static int
sysctlfs_domount(struct puffs_usermount *pu)
{
struct puffs_pathobj *po_root;
struct puffs_node *pn_root;
struct timeval tv_now;
rn.myid = 2;
rn.sysctl_flags = CTLTYPE_NODE;
gettimeofday(&tv_now, NULL);
TIMEVAL_TO_TIMESPEC(&tv_now, &fstime);
pn_root = puffs_pn_new(pu, &rn);
assert(pn_root != NULL);
puffs_setroot(pu, pn_root);
po_root = puffs_getrootpathobj(pu);
po_root->po_path = &sname_root;
po_root->po_len = 0;
fileuid = geteuid();
filegid = getegid();
if (fileuid == 0)
fileperms = 0755;
else
fileperms = 0555;
return 0;
}
int
main(int argc, char *argv[])
{
extern char *optarg;
extern int optind;
struct puffs_usermount *pu;
struct puffs_pathobj *po_root;
struct puffs_ops *pops;
struct timespec ts;
const char *typename;
char *rtstr;
mntoptparse_t mp;
int pflags, detach, mntflags;
int ch;
int khashbuckets;
int maxreqsize;
setprogname(argv[0]);
rtstr = NULL;
detach = 1;
mntflags = 0;
khashbuckets = 256;
pflags = PUFFS_KFLAG_IAONDEMAND;
typename = FSNAME;
maxreqsize = MAXREQMAGIC;
gdtm.dtm_allowprot = VM_PROT_ALL;
while ((ch = getopt(argc, argv, "bc:dfilm:n:o:p:r:st")) != -1) {
switch (ch) {
case 'b': /* build paths, for debugging the feature */
pflags |= PUFFS_FLAG_BUILDPATH;
break;
case 'c':
khashbuckets = atoi(optarg);
break;
case 'd':
dynamicfh = 1;
break;
case 'f':
pflags |= PUFFS_KFLAG_LOOKUP_FULLPNBUF;
break;
case 'i':
pflags &= ~PUFFS_KFLAG_IAONDEMAND;
break;
case 'l':
straightflush = 1;
break;
case 'm':
maxreqsize = atoi(optarg);
break;
case 'n':
typename = optarg;
break;
case 'o':
mp = getmntopts(optarg, puffsmopts, &mntflags, &pflags);
if (mp == NULL)
err(1, "getmntopts");
freemntopts(mp);
break;
case 'p':
gdtm.dtm_allowprot = atoi(optarg);
if ((gdtm.dtm_allowprot | VM_PROT_ALL) != VM_PROT_ALL)
usage();
break;
case 'r':
rtstr = optarg;
break;
case 's': /* stay on top */
detach = 0;
break;
case 't':
pflags |= PUFFS_KFLAG_WTCACHE;
break;
default:
usage();
/*NOTREACHED*/
}
}
if (pflags & PUFFS_FLAG_OPDUMP)
detach = 0;
argc -= optind;
argv += optind;
if (argc != 2)
usage();
PUFFSOP_INIT(pops);
PUFFSOP_SET(pops, dtfs, fs, statvfs);
PUFFSOP_SET(pops, dtfs, fs, unmount);
PUFFSOP_SETFSNOP(pops, sync);
PUFFSOP_SET(pops, dtfs, fs, fhtonode);
PUFFSOP_SET(pops, dtfs, fs, nodetofh);
PUFFSOP_SET(pops, dtfs, node, lookup);
PUFFSOP_SET(pops, dtfs, node, access);
PUFFSOP_SET(pops, puffs_genfs, node, getattr);
PUFFSOP_SET(pops, dtfs, node, setattr);
PUFFSOP_SET(pops, dtfs, node, create);
