diff options
Diffstat (limited to 'fs/smb/client')
-rw-r--r-- | fs/smb/client/Kconfig | 1 | ||||
-rw-r--r-- | fs/smb/client/cifsfs.c | 3 | ||||
-rw-r--r-- | fs/smb/client/cifsproto.h | 1 | ||||
-rw-r--r-- | fs/smb/client/connect.c | 40 | ||||
-rw-r--r-- | fs/smb/client/inode.c | 99 | ||||
-rw-r--r-- | fs/smb/client/readdir.c | 54 | ||||
-rw-r--r-- | fs/smb/client/reparse.c | 86 | ||||
-rw-r--r-- | fs/smb/client/sess.c | 4 | ||||
-rw-r--r-- | fs/smb/client/smb2inode.c | 3 | ||||
-rw-r--r-- | fs/smb/client/smb2pdu.c | 5 |
10 files changed, 214 insertions, 82 deletions
diff --git a/fs/smb/client/Kconfig b/fs/smb/client/Kconfig index 2aff6d1395ce..9f05f94e265a 100644 --- a/fs/smb/client/Kconfig +++ b/fs/smb/client/Kconfig @@ -2,7 +2,6 @@ config CIFS tristate "SMB3 and CIFS support (advanced network filesystem)" depends on INET - select NETFS_SUPPORT select NLS select NLS_UCS2_UTILS select CRYPTO diff --git a/fs/smb/client/cifsfs.c b/fs/smb/client/cifsfs.c index c9f9b6e97964..b800c9f585d8 100644 --- a/fs/smb/client/cifsfs.c +++ b/fs/smb/client/cifsfs.c @@ -398,7 +398,7 @@ cifs_alloc_inode(struct super_block *sb) cifs_inode = alloc_inode_sb(sb, cifs_inode_cachep, GFP_KERNEL); if (!cifs_inode) return NULL; - cifs_inode->cifsAttrs = 0x20; /* default */ + cifs_inode->cifsAttrs = ATTR_ARCHIVE; /* default */ cifs_inode->time = 0; /* * Until the file is open and we have gotten oplock info back from the @@ -2043,6 +2043,7 @@ exit_cifs(void) destroy_workqueue(decrypt_wq); destroy_workqueue(fileinfo_put_wq); destroy_workqueue(serverclose_wq); + destroy_workqueue(cfid_put_wq); destroy_workqueue(cifsiod_wq); cifs_proc_clean(); } diff --git a/fs/smb/client/cifsproto.h b/fs/smb/client/cifsproto.h index bbaaf16af20f..754417cb3294 100644 --- a/fs/smb/client/cifsproto.h +++ b/fs/smb/client/cifsproto.h @@ -669,6 +669,7 @@ int __cifs_sfu_make_node(unsigned int xid, struct inode *inode, int cifs_sfu_make_node(unsigned int xid, struct inode *inode, struct dentry *dentry, struct cifs_tcon *tcon, const char *full_path, umode_t mode, dev_t dev); +umode_t wire_mode_to_posix(u32 wire, bool is_dir); #ifdef CONFIG_CIFS_DFS_UPCALL static inline int get_dfs_path(const unsigned int xid, struct cifs_ses *ses, diff --git a/fs/smb/client/connect.c b/fs/smb/client/connect.c index 56b3a9eb9b05..ddcc9e514a0e 100644 --- a/fs/smb/client/connect.c +++ b/fs/smb/client/connect.c @@ -987,9 +987,13 @@ clean_demultiplex_info(struct TCP_Server_Info *server) msleep(125); if (cifs_rdma_enabled(server)) smbd_destroy(server); + if (server->ssocket) { sock_release(server->ssocket); server->ssocket = NULL; + + /* Release netns reference for the socket. */ + put_net(cifs_net_ns(server)); } if (!list_empty(&server->pending_mid_q)) { @@ -1037,6 +1041,7 @@ clean_demultiplex_info(struct TCP_Server_Info *server) */ } + /* Release netns reference for this server. */ put_net(cifs_net_ns(server)); kfree(server->leaf_fullpath); kfree(server); @@ -1713,6 +1718,8 @@ cifs_get_tcp_session(struct smb3_fs_context *ctx, tcp_ses->ops = ctx->ops; tcp_ses->vals = ctx->vals; + + /* Grab netns reference for this server. */ cifs_set_net_ns(tcp_ses, get_net(current->nsproxy->net_ns)); tcp_ses->conn_id = atomic_inc_return(&tcpSesNextId); @@ -1844,6 +1851,7 @@ smbd_connected: out_err_crypto_release: cifs_crypto_secmech_release(tcp_ses); + /* Release netns reference for this server. */ put_net(cifs_net_ns(tcp_ses)); out_err: @@ -1852,8 +1860,10 @@ out_err: cifs_put_tcp_session(tcp_ses->primary_server, false); kfree(tcp_ses->hostname); kfree(tcp_ses->leaf_fullpath); - if (tcp_ses->ssocket) + if (tcp_ses->ssocket) { sock_release(tcp_ses->ssocket); + put_net(cifs_net_ns(tcp_ses)); + } kfree(tcp_ses); } return ERR_PTR(rc); @@ -2532,9 +2542,6 @@ cifs_put_tcon(struct cifs_tcon *tcon, enum smb3_tcon_ref_trace trace) list_del_init(&tcon->tcon_list); tcon->status = TID_EXITING; -#ifdef CONFIG_CIFS_DFS_UPCALL - list_replace_init(&tcon->dfs_ses_list, &ses_list); -#endif spin_unlock(&tcon->tc_lock); spin_unlock(&cifs_tcp_ses_lock); @@ -2542,6 +2549,7 @@ cifs_put_tcon(struct cifs_tcon *tcon, enum smb3_tcon_ref_trace trace) cancel_delayed_work_sync(&tcon->query_interfaces); #ifdef CONFIG_CIFS_DFS_UPCALL cancel_delayed_work_sync(&tcon->dfs_cache_work); + list_replace_init(&tcon->dfs_ses_list, &ses_list); #endif if (tcon->use_witness) { @@ -3133,20 +3141,20 @@ generic_ip_connect(struct TCP_Server_Info *server) socket = server->ssocket; } else { struct net *net = cifs_net_ns(server); - struct sock *sk; - rc = __sock_create(net, sfamily, SOCK_STREAM, - IPPROTO_TCP, &server->ssocket, 1); + rc = sock_create_kern(net, sfamily, SOCK_STREAM, IPPROTO_TCP, &server->ssocket); if (rc < 0) { cifs_server_dbg(VFS, "Error %d creating socket\n", rc); return rc; } - sk = server->ssocket->sk; - __netns_tracker_free(net, &sk->ns_tracker, false); - sk->sk_net_refcnt = 1; - get_net_track(net, &sk->ns_tracker, GFP_KERNEL); - sock_inuse_add(net, 1); + /* + * Grab netns reference for the socket. + * + * It'll be released here, on error, or in clean_demultiplex_info() upon server + * teardown. + */ + get_net(net); /* BB other socket options to set KEEPALIVE, NODELAY? */ cifs_dbg(FYI, "Socket created\n"); @@ -3160,8 +3168,10 @@ generic_ip_connect(struct TCP_Server_Info *server) } rc = bind_socket(server); - if (rc < 0) + if (rc < 0) { + put_net(cifs_net_ns(server)); return rc; + } /* * Eventually check for other socket options to change from @@ -3198,6 +3208,7 @@ generic_ip_connect(struct TCP_Server_Info *server) if (rc < 0) { cifs_dbg(FYI, "Error %d connecting to server\n", rc); trace_smb3_connect_err(server->hostname, server->conn_id, &server->dstaddr, rc); + put_net(cifs_net_ns(server)); sock_release(socket); server->ssocket = NULL; return rc; @@ -3206,6 +3217,9 @@ generic_ip_connect(struct TCP_Server_Info *server) if (sport == htons(RFC1001_PORT)) rc = ip_rfc1001_connect(server); + if (rc < 0) + put_net(cifs_net_ns(server)); + return rc; } diff --git a/fs/smb/client/inode.c b/fs/smb/client/inode.c index 