req->tree; + NTSTATUS status; + + status = smb_raw_fileinfo_recv(state->req, state->io_fileinfo, state->io_fileinfo); + NT_STATUS_NOT_OK_RETURN(status); + + /* setup structures for setting fileinfo */ + state->io_setfileinfo = talloc(c, union smb_setfileinfo); + NT_STATUS_HAVE_NO_MEMORY(state->io_setfileinfo); + + state->io_setfileinfo->set_secdesc.level = RAW_SFILEINFO_SEC_DESC; + state->io_setfileinfo->set_secdesc.in.file.fnum = state->io_fileinfo->query_secdesc.in.file.fnum; + + state->io_setfileinfo->set_secdesc.in.secinfo_flags = SECINFO_DACL; + state->io_setfileinfo->set_secdesc.in.sd = state->io_fileinfo->query_secdesc.out.sd; + talloc_steal(state->io_setfileinfo, state->io_setfileinfo->set_secdesc.in.sd); + + /* append all aces from io->in.sd->dacl to new security descriptor */ + if (io->in.sd->dacl != NULL) { + uint32_t i; + for (i = 0; i < io->in.sd->dacl->num_aces; i++) { + security_descriptor_dacl_add(state->io_setfileinfo->set_secdesc.in.sd, + &(io->in.sd->dacl->aces[i])); + } + } + + status = smb_raw_setfileinfo(tree, state->io_setfileinfo); + NT_STATUS_NOT_OK_RETURN(status); + + state->req = smb_raw_setfileinfo_send(tree, state->io_setfileinfo); + NT_STATUS_HAVE_NO_MEMORY(state->req); + + /* call handler when done setting new security descriptor on file */ + state->req->async.fn = appendacl_handler; + state->req->async.private_data = c; + state->stage = APPENDACL_SET; + + talloc_free (state->io_fileinfo); + + return NT_STATUS_OK; +} + +static NTSTATUS appendacl_set(struct composite_context *c, + struct smb_composite_appendacl *io) +{ + struct appendacl_state *state = talloc_get_type(c->private_data, struct appendacl_state); + struct smbcli_tree *tree = state->req->tree; + NTSTATUS status; + + status = smbcli_request_simple_recv(state->req); + NT_STATUS_NOT_OK_RETURN(status); + + /* setup structures for getting fileinfo */ + state->io_fileinfo = talloc(c, union smb_fileinfo); + NT_STATUS_HAVE_NO_MEMORY(state->io_fileinfo); + + + state->io_fileinfo->query_secdesc.level = RAW_FILEINFO_SEC_DESC; + state->io_fileinfo->query_secdesc.in.file.fnum = state->io_setfileinfo->set_secdesc.in.file.fnum; + state->io_fileinfo->query_secdesc.in.secinfo_flags = SECINFO_DACL; + + state->req = smb_raw_fileinfo_send(tree, state->io_fileinfo); + NT_STATUS_HAVE_NO_MEMORY(state->req); + + /* set the handler */ + state->req->async.fn = appendacl_handler; + state->req->async.private_data = c; + state->stage = APPENDACL_GETAGAIN; + + talloc_free (state->io_setfileinfo); + + return NT_STATUS_OK; +} + + +static NTSTATUS appendacl_getagain(struct composite_context *c, + struct smb_composite_appendacl *io) +{ + struct appendacl_state *state = talloc_get_type(c->private_data, struct appendacl_state); + struct smbcli_tree *tree = state->req->tree; + union smb_close *io_close; + NTSTATUS status; + + status = smb_raw_fileinfo_recv(state->req, c, state->io_fileinfo); + NT_STATUS_NOT_OK_RETURN(status); + + io->out.sd = state->io_fileinfo->query_secdesc.out.sd; + + /* setup structures for close */ + io_close = talloc(c, union smb_close); + NT_STATUS_HAVE_NO_MEMORY(io_close); + + io_close->close.level = RAW_CLOSE_CLOSE; + io_close->close.in.file.fnum = state->io_fileinfo->query_secdesc.in.file.fnum; + io_close->close.in.write_time = 0; + + state->req = smb_raw_close_send(tree, io_close); + NT_STATUS_HAVE_NO_MEMORY(state->req); + + /* call the handler */ + state->req->async.fn = appendacl_handler; + state->req->async.private_data = c; + state->stage = APPENDACL_CLOSEPATH; + + talloc_free (state->io_fileinfo); + + return NT_STATUS_OK; +} + + + +static NTSTATUS appendacl_close(struct composite_context *c, + struct smb_composite_appendacl *io) +{ + struct appendacl_state *state = talloc_get_type(c->private_data, struct