/*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2000-2001 Boris Popov * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ /* * Two levels of connection hierarchy */ #define SMBL_SM 0 #define SMBL_VC 1 #define SMBL_SHARE 2 #define SMBL_NUM 3 #define SMBL_NONE (-1) #define SMB_CS_NONE 0x0000 #define SMB_CS_UPPER 0x0001 /* convert passed string to upper case */ #define SMB_CS_LOWER 0x0002 /* convert passed string to lower case */ /* * Common object flags */ #define SMBO_GONE 0x1000000 /* * access modes */ #define SMBM_READ 0400 /* read conn attrs.(like list shares) */ #define SMBM_WRITE 0200 /* modify conn attrs */ #define SMBM_EXEC 0100 /* can send SMB requests */ #define SMBM_READGRP 0040 #define SMBM_WRITEGRP 0020 #define SMBM_EXECGRP 0010 #define SMBM_READOTH 0004 #define SMBM_WRITEOTH 0002 #define SMBM_EXECOTH 0001 #define SMBM_MASK 0777 #define SMBM_EXACT 010000 /* check for specified mode exactly */ #define SMBM_ALL (SMBM_READ | SMBM_WRITE | SMBM_EXEC) #define SMBM_DEFAULT (SMBM_READ | SMBM_WRITE | SMBM_EXEC) #define SMBM_ANY_OWNER ((uid_t)-1) #define SMBM_ANY_GROUP ((gid_t)-1) /* * VC flags */ #define SMBV_PERMANENT 0x0002 #define SMBV_LONGNAMES 0x0004 /* connection is configured to use long names */ #define SMBV_ENCRYPT 0x0008 /* server asked for encrypted password */ #define SMBV_WIN95 0x0010 /* used to apply bugfixes for this OS */ #define SMBV_PRIVATE 0x0020 /* connection can be used only by creator */ #define SMBV_RECONNECTING 0x0040 /* conn is in the process of reconnection */ #define SMBV_SINGLESHARE 0x0080 /* only one share connecting should be allowed */ #define SMBV_CREATE 0x0100 /* lookup for create operation */ /*#define SMBV_FAILED 0x0200*/ /* last reconnect attempt has failed */ #define SMBV_UNICODE 0x0400 /* connection is configured to use Unicode */ /* * smb_share flags */ #define SMBS_PERMANENT 0x0001 #define SMBS_RECONNECTING 0x0002 #define SMBS_CONNECTED 0x0004 /* * share types */ #define SMB_ST_DISK 0x0 /* A: */ #define SMB_ST_PRINTER 0x1 /* LPT: */ #define SMB_ST_PIPE 0x2 /* IPC */ #define SMB_ST_COMM 0x3 /* COMM */ #define SMB_ST_ANY 0x4 #define SMB_ST_MAX 0x4 #define SMB_ST_NONE 0xff /* not a part of protocol */ /* * Negotiated protocol parameters */ struct smb_sopt { int sv_proto; int16_t sv_tz; /* offset in min relative to UTC */ u_int32_t sv_maxtx; /* maximum transmit buf size */ u_char sv_sm; /* security mode */ u_int16_t sv_maxmux; /* max number of outstanding rq's */ u_int16_t sv_maxvcs; /* max number of VCs */ u_int16_t sv_rawmode; u_int32_t sv_maxraw; /* maximum raw-buffer size */ u_int32_t sv_skey; /* session key */ u_int32_t sv_caps; /* capabilities SMB_CAP_ */ }; /* * network IO daemon states */ enum smbiod_state { SMBIOD_ST_NOTCONN, /* no connect request was made */ SMBIOD_ST_RECONNECT, /* a [re]connect attempt is in progress */ SMBIOD_ST_TRANACTIVE, /* transport level is up */ SMBIOD_ST_VCACTIVE, /* session established */ SMBIOD_ST_DEAD /* connection broken, transport is down */ }; /* * Info structures */ #define SMB_INFO_NONE 0 #define SMB_INFO_VC 2 #define SMB_INFO_SHARE 3 struct smb_vc_info { int itype; int usecount; uid_t