diff options
Diffstat (limited to 'fs/cifs/smb2pdu.c')
| -rw-r--r-- | fs/cifs/smb2pdu.c | 41 |
1 files changed, 40 insertions, 1 deletions
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index 97edb4d376cd..5531e7ee1210 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -238,6 +238,18 @@ smb2_reconnect(__le16 smb2_command, struct cifs_tcon *tcon) * the same SMB session */ mutex_lock(&tcon->ses->session_mutex); + + /* + * Recheck after acquire mutex. If another thread is negotiating + * and the server never sends an answer the socket will be closed + * and tcpStatus set to reconnect. + */ + if (server->tcpStatus == CifsNeedReconnect) { + rc = -EHOSTDOWN; + mutex_unlock(&tcon->ses->session_mutex); + goto out; + } + rc = cifs_negotiate_protocol(0, tcon->ses); if (!rc && tcon->ses->need_reconnect) rc = cifs_setup_session(0, tcon->ses, nls_codepage); @@ -514,7 +526,12 @@ SMB2_negotiate(const unsigned int xid, struct cifs_ses *ses) * No tcon so can't do * cifs_stats_inc(&tcon->stats.smb2_stats.smb2_com_fail[SMB2...]); */ - if (rc != 0) + if (rc == -EOPNOTSUPP) { + cifs_dbg(VFS, "Dialect not supported by server. Consider " + "specifying vers=1.0 or vers=2.1 on mount for accessing" + " older servers\n"); + goto neg_exit; + } else if (rc != 0) goto neg_exit; cifs_dbg(FYI, "mode 0x%x\n", rsp->SecurityMode); @@ -2140,6 +2157,18 @@ qinf_exit: return rc; } +int SMB2_query_eas(const unsigned int xid, struct cifs_tcon *tcon, + u64 persistent_fid, u64 volatile_fid, + struct smb2_file_full_ea_info *data) +{ + return query_info(xid, tcon, persistent_fid, volatile_fid, + FILE_FULL_EA_INFORMATION, SMB2_O_INFO_FILE, 0, + SMB2_MAX_EA_BUF, + sizeof(struct smb2_file_full_ea_info), + (void **)&data, + NULL); +} + int SMB2_query_info(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid, u64 volatile_fid, struct smb2_file_all_info *data) { @@ -3180,6 +3209,16 @@ SMB2_set_acl(const unsigned int xid, struct cifs_tcon *tcon, } int +SMB2_set_ea(const unsigned int xid, struct cifs_tcon *tcon, + u64 persistent_fid, u64 volatile_fid, + struct smb2_file_full_ea_info *buf, int len) +{ + return send_set_info(xid, tcon, persistent_fid, volatile_fid, + current->tgid, FILE_FULL_EA_INFORMATION, SMB2_O_INFO_FILE, + 0, 1, (void **)&buf, &len); +} + +int SMB2_oplock_break(const unsigned int xid, struct cifs_tcon *tcon, const u64 persistent_fid, const u64 volatile_fid, __u8 oplock_level) |