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-rw-r--r--fs/cifs/dir.c157
1 files changed, 77 insertions, 80 deletions
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 578d88c5b46e..f9ed0751cc12 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -305,8 +305,7 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
305 full_path = build_path_from_dentry(direntry); 305 full_path = build_path_from_dentry(direntry);
306 if (full_path == NULL) { 306 if (full_path == NULL) {
307 rc = -ENOMEM; 307 rc = -ENOMEM;
308 FreeXid(xid); 308 goto cifs_create_out;
309 return rc;
310 } 309 }
311 310
312 if (oplockEnabled) 311 if (oplockEnabled)
@@ -365,9 +364,8 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
365 364
366 buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL); 365 buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL);
367 if (buf == NULL) { 366 if (buf == NULL) {
368 kfree(full_path); 367 rc = -ENOMEM;
369 FreeXid(xid); 368 goto cifs_create_out;
370 return -ENOMEM;
371 } 369 }
372 370
373 /* 371 /*
@@ -496,6 +494,11 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode,
496 struct cifsTconInfo *pTcon; 494 struct cifsTconInfo *pTcon;
497 char *full_path = NULL; 495 char *full_path = NULL;
498 struct inode *newinode = NULL; 496 struct inode *newinode = NULL;
497 int oplock = 0;
498 u16 fileHandle;
499 FILE_ALL_INFO *buf = NULL;
500 unsigned int bytes_written;
501 struct win_dev *pdev;
499 502
500 if (!old_valid_dev(device_number)) 503 if (!old_valid_dev(device_number))
501 return -EINVAL; 504 return -EINVAL;
@@ -506,9 +509,12 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode,
506 pTcon = cifs_sb->tcon; 509 pTcon = cifs_sb->tcon;
507 510
508 full_path = build_path_from_dentry(direntry); 511 full_path = build_path_from_dentry(direntry);
509 if (full_path == NULL) 512 if (full_path == NULL) {
510 rc = -ENOMEM; 513 rc = -ENOMEM;
511 else if (pTcon->unix_ext) { 514 goto mknod_out;
515 }
516
517 if (pTcon->unix_ext) {
512 struct cifs_unix_set_info_args args = { 518 struct cifs_unix_set_info_args args = {
513 .mode = mode & ~current_umask(), 519 .mode = mode & ~current_umask(),
514 .ctime = NO_CHANGE_64, 520 .ctime = NO_CHANGE_64,
@@ -527,87 +533,78 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode,
527 cifs_sb->local_nls, 533 cifs_sb->local_nls,
528 cifs_sb->mnt_cifs_flags & 534 cifs_sb->mnt_cifs_flags &
529 CIFS_MOUNT_MAP_SPECIAL_CHR); 535 CIFS_MOUNT_MAP_SPECIAL_CHR);
536 if (rc)
537 goto mknod_out;
530 538
531 if (!rc) { 539 rc = cifs_get_inode_info_unix(&newinode, full_path,
532 rc = cifs_get_inode_info_unix(&newinode, full_path,
533 inode->i_sb, xid); 540 inode->i_sb, xid);
534 if (pTcon->nocase) 541 if (pTcon->nocase)
535 direntry->d_op = &cifs_ci_dentry_ops; 542 direntry->d_op = &cifs_ci_dentry_ops;
536 else 543 else
537 direntry->d_op = &cifs_dentry_ops; 544 direntry->d_op = &cifs_dentry_ops;
538 if (rc == 0)
539 d_instantiate(direntry, newinode);
540 }
541 } else {
542 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
543 int oplock = 0;
544 u16 fileHandle;
545 FILE_ALL_INFO *buf;
546 545
547 cFYI(1, "sfu compat create special file"); 546 if (rc == 0)
547 d_instantiate(direntry, newinode);
548 goto mknod_out;
549 }
548 550
549 buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL); 551 if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL))