uid; /* user id of connection */ gid_t gid; /* group of connection */ mode_t mode; /* access mode */ int flags; enum smbiod_state iodstate; struct smb_sopt sopt; char srvname[SMB_MAXSRVNAMELEN + 1]; char vcname[128]; }; struct smb_share_info { int itype; int usecount; u_short tid; /* TID */ int type; /* share type */ uid_t uid; /* user id of connection */ gid_t gid; /* group of connection */ mode_t mode; /* access mode */ int flags; char sname[128]; }; #ifdef _KERNEL #include #include #include #include #include #define CONNADDREQ(a1,a2) ((a1)->sa_len == (a2)->sa_len && \ bcmp(a1, a2, (a1)->sa_len) == 0) struct smb_vc; struct smb_share; struct smb_cred; struct smb_rq; struct mbdata; struct smbioc_oshare; struct smbioc_ossn; struct uio; TAILQ_HEAD(smb_rqhead, smb_rq); #define SMB_DEFRQTIMO 5 #define SMB_DIALECT(vcp) ((vcp)->vc_sopt.sv_proto) struct smb_tran_desc; /* * Connection object */ struct smb_connobj; typedef void smb_co_gone_t (struct smb_connobj *cp, struct smb_cred *scred); typedef void smb_co_free_t (struct smb_connobj *cp); struct smb_connobj { struct cv co_lock; struct thread *co_locker; struct sx co_interlock; int co_lockcnt; int co_level; /* SMBL_ */ int co_flags; int co_usecount; struct smb_connobj * co_parent; SLIST_HEAD(,smb_connobj)co_children; SLIST_ENTRY(smb_connobj)co_next; smb_co_gone_t * co_gone; smb_co_free_t * co_free; }; #define SMBCO_FOREACH(var, cp) SLIST_FOREACH((var), &(cp)->co_children, co_next) /* * Virtual Circuit (session) to a server. * This is the most (over)complicated part of SMB protocol. * For the user security level (usl), each session with different remote * user name has its own VC. * It is unclear however, should share security level (ssl) allow additional * VCs, because user name is not used and can be the same. On other hand, * multiple VCs allows us to create separate sessions to server on a per * user basis. */ /* * This lock protects vc_flags */ #define SMBC_ST_LOCK(vcp) smb_sl_lock(&(vcp)->vc_stlock) #define SMBC_ST_UNLOCK(vcp) smb_sl_unlock(&(vcp)->vc_stlock) struct smb_vc { struct smb_connobj obj; char * vc_srvname; struct sockaddr*vc_paddr; /* server addr */ struct sockaddr*vc_laddr; /* local addr, if any */ char * vc_username; char * vc_pass; /* password for usl case */ char * vc_domain; /* workgroup/primary domain */ u_int vc_timo; /* default request timeout */ int vc_maxvcs; /* maximum number of VC per connection */ void * vc_tolower; /* local charset */ void * vc_toupper; /* local charset */ void * vc_toserver; /* local charset to server one */ void * vc_tolocal; /* server charset to local one */ void * vc_cp_toserver; /* local charset to server one (using CodePage) */ void * vc_cp_tolocal; /* server charset to local one (using CodePage) */ void * vc_ucs_toserver; /* local charset to server one (using UCS-2) */ void * vc_ucs_tolocal; /* server charset to local one (using UCS-2) */ int vc_number; /* number of this VC from the client side */ int vc_genid; uid_t vc_uid; /* user id of connection */ gid_t vc_grp; /* group of connection */ mode_t vc_mode; /* access mode */ u_short vc_smbuid; /* unique vc id assigned by