SmbSharedFile *
smbsharedfileget(Dir *d, int p9mode, int *sharep)
{
SmbSharedFileEntry *sfe;
qlock(&sharedfiletable);
for (sfe = sharedfiletable.list; sfe; sfe = sfe->next) {
if (sfe->type == d->type && sfe->dev == d->dev && sfe->path == d->qid.path) {
if (p9denied(p9mode, sfe->share)) {
qunlock(&sharedfiletable);
return nil;
}
*sharep = sharesubtract(*sharep, sfe->share);
sfe->share = shareadd(sfe->share, *sharep);
sfe->ref++;
goto done;
}
}
sfe = smbemallocz(sizeof(SmbSharedFileEntry), 1);
sfe->type = d->type;
sfe->dev = d->dev;
sfe->path = d->qid.path;
// sfe->name = smbestrdup(name);
sfe->ref = 1;
sfe->share = *sharep;
sfe->next = sharedfiletable.list;
sharedfiletable.list = sfe;
done:
smblogprintif(smbglobals.log.sharedfiles, "smbsharedfileget: ref %d share %d\n",
sfe->ref, sfe->share);
qunlock(&sharedfiletable);
return sfe;
}
int
cifsaccept(SmbCifsSession *s, SMBCIFSWRITEFN **writep)
{
SmbSession *smbs = smbemallocz(sizeof(SmbSession), 1);
smbs->cifss = s;
s->magic = smbs;
smbs->nextcommand = SMB_COM_NO_ANDX_COMMAND;
*writep = cifswrite;
smblogprintif(smbglobals.log.sessions, "cifs session started\n");
return 1;
}
int
nbssaccept(void *v, NbSession *s, NBSSWRITEFN **writep)
{
SmbSession *smbs = smbemallocz(sizeof(SmbSession), 1);
smbs->nbss = s;
s->magic = smbs;
smbs->nextcommand = SMB_COM_NO_ANDX_COMMAND;
*writep = nbwrite;
smblogprintif(smbglobals.log.sessions, "netbios session started\n");
return 1;
}
SmbService *
smbservicefind(SmbSession *s, char *uncpath, char *servicetype,
uint8_t *errclassp,
uint16_t *errorp)
{
char *p, *q;
if ((uncpath[0] == '/' && uncpath[1] == '/')
|| (uncpath[0] == '\\' && uncpath[1] == '\\')) {
/* check that the server name matches mine */
p = uncpath + 2;
q = strchr(p, uncpath[0]);
if (q == nil)
goto bad;
*q++ = 0;
// if (cistrcmp(p, smbglobals.serverinfo.name) != 0)
// goto bad;
}
else
q = uncpath + 1;
if (strcmp(servicetype, "?????") == 0 && strcmp(q, "IPC$") == 0)
return &ipc;
if ((strcmp(servicetype, "?????") == 0 || strcmp(servicetype, "A:") == 0)) {
SmbService *serv;
if (cistrcmp(q, local.name) == 0)
return &local;
/* try the session specific list */
for (serv = s->serv; serv; serv = serv->next)
if (cistrcmp(q, serv->name) == 0)
return serv;
/* exec "9fs q" in case it invents /n/q */
for (p = q; *p; p++)
if (*p >= 'A' && *p <= 'Z')
*p = tolower(*p);
if (run9fs(q) >= 0) {
serv = smbemallocz(sizeof(*serv), 1);
serv->name = smbestrdup(q);
serv->type = smbestrdup("A:");
serv->stype = STYPE_DISKTREE;
smbstringprint(&serv->remark, "9fs %s", q);
smbstringprint(&serv->path, "/n/%s", q);
serv->next = s->serv;
s->serv = serv;
return serv;
}
}
bad:
*errclassp = ERRDOS;
*errorp = ERRbadpath;
return nil;
}
int
smbsharedfilelock(SmbSharedFile *sf, SmbSession *s, uint16_t pid,
int64_t base,
int64_t limit)
{
SmbLockListEntry smblock;
SmbLockListEntry *l, *nl, **lp;
smblock.s = s;
smblock.pid = pid;
smblock.base = base;
smblock.limit = limit;
if (sf->locklist) {
for (l = sf->locklist->head; l; l = l->next)
if (lockconflict(l, &smblock)) {
smblogprintif(smbglobals.log.locks, "smbsharedfilelock: lock [%lld, %lld) failed because conflicts with [%lld, %lld)\n",
base, limit, l->base, l->limit);
return 0;
}
}
if (sf->locklist == nil)
sf->locklist = smbemallocz(sizeof(SmbLockList), 1);
for (lp = &sf->locklist->head; (l = *lp) != nil; lp = &l->next)
if (lockorder(&smblock, l) <= 0)
break;
smblogprintif(smbglobals.log.locks, "smbsharedfilelock: lock [%lld, %lld) succeeded\n", base, limit);
nl = smbemalloc(sizeof(*nl));
*nl = smblock;
nl->next = *lp;
*lp = nl;
//{
// smblogprintif(smbglobals.log.locks,"smbsharedfilelock: list\n");
// for (l = sf->locklist->head; l; l = l->next)
// smblogprintif(smbglobals.log.locks, "smbsharedfilelock: [%lld, %lld)\n", l->base, l->limit);
//}
return 1;
}
void *
smbemalloc(ulong size)
{
return smbemallocz(size, 0);
}
