diff options
author | Steve French <stfrench@microsoft.com> | 2023-05-22 04:46:30 +0300 |
---|---|---|
committer | Steve French <stfrench@microsoft.com> | 2023-05-25 00:29:21 +0300 |
commit | 38c8a9a52082579090e34c033d439ed2cd1a462d (patch) | |
tree | ca6c3bf5b2b912f32735c1aa0a045cd21a47a205 /fs/cifs/smb2inode.c | |
parent | cb8b02fd6343228966324528adf920bfb8b8e681 (diff) | |
download | linux-38c8a9a52082579090e34c033d439ed2cd1a462d.tar.xz |
smb: move client and server files to common directory fs/smb
Move CIFS/SMB3 related client and server files (cifs.ko and ksmbd.ko
and helper modules) to new fs/smb subdirectory:
fs/cifs --> fs/smb/client
fs/ksmbd --> fs/smb/server
fs/smbfs_common --> fs/smb/common
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/cifs/smb2inode.c')
-rw-r--r-- | fs/cifs/smb2inode.c | 844 |
1 files changed, 0 insertions, 844 deletions
diff --git a/fs/cifs/smb2inode.c b/fs/cifs/smb2inode.c deleted file mode 100644 index 163a03298430..000000000000 --- a/fs/cifs/smb2inode.c +++ /dev/null @@ -1,844 +0,0 @@ -// SPDX-License-Identifier: LGPL-2.1 -/* - * - * Copyright (C) International Business Machines Corp., 2002, 2011 - * Etersoft, 2012 - * Author(s): Pavel Shilovsky (pshilovsky@samba.org), - * Steve French (sfrench@us.ibm.com) - * - */ -#include <linux/fs.h> -#include <linux/stat.h> -#include <linux/slab.h> -#include <linux/pagemap.h> -#include <asm/div64.h> -#include "cifsfs.h" -#include "cifspdu.h" -#include "cifsglob.h" -#include "cifsproto.h" -#include "cifs_debug.h" -#include "cifs_fs_sb.h" -#include "cifs_unicode.h" -#include "fscache.h" -#include "smb2glob.h" -#include "smb2pdu.h" -#include "smb2proto.h" -#include "cached_dir.h" -#include "smb2status.h" - -static void -free_set_inf_compound(struct smb_rqst *rqst) -{ - if (rqst[1].rq_iov) - SMB2_set_info_free(&rqst[1]); - if (rqst[2].rq_iov) - SMB2_close_free(&rqst[2]); -} - - -struct cop_vars { - struct cifs_open_parms oparms; - struct kvec rsp_iov[3]; - struct smb_rqst rqst[3]; - struct kvec open_iov[SMB2_CREATE_IOV_SIZE]; - struct kvec qi_iov[1]; - struct kvec si_iov[SMB2_SET_INFO_IOV_SIZE]; - struct kvec close_iov[1]; - struct smb2_file_rename_info rename_info; - struct smb2_file_link_info link_info; -}; - -/* - * note: If cfile is passed, the reference to it is dropped here. - * So make sure that you do not reuse cfile after return from this func. - * - * If passing @err_iov and @err_buftype, ensure to make them both large enough (>= 3) to hold all - * error responses. Caller is also responsible for freeing them up. - */ -static int smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon, - struct cifs_sb_info *cifs_sb, const char *full_path, - __u32 desired_access, __u32 create_disposition, __u32 create_options, - umode_t mode, void *ptr, int command, struct cifsFileInfo *cfile, - __u8 **extbuf, size_t *extbuflen, - struct kvec *err_iov, int *err_buftype) -{ - struct cop_vars *vars = NULL; - struct kvec *rsp_iov; - struct smb_rqst *rqst; - int rc; - __le16 *utf16_path = NULL; - __u8 oplock = SMB2_OPLOCK_LEVEL_NONE; - struct