42c030687918..f146e06c97eb 100644 --- a/fs/smb/client/inode.c +++ b/fs/smb/client/inode.c @@ -746,6 +746,88 @@ static int cifs_sfu_mode(struct cifs_fattr *fattr, const unsigned char *path, #endif } +#define POSIX_TYPE_FILE 0 +#define POSIX_TYPE_DIR 1 +#define POSIX_TYPE_SYMLINK 2 +#define POSIX_TYPE_CHARDEV 3 +#define POSIX_TYPE_BLKDEV 4 +#define POSIX_TYPE_FIFO 5 +#define POSIX_TYPE_SOCKET 6 + +#define POSIX_X_OTH 0000001 +#define POSIX_W_OTH 0000002 +#define POSIX_R_OTH 0000004 +#define POSIX_X_GRP 0000010 +#define POSIX_W_GRP 0000020 +#define POSIX_R_GRP 0000040 +#define POSIX_X_USR 0000100 +#define POSIX_W_USR 0000200 +#define POSIX_R_USR 0000400 +#define POSIX_STICKY 0001000 +#define POSIX_SET_GID 0002000 +#define POSIX_SET_UID 0004000 + +#define POSIX_OTH_MASK 0000007 +#define POSIX_GRP_MASK 0000070 +#define POSIX_USR_MASK 0000700 +#define POSIX_PERM_MASK 0000777 +#define POSIX_FILETYPE_MASK 0070000 + +#define POSIX_FILETYPE_SHIFT 12 + +static u32 wire_perms_to_posix(u32 wire) +{ + u32 mode = 0; + + mode |= (wire & POSIX_X_OTH) ? S_IXOTH : 0; + mode |= (wire & POSIX_W_OTH) ? S_IWOTH : 0; + mode |= (wire & POSIX_R_OTH) ? S_IROTH : 0; + mode |= (wire & POSIX_X_GRP) ? S_IXGRP : 0; + mode |= (wire & POSIX_W_GRP) ? S_IWGRP : 0; + mode |= (wire & POSIX_R_GRP) ? S_IRGRP : 0; + mode |= (wire & POSIX_X_USR) ? S_IXUSR : 0; + mode |= (wire & POSIX_W_USR) ? S_IWUSR : 0; + mode |= (wire & POSIX_R_USR) ? S_IRUSR : 0; + mode |= (wire & POSIX_STICKY) ? S_ISVTX : 0; + mode |= (wire & POSIX_SET_GID) ? S_ISGID : 0; + mode |= (wire & POSIX_SET_UID) ? S_ISUID : 0; + + return mode; +} + +static u32 posix_filetypes[] = { + S_IFREG, + S_IFDIR, + S_IFLNK, + S_IFCHR, + S_IFBLK, + S_IFIFO, + S_IFSOCK +}; + +static u32 wire_filetype_to_posix(u32 wire_type) +{ + if (wire_type >= ARRAY_SIZE(posix_filetypes)) { + pr_warn("Unexpected type %u", wire_type); + return 0; + } + return posix_filetypes[wire_type]; +} + +umode_t wire_mode_to_posix(u32 wire, bool is_dir) +{ + u32 wire_type; + u32 mode; + + wire_type = (wire & POSIX_FILETYPE_MASK) >> POSIX_FILETYPE_SHIFT; + /* older servers do not set POSIX file type in the mode field in the response */ + if ((wire_type == 0) && is_dir) + mode = wire_perms_to_posix(wire) | S_IFDIR; + else + mode = (wire_perms_to_posix(wire) | wire_filetype_to_posix(wire_type)); + return (umode_t)mode; +} + /* Fill a cifs_fattr struct with info from POSIX info struct */ static void smb311_posix_info_to_fattr(struct cifs_fattr *fattr, struct cifs_open_info_data *data, @@ -782,20 +864,14 @@ static void smb311_posix_info_to_fattr(struct cifs_fattr *fattr, fattr->cf_bytes = le64_to_cpu(info->AllocationSize); fattr->cf_createtime = le64_to_cpu(info->CreationTime); fattr->cf_nlink = le32_to_cpu(info->HardLinks); - fattr->cf_mode = (umode_t) le32_to_cpu(info->Mode); + fattr->cf_mode = wire_mode_to_posix(le32_to_cpu(info->Mode), + fattr->cf_cifsattrs & ATTR_DIRECTORY); if (cifs_open_data_reparse(data) && cifs_reparse_point_to_fattr(cifs_sb, fattr, data)) goto