server */ u_char vc_hflags; /* or'ed with flags in the smb header */ u_short vc_hflags2; /* or'ed with flags in the smb header */ void * vc_tdata; /* transport control block */ struct smb_tran_desc *vc_tdesc; int vc_chlen; /* actual challenge length */ u_char vc_ch[SMB_MAXCHALLENGELEN]; u_short vc_mid; /* multiplex id */ struct smb_sopt vc_sopt; /* server options */ int vc_txmax; /* max tx/rx packet size */ int vc_rxmax; /* max readx data size */ int vc_wxmax; /* max writex data size */ struct smbiod * vc_iod; struct smb_slock vc_stlock; u_int32_t vc_seqno; /* my next sequence number */ u_int8_t *vc_mackey; /* MAC key */ int vc_mackeylen; /* length of MAC key */ }; #define vc_maxmux vc_sopt.sv_maxmux #define vc_flags obj.co_flags #define SMB_UNICODE_STRINGS(vcp) ((vcp)->vc_hflags2 & SMB_FLAGS2_UNICODE) #define SMB_UNICODE_NAME "UCS-2LE" /* * smb_share structure describes connection to the given SMB share (tree). * Connection to share is always built on top of the VC. */ /* * This lock protects ss_flags */ #define SMBS_ST_LOCK(ssp) smb_sl_lock(&(ssp)->ss_stlock) #define SMBS_ST_LOCKPTR(ssp) (&(ssp)->ss_stlock) #define SMBS_ST_UNLOCK(ssp) smb_sl_unlock(&(ssp)->ss_stlock) struct smb_share { struct smb_connobj obj; char * ss_name; u_short ss_tid; /* TID */ int ss_type; /* share type */ uid_t ss_uid; /* user id of connection */ gid_t ss_grp; /* group of connection */ mode_t ss_mode; /* access mode */ int ss_vcgenid; char * ss_pass; /* password to a share, can be null */ struct smb_slock ss_stlock; }; #define ss_flags obj.co_flags #define CPTOVC(cp) ((struct smb_vc*)(cp)) #define VCTOCP(vcp) (&(vcp)->obj) #define CPTOSS(cp) ((struct smb_share*)(cp)) #define SSTOVC(ssp) CPTOVC(((ssp)->obj.co_parent)) #define SSTOCP(ssp) (&(ssp)->obj) struct smb_vcspec { char * srvname; struct sockaddr*sap; struct sockaddr*lap; int flags; char * username; char * pass; char * domain; mode_t mode; mode_t rights; uid_t owner; gid_t group; char * localcs; char * servercs; struct smb_sharespec *shspec; struct smb_share *ssp; /* returned */ /* * The rest is an internal data */ struct smb_cred *scred; }; struct smb_sharespec { char * name; char * pass; mode_t mode; mode_t rights; uid_t owner; gid_t group; int stype; /* * The rest is an internal data */ struct smb_cred *scred; }; /* * Session level functions */ int smb_sm_init(void); int smb_sm_done(void); int smb_sm_lookup(struct smb_vcspec *vcspec, struct smb_sharespec *shspec, struct smb_cred *scred, struct smb_vc **vcpp); /* * Connection object */ void smb_co_ref(struct smb_connobj *cp); void smb_co_rele(struct smb_connobj *cp, struct smb_cred *scred); int smb_co_get(struct smb_connobj *cp, struct smb_cred *scred); void smb_co_put(struct smb_connobj *cp, struct smb_cred *scred); int smb_co_lock(struct smb_connobj *cp); void smb_co_unlock(struct smb_connobj *cp); /* * session level functions */ int smb_vc_create(struct smb_vcspec *vcspec, struct smb_cred *scred, struct smb_vc **vcpp); int smb_vc_connect(struct smb_vc *vcp, struct smb_cred *scred); int smb_vc_access(struct smb_vc *vcp, struct smb_cred *scred, mode_t mode); int smb_vc_get(struct smb_vc *vcp, struct smb_cred *scred); void smb_vc_put(struct smb_vc *vcp, struct smb_cred *scred); void smb_vc_ref(struct smb_vc *vcp); void smb_vc_rele(struct smb_vc *vcp, struct smb_cred *scred); int smb_vc_lock(struct smb_vc *vcp); void smb_vc_unlock(struct smb_vc *vcp); int smb_vc_lookupshare(struct smb_vc *vcp, struct smb_sharespec *shspec, struct smb_cred *scred, struct smb_share **sspp); const char * smb_vc_getpass(struct smb_vc *vcp); u_short smb_vc_nextmid(struct smb_vc *vcp); /* * share level functions */ int smb_share_create(struct smb_vc *vcp, struct smb_sharespec *shspec, struct smb_cred *scred, struct smb_share **sspp); int smb_share_access(struct smb_share *ssp, struct smb_cred *scred, mode_t mode); void smb_share_ref(struct smb_share *ssp); void smb_share_rele(struct smb_share *ssp, struct smb_cred *scred); int smb_share_get(struct smb_share *ssp, struct smb_cred *scred); void smb_share_put(struct smb_share *ssp, struct smb_cred *scred); int smb_share_lock(struct smb_share *ssp); void smb_share_unlock(struct smb_share *ssp); void smb_share_invalidate(struct smb_share *ssp); int smb_share_valid(struct smb_share *ssp); const char * smb_share_getpass(struct smb_share *ssp); /* * SMB protocol level functions */ int smb_smb_negotiate(struct smb_vc *vcp, struct smb_cred *scred); int smb_smb_ssnsetup(struct smb_vc *vcp, struct smb_cred *scred); int smb_smb_ssnclose(struct smb_vc *vcp, struct smb_cred *scred); int smb_smb_treeconnect(struct smb_share *ssp, struct smb_cred *scred); int smb_smb_treedisconnect(struct smb_share *ssp, struct smb_cred *scred); int smb_read(struct smb_share *ssp, u_int16_t fid, struct uio *uio, struct smb_cred *scred); int smb_write(struct smb_share *ssp, u_int16_t fid, struct uio *uio, struct smb_cred *scred); int smb_smb_echo(struct smb_vc *vcp, struct smb_cred *scred); /* * smbiod thread */ #define SMBIOD_EV_NEWRQ 0x0001 #define SMBIOD_EV_SHUTDOWN 0x0002 #define SMBIOD_EV_CONNECT 0x0003 #define SMBIOD_EV_DISCONNECT 0x0004 #define SMBIOD_EV_TREECONNECT 0x0005 #define SMBIOD_EV_MASK 0x00ff #define SMBIOD_EV_SYNC 0x0100 #define SMBIOD_EV_PROCESSING 0x0200 struct smbiod_event { int ev_type; int ev_error; void * ev_ident; STAILQ_ENTRY(smbiod_event) ev_link; }; #define SMBIOD_SHUTDOWN 0x0001 struct smbiod { int iod_id; int iod_flags; enum smbiod_state iod_state; int iod_muxcnt; /* number of active outstanding requests */ int iod_sleeptimo; struct smb_vc * iod_vc; struct smb_slock iod_rqlock; /* iod_rqlist, iod_muxwant */ struct smb_rqhead iod_rqlist; /* list of outstanding requests */ int iod_muxwant; struct proc * iod_p; struct thread * iod_td; struct smb_cred iod_scred; struct smb_slock iod_evlock; /* iod_evlist */ STAILQ_HEAD(,smbiod_event) iod_evlist; struct timespec iod_lastrqsent; struct timespec iod_pingtimo; }; int smb_iod_init(void); int smb_iod_done(void); int smb_iod_create(struct smb_vc *vcp); int smb_iod_destroy(struct smbiod *iod); int smb_iod_request(struct smbiod *iod, int event, void *ident); int smb_iod_addrq(struct smb_rq *rqp); int smb_iod_waitrq(struct smb_rq *rqp); int smb_iod_removerq(struct smb_rq *rqp); #endif /* _KERNEL */