cifs_fid fid; - struct cifs_ses *ses = tcon->ses; - struct TCP_Server_Info *server; - int num_rqst = 0; - int resp_buftype[3]; - struct smb2_query_info_rsp *qi_rsp = NULL; - struct cifs_open_info_data *idata; - int flags = 0; - __u8 delete_pending[8] = {1, 0, 0, 0, 0, 0, 0, 0}; - unsigned int size[2]; - void *data[2]; - int len; - - vars = kzalloc(sizeof(*vars), GFP_ATOMIC); - if (vars == NULL) - return -ENOMEM; - rqst = &vars->rqst[0]; - rsp_iov = &vars->rsp_iov[0]; - - server = cifs_pick_channel(ses); - - if (smb3_encryption_required(tcon)) - flags |= CIFS_TRANSFORM_REQ; - - resp_buftype[0] = resp_buftype[1] = resp_buftype[2] = CIFS_NO_BUFFER; - - /* We already have a handle so we can skip the open */ - if (cfile) - goto after_open; - - /* Open */ - utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb); - if (!utf16_path) { - rc = -ENOMEM; - goto finished; - } - - vars->oparms = (struct cifs_open_parms) { - .tcon = tcon, - .path = full_path, - .desired_access = desired_access, - .disposition = create_disposition, - .create_options = cifs_create_options(cifs_sb, create_options), - .fid = &fid, - .mode = mode, - .cifs_sb = cifs_sb, - }; - - rqst[num_rqst].rq_iov = &vars->open_iov[0]; - rqst[num_rqst].rq_nvec = SMB2_CREATE_IOV_SIZE; - rc = SMB2_open_init(tcon, server, - &rqst[num_rqst], &oplock, &vars->oparms, - utf16_path); - kfree(utf16_path); - if (rc) - goto finished; - - smb2_set_next_command(tcon, &rqst[num_rqst]); - after_open: - num_rqst++; - rc = 0; - - /* Operation */ - switch (command) { - case SMB2_OP_QUERY_INFO: - rqst[num_rqst].rq_iov = &vars->qi_iov[0]; - rqst[num_rqst].rq_nvec = 1; - - if (cfile) - rc = SMB2_query_info_init(tcon, server, - &rqst[num_rqst], - cfile->fid.persistent_fid, - cfile->fid.volatile_fid, - FILE_ALL_INFORMATION, - SMB2_O_INFO_FILE, 0, - sizeof(struct smb2_file_all_info) + - PATH_MAX * 2, 0, NULL); - else { - rc = SMB2_query_info_init(tcon, server, - &rqst[num_rqst], - COMPOUND_FID, - COMPOUND_FID, - FILE_ALL_INFORMATION, - SMB2_O_INFO_FILE, 0, - sizeof(struct smb2_file_all_info) + - PATH_MAX * 2, 0, NULL); - if (!rc) { - smb2_set_next_command(tcon, &rqst[num_rqst]); - smb2_set_related(&rqst[num_rqst]); - } - } - - if (rc) - goto finished; - num_rqst++; - trace_smb3_query_info_compound_enter(xid, ses->Suid, tcon->tid, - full_path); - break; - case SMB2_OP_POSIX_QUERY_INFO: - rqst[num_rqst].rq_iov = &vars->qi_iov[0]; - rqst[num_rqst].rq_nvec = 1; - - if (cfile) - rc = SMB2_query_info_init(tcon, server, - &rqst[num_rqst], - cfile->fid.persistent_fid, - cfile->fid.volatile_fid, - SMB_FIND_FILE_POSIX_INFO, - SMB2_O_INFO_FILE, 0, - /* TBD: fix following to allow for longer SIDs */ - sizeof(struct smb311_posix_qinfo *) + (PATH_MAX * 2) + - (sizeof(struct cifs_sid) * 2), 0, NULL); - else { - rc = SMB2_query_info_init(tcon, server, - &rqst[num_rqst], - COMPOUND_FID, - COMPOUND_FID, - SMB_FIND_FILE_POSIX_INFO, - SMB2_O_INFO_FILE, 0, - sizeof(struct smb311_posix_qinfo *) + (PATH_MAX * 2) + - (sizeof(struct cifs_sid) * 2), 0, NULL); - if (!rc) { - smb2_set_next_command(tcon, &rqst[num_rqst]); - smb2_set_related(&rqst[num_rqst]); - } - } - - if (rc) - goto finished; - num_rqst++; - trace_smb3_posix_query_info_compound_enter(xid, ses->Suid, tcon->tid, full_path); - break; - case SMB2_OP_DELETE: - trace_smb3_delete_enter(xid, ses->Suid, tcon->tid, full_path); - break; - case SMB2_OP_MKDIR: - /* - * Directories are created through parameters in the - * SMB2_open() call. - */ - trace_smb3_mkdir_enter(xid, ses->Suid, tcon->tid, full_path); - break; - case SMB2_OP_RMDIR: - rqst[num_rqst].rq_iov = &vars->si_iov[0]; - rqst[num_rqst].rq_nvec = 1; - - size[0] = 1; /* sizeof __u8 See MS-FSCC section 2.4.11 */ - data[0] = &delete_pending[0]; - - rc = SMB2_set_info_init(tcon, server, - &rqst[num_rqst], COMPOUND_FID, - COMPOUND_FID, current->tgid, - FILE_DISPOSITION_INFORMATION, - SMB2_O_INFO_FILE, 0, data, size); - if (rc) - goto finished; - smb2_set_next_command(tcon, &rqst[num_rqst]); - smb2_set_related(&rqst[num_rqst++]); - trace_smb3_rmdir_enter(xid, ses->Suid, tcon->tid, full_path); - break; - case SMB2_OP_SET_EOF: - rqst[num_rqst].rq_iov = &vars->si_iov[0]; - rqst[num_rqst].rq_nvec = 1; - - size[0] = 8; /* sizeof __le64 */ - data[0] = ptr; - - if (cfile) { - rc = SMB2_set_info_init(tcon, server, - &rqst[num_rqst], - cfile->fid.persistent_fid, - cfile->fid.volatile_fid, - current->tgid, - FILE_END_OF_FILE_INFORMATION, - SMB2_O_INFO_FILE, 0, - data, size); - } else { - rc = SMB2_set_info_init(tcon, server, - &rqst[num_rqst], - COMPOUND_FID, - COMPOUND_FID, - current->tgid, - FILE_END_OF_FILE_INFORMATION, - SMB2_O_INFO_FILE, 0, - data, size); - if (!rc) { - smb2_set_next_command(tcon, &rqst[num_rqst]); - smb2_set_related(&rqst[num_rqst]); - } - } - if (rc) - goto finished; - num_rqst++; - trace_smb3_set_eof_enter(xid, ses->Suid, tcon->tid, full_path); - break; - case SMB2_OP_SET_INFO: - rqst[num_rqst].rq_iov = &vars->si_iov[0]; - rqst[num_rqst].rq_nvec = 1; - - - size[0] = sizeof(FILE_BASIC_INFO); - data[0] = ptr; - - if (cfile) - rc = SMB2_set_info_init(tcon, server, - &rqst[num_rqst], - cfile->fid.persistent_fid, - cfile->fid.volatile_fid, current->tgid, - FILE_BASIC_INFORMATION, - SMB2_O_INFO_FILE, 0, data, size); - else { - rc = SMB2_set_info_init(tcon, server, - &rqst[num_rqst], - COMPOUND_FID, - COMPOUND_FID, current->tgid, - FILE_BASIC_INFORMATION, - SMB2_O_INFO_FILE, 0, data, size); - if (!rc) { - smb2_set_next_command(tcon, &rqst[num_rqst]); - smb2_set_related(&rqst[num_rqst]); - } - } - - if (rc) - goto finished; - num_rqst++; - trace_smb3_set_info_compound_enter(xid, ses->Suid, tcon->tid, - full_path); - break; - case SMB2_OP_RENAME: - rqst[num_rqst].rq_iov = &vars->si_iov[0]; - rqst[num_rqst].rq_nvec = 2; - - len = (2 * UniStrnlen((wchar_t *)ptr, PATH_MAX)); - - vars->rename_info.ReplaceIfExists = 1; - vars->rename_info.RootDirectory = 0; - vars->rename_info.FileNameLength = cpu_to_le32(len); - - size[0] = sizeof(struct smb2_file_rename_info); - data[0] = &vars->rename_info; - - size[1] = len + 2 /* null */; - data[1] = (__le16 *)ptr; - - if (cfile) - rc = SMB2_set_info_init(tcon, server, - &rqst[num_rqst], - cfile->fid.persistent_fid, - cfile->fid.volatile_fid, - current->tgid, FILE_RENAME_INFORMATION, - SMB2_O_INFO_FILE, 0, data, size); - else { - rc = SMB2_set_info_init(tcon, server, - &rqst[num_rqst], - COMPOUND_FID, COMPOUND_FID, - current->tgid, FILE_RENAME_INFORMATION, - SMB2_O_INFO_FILE, 0, data, size); - if (!rc) { - smb2_set_next_command(tcon, &rqst[num_rqst]); - smb2_set_related(&rqst[num_rqst]); - } - } - if (rc) - goto finished; - num_rqst++; - trace_smb3_rename_enter(xid, ses->Suid, tcon->tid, full_path); - break; - case SMB2_OP_HARDLINK: - rqst[num_rqst].rq_iov = &vars->si_iov[0]; - rqst[num_rqst].rq_nvec = 2; - - len = (2 * UniStrnlen((wchar_t *)ptr, PATH_MAX)); - - vars->link_info.ReplaceIfExists = 0; - vars->link_info.RootDirectory = 0; - vars->link_info.FileNameLength = cpu_to_le32(len); - - size[0] = sizeof(struct smb2_file_link_info); - data[0] = &vars->link_info; - - size[1] = len + 2 /* null */; - data[1] = (__le16 *)ptr; - - rc = SMB2_set_info_init(tcon, server, - &rqst[num_rqst], COMPOUND_FID, - COMPOUND_FID, current->tgid, - FILE_LINK_INFORMATION, - SMB2_O_INFO_FILE, 0, data, size); - if (rc) - goto finished; - smb2_set_next_command(tcon, &rqst[num_rqst]); - smb2_set_related(&rqst[num_rqst++]); - trace_smb3_hardlink_enter(xid, ses->Suid, tcon->tid, full_path); - break; - default: - cifs_dbg(VFS, "Invalid command\n"); - rc = -EINVAL; - } - if (rc) - goto finished; - - /* We already have a handle so we can skip the close */ - if (cfile) - goto after_close; - /* Close */ - flags |= CIFS_CP_CREATE_CLOSE_OP; - rqst[num_rqst].rq_iov = &vars->close_iov[0]; - rqst[num_rqst].rq_nvec = 1; - rc = SMB2_close_init(tcon, server, - &rqst[num_rqst], COMPOUND_FID, - COMPOUND_FID, false); - smb2_set_related(&rqst[num_rqst]); - if (rc) - goto finished; - after_close: - num_rqst++; - - if (cfile) { - rc = compound_send_recv(xid, ses, server, - flags, num_rqst - 2, - &rqst[1], &resp_buftype[1], - &rsp_iov[1]); - } else - rc = compound_send_recv(xid, ses, server, - flags, num_rqst, - rqst, resp_buftype, - rsp_iov); - - finished: - if (cfile) - cifsFileInfo_put(cfile); - - SMB2_open_free(&rqst[0]); - if (rc == -EREMCHG) { - pr_warn_once("server share %s deleted\n", tcon->tree_name); - tcon->need_reconnect = true; - } - - switch (command) { - case SMB2_OP_QUERY_INFO: - idata = ptr; - if (rc == 0 && cfile && cfile->symlink_target) { - idata->symlink_target = kstrdup(cfile->symlink_target, GFP_KERNEL); - if (!idata->symlink_target) - rc = -ENOMEM; - } - if (rc == 0) { - qi_rsp = (struct smb2_query_info_rsp *) - rsp_iov[1].iov_base; - rc = smb2_validate_and_copy_iov( - le16_to_cpu(qi_rsp->OutputBufferOffset), - le32_to_cpu(qi_rsp->OutputBufferLength), - &rsp_iov[1], sizeof(idata->fi), (char *)&idata->fi); - } - if (rqst[1].rq_iov) - SMB2_query_info_free(&rqst[1]); - if (rqst[2].rq_iov) - SMB2_close_free(&rqst[2]); - if (rc) - trace_smb3_query_info_compound_err(xid, ses->Suid, - tcon->tid, rc); - else - trace_smb3_query_info_compound_done(xid, ses->Suid, - tcon->tid); - break; - case