out_reparse; - fattr->cf_mode &= ~S_IFMT; - if (fattr->cf_cifsattrs & ATTR_DIRECTORY) { - fattr->cf_mode |= S_IFDIR; - fattr->cf_dtype = DT_DIR; - } else { /* file */ - fattr->cf_mode |= S_IFREG; - fattr->cf_dtype = DT_REG; - } + fattr->cf_dtype = S_DT(fattr->cf_mode); out_reparse: if (S_ISLNK(fattr->cf_mode)) { @@ -1871,6 +1947,7 @@ int cifs_unlink(struct inode *dir, struct dentry *dentry) goto unlink_out; } + netfs_wait_for_outstanding_io(inode); cifs_close_deferred_file_under_dentry(tcon, full_path); #ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY if (cap_unix(tcon->ses) && (CIFS_UNIX_POSIX_PATH_OPS_CAP & @@ -2388,8 +2465,10 @@ cifs_rename2(struct mnt_idmap *idmap, struct inode *source_dir, } cifs_close_deferred_file_under_dentry(tcon, from_name); - if (d_inode(target_dentry) != NULL) + if (d_inode(target_dentry) != NULL) { + netfs_wait_for_outstanding_io(d_inode(target_dentry)); cifs_close_deferred_file_under_dentry(tcon, to_name); + } rc = cifs_do_rename(xid, source_dentry, from_name, target_dentry, to_name); diff --git a/fs/smb/client/readdir.c b/fs/smb/client/readdir.c index b3a8f9c6fcff..273358d20a46 100644 --- a/fs/smb/client/readdir.c +++ b/fs/smb/client/readdir.c @@ -71,6 +71,8 @@ cifs_prime_dcache(struct dentry *parent, struct qstr *name, struct inode *inode; struct super_block *sb = parent->d_sb; struct cifs_sb_info *cifs_sb = CIFS_SB(sb); + bool posix = cifs_sb_master_tcon(cifs_sb)->posix_extensions; + bool reparse_need_reval = false; DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq); int rc; @@ -85,7 +87,21 @@ cifs_prime_dcache(struct dentry *parent, struct qstr *name, * this spares us an invalidation. */ retry: - if ((fattr->cf_cifsattrs & ATTR_REPARSE) || + if (posix) { + switch (fattr->cf_mode & S_IFMT) { + case S_IFLNK: + case S_IFBLK: + case S_IFCHR: + reparse_need_reval = true; + break; + default: + break; + } + } else if (fattr->cf_cifsattrs & ATTR_REPARSE) { + reparse_need_reval = true; + } + + if (reparse_need_reval || (fattr->cf_flags & CIFS_FATTR_NEED_REVAL)) return; @@ -241,31 +257,29 @@ cifs_posix_to_fattr(struct cifs_fattr *fattr, struct smb2_posix_info *info, fattr->cf_nlink = le32_to_cpu(info->HardLinks); fattr->cf_cifsattrs = le32_to_cpu(info->DosAttributes); - /* - * Since we set the inode type below we need to mask off - * to avoid strange results if bits set above. - * XXX: why not make server&client use the type bits? - */ - fattr->cf_mode = le32_to_cpu(info->Mode) & ~S_IFMT; + if (fattr->cf_cifsattrs & ATTR_REPARSE) + fattr->cf_cifstag = le32_to_cpu(info->ReparseTag); + + /* The Mode field in the response can now include the file type as well */ + fattr->cf_mode = wire_mode_to_posix(le32_to_cpu(info->Mode), + fattr->cf_cifsattrs & ATTR_DIRECTORY); + fattr->cf_dtype = S_DT(le32_to_cpu(info->Mode)); + + switch (fattr->cf_mode & S_IFMT) { + case S_IFLNK: + case S_IFBLK: + case S_IFCHR: + fattr->cf_flags |= CIFS_FATTR_NEED_REVAL; + break; + default: + break; + } cifs_dbg(FYI, "posix fattr: dev %d, reparse %d, mode %o\n", le32_to_cpu(info->DeviceId), le32_to_cpu(info->ReparseTag), le32_to_cpu(info->Mode)); - if (fattr->cf_cifsattrs & ATTR_DIRECTORY) { - fattr->cf_mode |= S_IFDIR; - fattr->cf_dtype = DT_DIR; - } else { - /* - * mark anything that is not a dir as regular - * file. special files should have the REPARSE - * attribute and will be marked as needing revaluation - */ - fattr->cf_mode |= S_IFREG; - fattr->cf_dtype = DT_REG; - } - sid_to_id(cifs_sb, &parsed.owner, fattr, SIDOWNER); sid_to_id(cifs_sb, &parsed.group, fattr, SIDGROUP); } diff --git a/fs/smb/client/reparse.c b/fs/smb/client/reparse.c index e81d2d78ddb7..d88b41133e00 100644 --- a/fs/smb/client/reparse.c +++ b/fs/smb/client/reparse.c @@ -676,7 +676,7 @@ static int parse_reparse_wsl_symlink(struct reparse_wsl_symlink_data_buffer *buf return -ENOMEM; symname_utf16_len = utf8s_to_utf16s(buf->PathBuffer, symname_utf8_len, UTF16_LITTLE_ENDIAN, - symname_utf16, symname_utf8_len * 2); + (wchar_t *) symname_utf16, symname_utf8_len * 2); if (symname_utf16_len < 0) { kfree(symname_utf16); return symname_utf16_len; @@ -803,44 +803,60 @@ out: fattr->cf_dtype = S_DT(fattr->cf_mode); } -bool cifs_reparse_point_to_fattr(struct cifs_sb_info *cifs_sb, - struct cifs_fattr *fattr, - struct cifs_open_info_data *data) +static bool posix_reparse_to_fattr(struct cifs_sb_info *cifs_sb, + struct cifs_fattr *fattr, + struct cifs_open_info_data *data) { struct reparse_posix_data *buf = data->reparse.posix; - u32 tag = data->reparse.tag; - if (tag == IO_REPARSE_TAG_NFS && buf) { - if (le16_to_cpu(buf->ReparseDataLength) < sizeof(buf->InodeType)) + + if (buf == NULL) + return true; + + if (le16_to_cpu(buf->ReparseDataLength) < sizeof(buf->InodeType)) { + WARN_ON_ONCE(1); + return false; + } + + switch (le64_to_cpu(buf->InodeType)) { + case NFS_SPECFILE_CHR: + if (le16_to_cpu(buf->ReparseDataLength) != sizeof(buf->InodeType) + 8) { + WARN_ON_ONCE(1); return false; - switch (le64_to_cpu(buf->InodeType)) { - case NFS_SPECFILE_CHR: - if (le16_to_cpu(buf->ReparseDataLength) != sizeof(buf->InodeType) + 8) - return false; - fattr->cf_mode |= S_IFCHR; - fattr->cf_rdev = reparse_mkdev(buf->DataBuffer); - break; - case NFS_SPECFILE_BLK: - if (le16_to_cpu(buf->ReparseDataLength) != sizeof(buf->InodeType) + 8) - return false; - fattr->cf_mode |= S_IFBLK; - fattr->cf_rdev = reparse_mkdev(buf->DataBuffer); - break; - case NFS_SPECFILE_FIFO: - fattr->cf_mode |= S_IFIFO; - break; - case NFS_SPECFILE_SOCK: - fattr->cf_mode |= S_IFSOCK; - break; - case NFS_SPECFILE_LNK: - fattr->cf_mode |= S_IFLNK; - break; - default: + } + fattr->cf_mode |= S_IFCHR; + fattr->cf_rdev = reparse_mkdev(buf->DataBuffer); + break; + case NFS_SPECFILE_BLK: + if (le16_to_cpu(buf->ReparseDataLength) != sizeof(buf->InodeType) + 8) { WARN_ON_ONCE(1); return false; } - goto out; + fattr->cf_mode |= S_IFBLK; + fattr->cf_rdev = reparse_mkdev(buf->DataBuffer); + break; + case NFS_SPECFILE_FIFO: + fattr->cf_mode |= S_IFIFO; + break; + case