550 if (buf == NULL) { 552 goto mknod_out;
551 kfree(full_path);
552 rc = -ENOMEM;
553 FreeXid(xid);
554 return rc;
555 }
556 553
557 rc = CIFSSMBOpen(xid, pTcon, full_path, 554
558 FILE_CREATE, /* fail if exists */ 555 cFYI(1, "sfu compat create special file");
559 GENERIC_WRITE /* BB would 556
560 WRITE_OWNER | WRITE_DAC be better? */, 557 buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL);
561 /* Create a file and set the 558 if (buf == NULL) {
562 file attribute to SYSTEM */ 559 kfree(full_path);
563 CREATE_NOT_DIR | CREATE_OPTION_SPECIAL, 560 rc = -ENOMEM;
564 &fileHandle, &oplock, buf, 561 FreeXid(xid);
565 cifs_sb->local_nls, 562 return rc;
566 cifs_sb->mnt_cifs_flags &
567 CIFS_MOUNT_MAP_SPECIAL_CHR);
568
569 /* BB FIXME - add handling for backlevel servers
570 which need legacy open and check for all
571 calls to SMBOpen for fallback to SMBLeagcyOpen */
572 if (!rc) {
573 /* BB Do not bother to decode buf since no
574 local inode yet to put timestamps in,
575 but we can reuse it safely */
576 unsigned int bytes_written;
577 struct win_dev *pdev;
578 pdev = (struct win_dev *)buf;
579 if (S_ISCHR(mode)) {
580 memcpy(pdev->type, "IntxCHR", 8);
581 pdev->major =
582 cpu_to_le64(MAJOR(device_number));
583 pdev->minor =
584 cpu_to_le64(MINOR(device_number));
585 rc = CIFSSMBWrite(xid, pTcon,
586 fileHandle,
587 sizeof(struct win_dev),
588 0, &bytes_written, (char *)pdev,
589 NULL, 0);
590 } else if (S_ISBLK(mode)) {
591 memcpy(pdev->type, "IntxBLK", 8);
592 pdev->major =
593 cpu_to_le64(MAJOR(device_number));
594 pdev->minor =
595 cpu_to_le64(MINOR(device_number));
596 rc = CIFSSMBWrite(xid, pTcon,
597 fileHandle,
598 sizeof(struct win_dev),
599 0, &bytes_written, (char *)pdev,
600 NULL, 0);
601 } /* else if(S_ISFIFO */
602 CIFSSMBClose(xid, pTcon, fileHandle);
603 d_drop(direntry);
604 }
605 kfree(buf);
606 /* add code here to set EAs */
607 }
608 } 563 }
609 564
565 /* FIXME: would WRITE_OWNER | WRITE_DAC be better? */
566 rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_CREATE,
567 GENERIC_WRITE, CREATE_NOT_DIR | CREATE_OPTION_SPECIAL,
568 &fileHandle, &oplock, buf, cifs_sb->local_nls,
569 cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
570 if (rc)
571 goto mknod_out;
572
573 /* BB Do not bother to decode buf since no local inode yet to put
574 * timestamps in, but we can reuse it safely */
575
576 pdev = (struct win_dev *)buf;
577 if (S_ISCHR(mode)) {
578 memcpy(pdev->type, "IntxCHR", 8);
579 pdev->major =
580 cpu_to_le64(MAJOR(device_number));
581 pdev->minor =
582 cpu_to_le64(MINOR(device_number));
583 rc = CIFSSMBWrite(xid, pTcon,
584 fileHandle,
585 sizeof(struct win_dev),
586 0, &bytes_written, (char *)pdev,
587 NULL, 0);
588 } else if (S_ISBLK(mode)) {
589 memcpy(pdev->type, "IntxBLK", 8);
590 pdev->major =
591 cpu_to_le64(MAJOR(device_number));
592 pdev->minor =
593 cpu_to_le64(MINOR(device_number));
594 rc = CIFSSMBWrite(xid, pTcon,
595 fileHandle,
596 sizeof(struct win_dev),
597 0, &bytes_written, (char *)pdev,
598 NULL, 0);
599 } /* else if (S_ISFIFO) */
600 CIFSSMBClose(xid, pTcon, fileHandle);
601 d_drop(direntry);
602
603 /* FIXME: add code here to set EAs */
604
605mknod_out:
610 kfree(full_path); 606 kfree(full_path);
607 kfree(buf);
611 FreeXid(xid); 608 FreeXid(xid);
612 return rc; 609 return rc;
613} 610}
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-11 18:26:55 -0500