SMB2_OP_POSIX_QUERY_INFO: - idata = ptr; - if (rc == 0 && cfile && cfile->symlink_target) { - idata->symlink_target = kstrdup(cfile->symlink_target, GFP_KERNEL); - if (!idata->symlink_target) - rc = -ENOMEM; - } - if (rc == 0) { - qi_rsp = (struct smb2_query_info_rsp *) - rsp_iov[1].iov_base; - rc = smb2_validate_and_copy_iov( - le16_to_cpu(qi_rsp->OutputBufferOffset), - le32_to_cpu(qi_rsp->OutputBufferLength), - &rsp_iov[1], sizeof(idata->posix_fi) /* add SIDs */, - (char *)&idata->posix_fi); - } - if (rc == 0) { - unsigned int length = le32_to_cpu(qi_rsp->OutputBufferLength); - - if (length > sizeof(idata->posix_fi)) { - char *base = (char *)rsp_iov[1].iov_base + - le16_to_cpu(qi_rsp->OutputBufferOffset) + - sizeof(idata->posix_fi); - *extbuflen = length - sizeof(idata->posix_fi); - *extbuf = kmemdup(base, *extbuflen, GFP_KERNEL); - if (!*extbuf) - rc = -ENOMEM; - } else { - rc = -EINVAL; - } - } - if (rqst[1].rq_iov) - SMB2_query_info_free(&rqst[1]); - if (rqst[2].rq_iov) - SMB2_close_free(&rqst[2]); - if (rc) - trace_smb3_posix_query_info_compound_err(xid, ses->Suid, tcon->tid, rc); - else - trace_smb3_posix_query_info_compound_done(xid, ses->Suid, tcon->tid); - break; - case SMB2_OP_DELETE: - if (rc) - trace_smb3_delete_err(xid, ses->Suid, tcon->tid, rc); - else - trace_smb3_delete_done(xid, ses->Suid, tcon->tid); - if (rqst[1].rq_iov) - SMB2_close_free(&rqst[1]); - break; - case SMB2_OP_MKDIR: - if (rc) - trace_smb3_mkdir_err(xid, ses->Suid, tcon->tid, rc); - else - trace_smb3_mkdir_done(xid, ses->Suid, tcon->tid); - if (rqst[1].rq_iov) - SMB2_close_free(&rqst[1]); - break; - case SMB2_OP_HARDLINK: - if (rc) - trace_smb3_hardlink_err(xid, ses->Suid, tcon->tid, rc); - else - trace_smb3_hardlink_done(xid, ses->Suid, tcon->tid); - free_set_inf_compound(rqst); - break; - case SMB2_OP_RENAME: - if (rc) - trace_smb3_rename_err(xid, ses->Suid, tcon->tid, rc); - else - trace_smb3_rename_done(xid, ses->Suid, tcon->tid); - free_set_inf_compound(rqst); - break; - case SMB2_OP_RMDIR: - if (rc) - trace_smb3_rmdir_err(xid, ses->Suid, tcon->tid, rc); - else - trace_smb3_rmdir_done(xid, ses->Suid, tcon->tid); - free_set_inf_compound(rqst); - break; - case SMB2_OP_SET_EOF: - if (rc) - trace_smb3_set_eof_err(xid, ses->Suid, tcon->tid, rc); - else - trace_smb3_set_eof_done(xid, ses->Suid, tcon->tid); - free_set_inf_compound(rqst); - break; - case SMB2_OP_SET_INFO: - if (rc) - trace_smb3_set_info_compound_err(xid, ses->Suid, - tcon->tid, rc); - else - trace_smb3_set_info_compound_done(xid, ses->Suid, - tcon->tid); - free_set_inf_compound(rqst); - break; - } - - if (rc && err_iov && err_buftype) { - memcpy(err_iov, rsp_iov, 3 * sizeof(*err_iov)); - memcpy(err_buftype, resp_buftype, 3 * sizeof(*err_buftype)); - } else { - free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base); - free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base); - free_rsp_buf(resp_buftype[2], rsp_iov[2].iov_base); - } - kfree(vars); - return rc; -} - -int smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon, - struct