NFS_SPECFILE_SOCK: + fattr->cf_mode |= S_IFSOCK; + break; + case NFS_SPECFILE_LNK: + fattr->cf_mode |= S_IFLNK; + break; + default: + WARN_ON_ONCE(1); + return false; } + return true; +} + +bool cifs_reparse_point_to_fattr(struct cifs_sb_info *cifs_sb, + struct cifs_fattr *fattr, + struct cifs_open_info_data *data) +{ + u32 tag = data->reparse.tag; + bool ok; switch (tag) { case IO_REPARSE_TAG_INTERNAL: @@ -860,15 +876,19 @@ bool cifs_reparse_point_to_fattr(struct cifs_sb_info *cifs_sb, case IO_REPARSE_TAG_LX_BLK: wsl_to_fattr(data, cifs_sb, tag, fattr); break; + case IO_REPARSE_TAG_NFS: + ok = posix_reparse_to_fattr(cifs_sb, fattr, data); + if (!ok) + return false; + break; case 0: /* SMB1 symlink */ case IO_REPARSE_TAG_SYMLINK: - case IO_REPARSE_TAG_NFS: fattr->cf_mode |= S_IFLNK; break; default: return false; } -out: + fattr->cf_dtype = S_DT(fattr->cf_mode); return true; } diff --git a/fs/smb/client/sess.c b/fs/smb/client/sess.c index 0bb77f9ec686..3306fb655136 100644 --- a/fs/smb/client/sess.c +++ b/fs/smb/client/sess.c @@ -488,11 +488,11 @@ cifs_ses_add_channel(struct cifs_ses *ses, if (iface->sockaddr.ss_family == AF_INET) cifs_dbg(FYI, "adding channel to ses %p (speed:%zu bps rdma:%s ip:%pI4)\n", - ses, iface->speed, iface->rdma_capable ? "yes" : "no", + ses, iface->speed, str_yes_no(iface->rdma_capable), &ipv4->sin_addr); else cifs_dbg(FYI, "adding channel to ses %p (speed:%zu bps rdma:%s ip:%pI6)\n", - ses, iface->speed, iface->rdma_capable ? "yes" : "no", + ses, iface->speed, str_yes_no(iface->rdma_capable), &ipv6->sin6_addr); /* diff --git a/fs/smb/client/smb2inode.c b/fs/smb/client/smb2inode.c index a188908914fe..a55f0044d30b 100644 --- a/fs/smb/client/smb2inode.c +++ b/fs/smb/client/smb2inode.c @@ -943,7 +943,8 @@ int smb2_query_path_info(const unsigned int xid, if (rc || !data->reparse_point) goto out; - cmds[num_cmds++] = SMB2_OP_QUERY_WSL_EA; + if (!tcon->posix_extensions) + cmds[num_cmds++] = SMB2_OP_QUERY_WSL_EA; /* * Skip SMB2_OP_GET_REPARSE if symlink already parsed in create * response. diff --git a/fs/smb/client/smb2pdu.c b/fs/smb/client/smb2pdu.c index 010eae9d6c47..959359301250 100644 --- a/fs/smb/client/smb2pdu.c +++ b/fs/smb/client/smb2pdu.c @@ -4840,6 +4840,8 @@ smb2_writev_callback(struct mid_q_entry *mid) if (written > wdata->subreq.len) written &= 0xFFFF; + cifs_stats_bytes_written(tcon, written); + if (written < wdata->subreq.len) wdata->result = -ENOSPC; else @@ -5156,6 +5158,7 @@ replay_again: cifs_dbg(VFS, "Send error in write = %d\n", rc); } else { *nbytes = le32_to_cpu(rsp->DataLength); + cifs_stats_bytes_written(io_parms->tcon, *nbytes); trace_smb3_write_done(0, 0, xid, req->PersistentFileId, io_parms->tcon->tid, @@ -6204,7 +6207,7 @@ SMB2_lease_break(const unsigned int xid, struct cifs_tcon *tcon, req->StructureSize = cpu_to_le16(36); total_len += 12; - memcpy(req->LeaseKey, lease_key, 16); + memcpy(req->LeaseKey, lease_key, SMB2_LEASE_KEY_SIZE); req->LeaseState = lease_state; flags |= CIFS_NO_RSP_BUF; |