PUFFSOP_SET(pops, dtfs, node, remove);
PUFFSOP_SET(pops, dtfs, node, readdir);
PUFFSOP_SET(pops, dtfs, node, poll);
PUFFSOP_SET(pops, dtfs, node, mmap);
PUFFSOP_SET(pops, dtfs, node, mkdir);
PUFFSOP_SET(pops, dtfs, node, rmdir);
PUFFSOP_SET(pops, dtfs, node, rename);
PUFFSOP_SET(pops, dtfs, node, read);
PUFFSOP_SET(pops, dtfs, node, write);
PUFFSOP_SET(pops, dtfs, node, link);
PUFFSOP_SET(pops, dtfs, node, symlink);
PUFFSOP_SET(pops, dtfs, node, readlink);
PUFFSOP_SET(pops, dtfs, node, mknod);
PUFFSOP_SET(pops, dtfs, node, inactive);
PUFFSOP_SET(pops, dtfs, node, pathconf);
PUFFSOP_SET(pops, dtfs, node, reclaim);
srandom(time(NULL)); /* for random generation numbers */
pu = puffs_init(pops, _PATH_PUFFS, typename, &gdtm, pflags);
if (pu == NULL)
err(1, "init");
gpu = pu;
puffs_setfhsize(pu, sizeof(struct dtfs_fid),
PUFFS_FHFLAG_NFSV2 | PUFFS_FHFLAG_NFSV3
| (dynamicfh ? PUFFS_FHFLAG_DYNAMIC : 0));
puffs_setncookiehash(pu, khashbuckets);
if (signal(SIGALRM, wipe_the_sleep_out_of_my_eyes) == SIG_ERR)
warn("cannot set alarm sighandler");
/* init */
if (dtfs_domount(pu, rtstr) != 0)
errx(1, "dtfs_domount failed");
po_root = puffs_getrootpathobj(pu);
po_root->po_path = argv[0];
po_root->po_len = strlen(argv[0]);
/* often enough for testing poll */
ts.tv_sec = 1;
ts.tv_nsec = 0;
puffs_ml_setloopfn(pu, loopfun);
puffs_ml_settimeout(pu, &ts);
if (maxreqsize != MAXREQMAGIC)
puffs_setmaxreqlen(pu, maxreqsize);
puffs_set_errnotify(pu, puffs_kernerr_abort);
if (detach)
if (puffs_daemon(pu, 1, 1) == -1)
err(1, "puffs_daemon");
if (puffs_mount(pu, argv[1], mntflags, puffs_getroot(pu)) == -1)
err(1, "mount");
if (puffs_mainloop(pu) == -1)
err(1, "mainloop");
return 0;
}
int
psshfs_handshake(struct puffs_usermount *pu, int fd)
{
struct psshfs_ctx *pctx = puffs_getspecific(pu);
struct puffs_framebuf *pb;
struct puffs_pathobj *po_root;
struct puffs_node *pn_root;
struct vattr va, *rva;
const struct extunit *extu;
char *rootpath;
char *ext, *val;
uint32_t count;
int rv, done;
pb = psbuf_makeout();
psbuf_put_1(pb, SSH_FXP_INIT);
psbuf_put_4(pb, SFTP_PROTOVERSION);
DO_IO(psbuf_write, pu, pb, fd, &done, rv);
puffs_framebuf_recycle(pb);
DO_IO(psbuf_read, pu, pb, fd, &done, rv);
if (psbuf_get_type(pb) != SSH_FXP_VERSION)
reterr((stderr, "invalid server response: %d",
psbuf_get_type(pb)), EPROTO);
pctx->protover = psbuf_get_reqid(pb);
/*
* Check out which extensions are available. Currently
* we are only interested in the openssh statvfs extension.