cifs_sb_info *cifs_sb, const char *full_path, - struct cifs_open_info_data *data, bool *adjust_tz, bool *reparse) -{ - __u32 create_options = 0; - struct cifsFileInfo *cfile; - struct cached_fid *cfid = NULL; - struct kvec err_iov[3] = {}; - int err_buftype[3] = {}; - bool islink; - int rc, rc2; - - *adjust_tz = false; - *reparse = false; - - if (strcmp(full_path, "")) - rc = -ENOENT; - else - rc = open_cached_dir(xid, tcon, full_path, cifs_sb, false, &cfid); - /* If it is a root and its handle is cached then use it */ - if (!rc) { - if (cfid->file_all_info_is_valid) { - memcpy(&data->fi, &cfid->file_all_info, sizeof(data->fi)); - } else { - rc = SMB2_query_info(xid, tcon, cfid->fid.persistent_fid, - cfid->fid.volatile_fid, &data->fi); - } - close_cached_dir(cfid); - return rc; - } - - cifs_get_readable_path(tcon, full_path, &cfile); - rc = smb2_compound_op(xid, tcon, cifs_sb, full_path, FILE_READ_ATTRIBUTES, FILE_OPEN, - create_options, ACL_NO_MODE, data, SMB2_OP_QUERY_INFO, cfile, - NULL, NULL, err_iov, err_buftype); - if (rc) { - struct smb2_hdr *hdr = err_iov[0].iov_base; - - if (unlikely(!hdr || err_buftype[0] == CIFS_NO_BUFFER)) - goto out; - if (rc == -EOPNOTSUPP && hdr->Command == SMB2_CREATE && - hdr->Status == STATUS_STOPPED_ON_SYMLINK) { - rc = smb2_parse_symlink_response(cifs_sb, err_iov, - &data->symlink_target); - if (rc) - goto out; - - *reparse = true; - create_options |= OPEN_REPARSE_POINT; - - /* Failed on a symbolic link - query a reparse point info */ - cifs_get_readable_path(tcon, full_path, &cfile); - rc = smb2_compound_op(xid, tcon, cifs_sb, full_path, - FILE_READ_ATTRIBUTES, FILE_OPEN, - create_options, ACL_NO_MODE, data, - SMB2_OP_QUERY_INFO, cfile, NULL, NULL, - NULL, NULL); - goto out; - } else if (rc != -EREMOTE && hdr->Status == STATUS_OBJECT_NAME_INVALID) { - rc2 = cifs_inval_name_dfs_link_error(xid, tcon, cifs_sb, - full_path, &islink); - if (rc2) { - rc = rc2; - goto out; - } - if (islink) - rc = -EREMOTE; - } - if (rc == -EREMOTE && IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) && cifs_sb && - (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_DFS)) - rc = -EOPNOTSUPP; - } - -out: - free_rsp_buf(err_buftype[0], err_iov[0].iov_base); - free_rsp_buf(err_buftype[1], err_iov[1].iov_base); - free_rsp_buf(err_buftype[2], err_iov[2].iov_base); - return rc; -} - - -int smb311_posix_query_path_info(const unsigned int xid, struct cifs_tcon *tcon, - struct cifs_sb_info *cifs_sb, const char *full_path, - struct cifs_open_info_data *data, - struct cifs_sid *owner, - struct cifs_sid *group, - bool *adjust_tz, bool *reparse) -{ - int rc; - __u32 create_options = 0; - struct cifsFileInfo *cfile; - struct kvec err_iov[3] = {}; - int err_buftype[3] = {}; - __u8 *sidsbuf = NULL; - __u8 *sidsbuf_end = NULL; - size_t sidsbuflen = 0; - size_t owner_len, group_len; - - *adjust_tz = false; - *reparse = false; - - /* - * BB TODO: Add support for using the cached root handle. - * Create SMB2_query_posix_info worker function to do non-compounded query - * when