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authorJeremy Allison <jra@samba.org>2011-12-03 21:31:32 -0800
committerJeremy Allison <jra@samba.org>2011-12-03 21:31:32 -0800
commitb44cfdf163d5dc0d408a4d2d27854ebfa1e783e5 (patch)
tree712f06e7eecd1d3b42242494f06c1bff3c3d31f2 /source3
parent4e709dc42fff464191f21dfa150a18a072d48569 (diff)
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Add cli_open() back as a synchronous wrapper function the calls
NtCreateX followed by openX() if NtCreateX is unsupported.
Diffstat (limited to 'source3')
-rw-r--r--source3/libsmb/clifile.c115
-rw-r--r--source3/libsmb/proto.h1
2 files changed, 116 insertions, 0 deletions
diff --git a/source3/libsmb/clifile.c b/source3/libsmb/clifile.c
index fc8408feeb..ee37808a22 100644
--- a/source3/libsmb/clifile.c
+++ b/source3/libsmb/clifile.c
@@ -2353,6 +2353,121 @@ NTSTATUS cli_openx(struct cli_state *cli, const char *fname, int flags,
TALLOC_FREE(frame);
return status;
}
+/****************************************************************************
+ Synchronous wrapper function that does an NtCreateX open by preference
+ and falls back to openX if this fails.
+****************************************************************************/
+
+NTSTATUS cli_open(struct cli_state *cli, const char *fname, int flags,
+ int share_mode_in, uint16_t *pfnum)
+{
+ NTSTATUS status;
+ unsigned int openfn = 0;
+ unsigned int dos_deny = 0;
+ uint32_t access_mask, share_mode, create_disposition, create_options;
+
+ /* Do the initial mapping into OpenX parameters. */
+ if (flags & O_CREAT) {
+ openfn |= (1<<4);
+ }
+ if (!(flags & O_EXCL)) {
+ if (flags & O_TRUNC)
+ openfn |= (1<<1);
+ else
+ openfn |= (1<<0);
+ }
+
+ dos_deny = (share_mode_in<<4);
+
+ if ((flags & O_ACCMODE) == O_RDWR) {
+ dos_deny |= 2;
+ } else if ((flags & O_ACCMODE) == O_WRONLY) {
+ dos_deny |= 1;
+ }
+
+#if defined(O_SYNC)
+ if ((flags & O_SYNC) == O_SYNC) {
+ dos_deny |= (1<<14);
+ }
+#endif /* O_SYNC */
+
+ if (share_mode_in == DENY_FCB) {
+ dos_deny = 0xFF;
+ }
+
+#if 0
+ /* Hmmm. This is what I think the above code
+ should look like if it's using the constants
+ we #define. JRA. */
+
+ if (flags & O_CREAT) {
+ openfn |= OPENX_FILE_CREATE_IF_NOT_EXIST;
+ }
+ if (!(flags & O_EXCL)) {
+ if (flags & O_TRUNC)
+ openfn |= OPENX_FILE_EXISTS_TRUNCATE;
+ else
+ openfn |= OPENX_FILE_EXISTS_OPEN;
+ }
+
+ dos_deny = SET_DENY_MODE(share_mode_in);
+
+ if ((flags & O_ACCMODE) == O_RDWR) {
+ dos_deny |= DOS_OPEN_RDWR;
+ } else if ((flags & O_ACCMODE) == O_WRONLY) {
+ dos_deny |= DOS_OPEN_WRONLY;
+ }
+
+#if defined(O_SYNC)
+ if ((flags & O_SYNC) == O_SYNC) {
+ dos_deny |= FILE_SYNC_OPENMODE;
+ }
+#endif /* O_SYNC */
+
+ if (share_mode_in == DENY_FCB) {
+ dos_deny = 0xFF;
+ }
+#endif
+
+ if (!map_open_params_to_ntcreate(fname, dos_deny,
+ openfn, &access_mask,
+ &share_mode, &create_disposition,
+ &create_options, NULL)) {
+ goto try_openx;
+ }
+
+ status = cli_ntcreate(cli,
+ fname,
+ 0,
+ access_mask,
+ 0,
+ share_mode,
+ create_disposition,
+ create_options,
+ 0,
+ pfnum);
+
+ /* Try and cope will all varients of "we don't do this call"
+ and fall back to openX. */
+
+ if (NT_STATUS_EQUAL(status,NT_STATUS_NOT_IMPLEMENTED) ||
+ NT_STATUS_EQUAL(status,NT_STATUS_INVALID_INFO_CLASS) ||
+ NT_STATUS_EQUAL(status,NT_STATUS_PROCEDURE_NOT_FOUND) ||
+ NT_STATUS_EQUAL(status,NT_STATUS_INVALID_LEVEL) ||
+ NT_STATUS_EQUAL(status,NT_STATUS_INVALID_PARAMETER) ||
+ NT_STATUS_EQUAL(status,NT_STATUS_INVALID_DEVICE_REQUEST) ||
+ NT_STATUS_EQUAL(status,NT_STATUS_INVALID_DEVICE_STATE) ||
+ NT_STATUS_EQUAL(status,NT_STATUS_CTL_FILE_NOT_SUPPORTED) ||
+ NT_STATUS_EQUAL(status,NT_STATUS_UNSUCCESSFUL)) {
+ goto try_openx;
+ }
+
+ return status;
+
+ try_openx:
+
+ return cli_openx(cli, fname, flags, share_mode_in, pfnum);
+}
/****************************************************************************
Close a file.
diff --git a/source3/libsmb/proto.h b/source3/libsmb/proto.h
index 27826cbfa4..8dac82358b 100644
--- a/source3/libsmb/proto.h
+++ b/source3/libsmb/proto.h
@@ -397,6 +397,7 @@ struct tevent_req *cli_openx_send(TALLOC_CTX *mem_ctx, struct event_context *ev,
int flags, int share_mode);
NTSTATUS cli_openx_recv(struct tevent_req *req, uint16_t *fnum);
NTSTATUS cli_openx(struct cli_state *cli, const char *fname, int flags, int share_mode, uint16_t *pfnum);
+NTSTATUS cli_open(struct cli_state *cli, const char *fname, int flags, int share_mode, uint16_t *pfnum);
struct tevent_req *cli_close_create(TALLOC_CTX *mem_ctx,
struct event_context *ev,
struct cli_state *cli, uint16_t fnum,