*/
for (;;) {
if (psbuf_get_str(pb, &ext, NULL) != 0)
break;
if (psbuf_get_str(pb, &val, NULL) != 0)
break;
for (extu = exttable; extu->ext; extu++)
if (strcmp(ext, extu->ext) == 0
&& strcmp(val, extu->val) == 0)
pctx->extensions |= extu->extflag;
}
/* scope out our rootpath */
psbuf_recycleout(pb);
psbuf_put_1(pb, SSH_FXP_REALPATH);
psbuf_put_4(pb, NEXTREQ(pctx));
psbuf_put_str(pb, pctx->mountpath);
DO_IO(psbuf_write, pu, pb, fd, &done, rv);
puffs_framebuf_recycle(pb);
DO_IO(psbuf_read, pu, pb, fd, &done, rv);
if (psbuf_get_type(pb) != SSH_FXP_NAME)
reterr((stderr, "invalid server realpath response for \"%s\"",
pctx->mountpath), EPROTO);
if (psbuf_get_4(pb, &count) == -1)
reterr((stderr, "invalid realpath response: count"), EPROTO);
if (psbuf_get_str(pb, &rootpath, NULL) == -1)
reterr((stderr, "invalid realpath response: rootpath"), EPROTO);
/* stat the rootdir so that we know it's a dir */
psbuf_recycleout(pb);
psbuf_req_str(pb, SSH_FXP_LSTAT, NEXTREQ(pctx), rootpath);
DO_IO(psbuf_write, pu, pb, fd, &done, rv);
puffs_framebuf_recycle(pb);
DO_IO(psbuf_read, pu, pb, fd, &done, rv);
rv = psbuf_expect_attrs(pb, &va);
if (rv)
reterr((stderr, "couldn't stat rootpath"), rv);
puffs_framebuf_destroy(pb);
if (puffs_mode2vt(va.va_mode) != VDIR)
reterr((stderr, "remote path (%s) not a directory", rootpath),
ENOTDIR);
pn_root = puffs_getroot(pu);
rva = &pn_root->pn_va;
puffs_setvattr(rva, &va);
po_root = puffs_getrootpathobj(pu);
if (po_root == NULL)
err(1, "getrootpathobj");
po_root->po_path = rootpath;
po_root->po_len = strlen(rootpath);
return 0;
}
int
main(int argc, char *argv[])
{
struct puffs_usermount *pu;
struct puffs_ops *pops;
struct puffs_pathobj *po_root;
struct puffs_node *pn_root;
struct stat sb;
int mntflags, pflags;
int ch;
int detach;
setprogname(argv[0]);
if (argc < 3)
usage();
pflags = mntflags = 0;
detach = 1;
while ((ch = getopt(argc, argv, "o:s")) != -1) {
switch (ch) {
case 'o':
getmntopts(optarg, puffsmopts, &mntflags, &pflags);
break;
case 's':
detach = 0;
break;
}
}
pflags |= PUFFS_FLAG_BUILDPATH;
argv += optind;
argc -= optind;
if (pflags & PUFFS_FLAG_OPDUMP)
detach = 0;
if (argc != 2)
usage();
if (lstat(argv[0], &sb) == -1)
err(1, "stat %s", argv[0]);
if ((sb.st_mode & S_IFDIR) == 0)
errx(1, "%s is not a directory", argv[0]);
PUFFSOP_INIT(pops);
puffs_null_setops(pops);
if ((pu = puffs_init(pops, argv[0], "pnullfs", NULL, pflags)) == NULL)
err(1, "init");
pn_root = puffs_pn_new(pu, NULL);
if (pn_root == NULL)
err(1, "puffs_pn_new");
puffs_setroot(pu, pn_root);
puffs_setfhsize(pu, 0, PUFFS_FHFLAG_PASSTHROUGH);
po_root = puffs_getrootpathobj(pu);
if (po_root == NULL)
err(1, "getrootpathobj");
po_root->po_path = argv[0];
po_root->po_len = strlen(argv[0]);
puffs_stat2vattr(&pn_root->pn_va, &sb);
if (detach)
if (puffs_daemon(pu, 1, 1) == -1)
err(1, "puffs_daemon");
if (puffs_mount(pu, argv[1], mntflags, pn_root) == -1)
err(1, "puffs_mount");
if (puffs_mainloop(pu) == -1)
err(1, "mainloop");
return 0;
}