we already have an open file handle for this. For now this is fast enough - * (always using the compounded version). - */ - - cifs_get_readable_path(tcon, full_path, &cfile); - rc = smb2_compound_op(xid, tcon, cifs_sb, full_path, FILE_READ_ATTRIBUTES, FILE_OPEN, - create_options, ACL_NO_MODE, data, SMB2_OP_POSIX_QUERY_INFO, cfile, - &sidsbuf, &sidsbuflen, err_iov, err_buftype); - if (rc == -EOPNOTSUPP) { - /* BB TODO: When support for special files added to Samba re-verify this path */ - if (err_iov[0].iov_base && err_buftype[0] != CIFS_NO_BUFFER && - ((struct smb2_hdr *)err_iov[0].iov_base)->Command == SMB2_CREATE && - ((struct smb2_hdr *)err_iov[0].iov_base)->Status == STATUS_STOPPED_ON_SYMLINK) { - rc = smb2_parse_symlink_response(cifs_sb, err_iov, &data->symlink_target); - if (rc) - goto out; - } - *reparse = true; - create_options |= OPEN_REPARSE_POINT; - - /* Failed on a symbolic link - query a reparse point info */ - cifs_get_readable_path(tcon, full_path, &cfile); - rc = smb2_compound_op(xid, tcon, cifs_sb, full_path, FILE_READ_ATTRIBUTES, - FILE_OPEN, create_options, ACL_NO_MODE, data, - SMB2_OP_POSIX_QUERY_INFO, cfile, - &sidsbuf, &sidsbuflen, NULL, NULL); - } - - if (rc == 0) { - sidsbuf_end = sidsbuf + sidsbuflen; - - owner_len = posix_info_sid_size(sidsbuf, sidsbuf_end); - if (owner_len == -1) { - rc = -EINVAL; - goto out; - } - memcpy(owner, sidsbuf, owner_len); - - group_len = posix_info_sid_size( - sidsbuf + owner_len, sidsbuf_end); - if (group_len == -1) { - rc = -EINVAL; - goto out; - } - memcpy(group, sidsbuf + owner_len, group_len); - } - -out: - kfree(sidsbuf); - free_rsp_buf(err_buftype[0], err_iov[0].iov_base); - free_rsp_buf(err_buftype[1], err_iov[1].iov_base); - free_rsp_buf(err_buftype[2], err_iov[2].iov_base); - return rc; -} - -int -smb2_mkdir(const unsigned int xid, struct inode *parent_inode, umode_t mode, - struct cifs_tcon *tcon, const char *name, - struct cifs_sb_info *cifs_sb) -{ - return smb2_compound_op(xid, tcon, cifs_sb, name, - FILE_WRITE_ATTRIBUTES, FILE_CREATE, - CREATE_NOT_FILE, mode, NULL, SMB2_OP_MKDIR, - NULL, NULL, NULL, NULL, NULL); -} - -void -smb2_mkdir_setinfo(struct inode *inode, const char *name, - struct cifs_sb_info *cifs_sb, struct cifs_tcon *tcon, - const unsigned int xid) -{ - FILE_BASIC_INFO data; - struct cifsInodeInfo *cifs_i; - struct cifsFileInfo *cfile; - u32 dosattrs; - int tmprc; - - memset(&data, 0, sizeof(data)); - cifs_i = CIFS_I(inode); - dosattrs = cifs_i->cifsAttrs | ATTR_READONLY; - data.Attributes = cpu_to_le32(dosattrs); - cifs_get_writable_path(tcon, name, FIND_WR_ANY, &cfile); - tmprc = smb2_compound_op(xid, tcon, cifs_sb, name, - FILE_WRITE_ATTRIBUTES, FILE_CREATE, - CREATE_NOT_FILE, ACL_NO_MODE, - &data, SMB2_OP_SET_INFO, cfile, NULL, NULL, NULL, NULL); - if (tmprc == 0) - cifs_i->cifsAttrs = dosattrs; -} - -int -smb2_rmdir(const unsigned int xid, struct cifs_tcon *tcon, const char *name, - struct cifs_sb_info *cifs_sb) -{ - drop_cached_dir_by_name(xid, tcon, name, cifs_sb); - return