appendacl_state); + NTSTATUS status; + + status = smbcli_request_simple_recv(state->req); + NT_STATUS_NOT_OK_RETURN(status); + + c->state = COMPOSITE_STATE_DONE; + + return NT_STATUS_OK; +} + +/* + handler for completion of a sub-request in appendacl +*/ +static void appendacl_handler(struct smbcli_request *req) +{ + struct composite_context *c = (struct composite_context *)req->async.private_data; + struct appendacl_state *state = talloc_get_type(c->private_data, struct appendacl_state); + + /* when this handler is called, the stage indicates what + call has just finished */ + switch (state->stage) { + case APPENDACL_OPENPATH: + c->status = appendacl_open(c, state->io); + break; + + case APPENDACL_GET: + c->status = appendacl_get(c, state->io); + break; + + case APPENDACL_SET: + c->status = appendacl_set(c, state->io); + break; + + case APPENDACL_GETAGAIN: + c->status = appendacl_getagain(c, state->io); + break; + + case APPENDACL_CLOSEPATH: + c->status = appendacl_close(c, state->io); + break; + } + + /* We should get here if c->state >= SMBCLI_REQUEST_DONE */ + if (!NT_STATUS_IS_OK(c->status)) { + c->state = COMPOSITE_STATE_ERROR; + } + + if (c->state >= COMPOSITE_STATE_DONE && + c->async.fn) { + c->async.fn(c); + } +} + + +/* + composite appendacl call - does an open followed by a number setfileinfo, + after that new acls are read with fileinfo, followed by a close +*/ +struct composite_context *smb_composite_appendacl_send(struct smbcli_tree *tree, + struct smb_composite_appendacl *io) +{ + struct composite_context *c; + struct appendacl_state *state; + + c = talloc_zero(tree, struct composite_context); + if (c == NULL) goto failed; + + state = talloc(c, struct appendacl_state); + if (state == NULL) goto failed; + + state->io = io; + + c->private_data = state; + c->state = COMPOSITE_STATE_IN_PROGRESS; + c->event_ctx = tree->session->transport->ev; + + /* setup structures for opening file */ + state->io_open = talloc_zero(c, union smb_open); + if (state->io_open == NULL) goto failed; + + state->io_open->ntcreatex.level = RAW_OPEN_NTCREATEX; + state->io_open->ntcreatex.in.root_fid.fnum = 0; + state->io_open->ntcreatex.in.flags = 0; + state->io_open->ntcreatex.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED; + state->io_open->ntcreatex.in.file_attr = FILE_ATTRIBUTE_NORMAL; + state->io_open->ntcreatex.in.share_access = NTCREATEX_SHARE_ACCESS_READ | NTCREATEX_SHARE_ACCESS_WRITE; + state->io_open->ntcreatex.in.open_disposition = NTCREATEX_DISP_OPEN; + state->io_open->ntcreatex.in.impersonation = NTCREATEX_IMPERSONATION_ANONYMOUS; + state->io_open->ntcreatex.in.security_flags = 0; + state->io_open->ntcreatex.in.fname = io->in.fname; + + /* send the open on its way */ + state->req = smb_raw_open_send(tree, state->io_open); + if (state->req == NULL) goto failed; + + /* setup the callback handler */ + state->req->async.fn = appendacl_handler; + state->req->async.private_data = c; + state->stage = APPENDACL_OPENPATH; + + return c; + +failed: + talloc_free(c); + return NULL; +} + + +/* + composite appendacl call - recv side +*/ +NTSTATUS smb_composite_appendacl_recv(struct composite_context *c, TALLOC_CTX *mem_ctx) +{ + NTSTATUS status; + + status = composite_wait(c); + + if (NT_STATUS_IS_OK(status)) { + struct appendacl_state *state = talloc_get_type(c->private_data, struct appendacl_state); + state->io->out.sd = security_descriptor_copy (mem_ctx, state->io->out.sd); + } + + talloc_free(c); + return status; +} + + +/* + composite appendacl call - sync interface +*/ +NTSTATUS smb_composite_appendacl(struct smbcli_tree *tree, + TALLOC_CTX *mem_ctx, + struct smb_composite_appendacl *io) +{ + struct composite_context *c = smb_composite_appendacl_send(tree, io); + return smb_composite_appendacl_recv(c, mem_ctx); +} + |