smb2_compound_op(xid, tcon, cifs_sb, name, DELETE, FILE_OPEN, - CREATE_NOT_FILE, ACL_NO_MODE, - NULL, SMB2_OP_RMDIR, NULL, NULL, NULL, NULL, NULL); -} - -int -smb2_unlink(const unsigned int xid, struct cifs_tcon *tcon, const char *name, - struct cifs_sb_info *cifs_sb) -{ - return smb2_compound_op(xid, tcon, cifs_sb, name, DELETE, FILE_OPEN, - CREATE_DELETE_ON_CLOSE | OPEN_REPARSE_POINT, - ACL_NO_MODE, NULL, SMB2_OP_DELETE, NULL, NULL, NULL, NULL, NULL); -} - -static int -smb2_set_path_attr(const unsigned int xid, struct cifs_tcon *tcon, - const char *from_name, const char *to_name, - struct cifs_sb_info *cifs_sb, __u32 access, int command, - struct cifsFileInfo *cfile) -{ - __le16 *smb2_to_name = NULL; - int rc; - - smb2_to_name = cifs_convert_path_to_utf16(to_name, cifs_sb); - if (smb2_to_name == NULL) { - rc = -ENOMEM; - goto smb2_rename_path; - } - rc = smb2_compound_op(xid, tcon, cifs_sb, from_name, access, - FILE_OPEN, 0, ACL_NO_MODE, smb2_to_name, - command, cfile, NULL, NULL, NULL, NULL); -smb2_rename_path: - kfree(smb2_to_name); - return rc; -} - -int -smb2_rename_path(const unsigned int xid, struct cifs_tcon *tcon, - const char *from_name, const char *to_name, - struct cifs_sb_info *cifs_sb) -{ - struct cifsFileInfo *cfile; - - drop_cached_dir_by_name(xid, tcon, from_name, cifs_sb); - cifs_get_writable_path(tcon, from_name, FIND_WR_WITH_DELETE, &cfile); - - return smb2_set_path_attr(xid, tcon, from_name, to_name, - cifs_sb, DELETE, SMB2_OP_RENAME, cfile); -} - -int -smb2_create_hardlink(const unsigned int xid, struct cifs_tcon *tcon, - const char *from_name, const char *to_name, - struct cifs_sb_info *cifs_sb) -{ - return smb2_set_path_attr(xid, tcon, from_name, to_name, cifs_sb, - FILE_READ_ATTRIBUTES, SMB2_OP_HARDLINK, - NULL); -} - -int -smb2_set_path_size(const unsigned int xid, struct cifs_tcon *tcon, - const char *full_path, __u64 size, - struct cifs_sb_info *cifs_sb, bool set_alloc) -{ - __le64 eof = cpu_to_le64(size); - struct cifsFileInfo *cfile; - - cifs_get_writable_path(tcon, full_path, FIND_WR_ANY, &cfile); - return smb2_compound_op(xid, tcon, cifs_sb, full_path, - FILE_WRITE_DATA, FILE_OPEN, 0, ACL_NO_MODE, - &eof, SMB2_OP_SET_EOF, cfile, NULL, NULL, NULL, NULL); -} - -int -smb2_set_file_info(struct inode *inode, const char *full_path, - FILE_BASIC_INFO *buf, const unsigned int xid) -{ - struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); - struct tcon_link *tlink; - struct cifs_tcon *tcon; - struct cifsFileInfo *cfile; - int rc; - - if ((buf->CreationTime == 0) && (buf->LastAccessTime == 0) && - (buf->LastWriteTime == 0) && (buf->ChangeTime == 0) && - (buf->Attributes == 0)) - return 0; /* would be a no op, no sense sending this */ - - tlink = cifs_sb_tlink(cifs_sb); - if (IS_ERR(tlink)) - return PTR_ERR(tlink); - tcon = tlink_tcon(tlink); - - cifs_get_writable_path(tcon, full_path, FIND_WR_ANY, &cfile); - rc = smb2_compound_op(xid, tcon, cifs_sb, full_path, - FILE_WRITE_ATTRIBUTES, FILE_OPEN, - 0, ACL_NO_MODE, buf, SMB2_OP_SET_INFO, cfile, - NULL, NULL, NULL, NULL); - cifs_put_tlink(tlink); - return rc; -} |