static ssize_t write_filehandle(struct file *file, char *buf, size_t size)
{
/* request is:
* domain path maxsize
* response is
* filehandle
*
* qword quoting is used, so filehandle will be \x....
*/
char *dname, *path;
int maxsize;
char *mesg = buf;
int len;
struct auth_domain *dom;
struct knfsd_fh fh;
if (size == 0)
return -EINVAL;
if (buf[size-1] != '\n')
return -EINVAL;
buf[size-1] = 0;
dname = mesg;
len = qword_get(&mesg, dname, size);
if (len <= 0) return -EINVAL;
path = dname+len+1;
len = qword_get(&mesg, path, size);
if (len <= 0) return -EINVAL;
len = get_int(&mesg, &maxsize);
if (len)
return len;
if (maxsize < NFS_FHSIZE)
return -EINVAL;
if (maxsize > NFS3_FHSIZE)
maxsize = NFS3_FHSIZE;
if (qword_get(&mesg, mesg, size)>0)
return -EINVAL;
/* we have all the words, they are in buf.. */
dom = unix_domain_find(dname);
if (!dom)
return -ENOMEM;
len = exp_rootfh(dom, path, &fh, maxsize);
auth_domain_put(dom);
if (len)
return len;
mesg = buf; len = SIMPLE_TRANSACTION_LIMIT;
qword_addhex(&mesg, &len, (char*)&fh.fh_base, fh.fh_size);
mesg[-1] = '\n';
return mesg - buf;
}
static int
send_response(FILE *f, gss_buffer_desc *in_handle, gss_buffer_desc *in_token,
u_int32_t maj_stat, u_int32_t min_stat,
gss_buffer_desc *out_handle, gss_buffer_desc *out_token)
{
char buf[2 * TOKEN_BUF_SIZE];
char *bp = buf;
int blen = sizeof(buf);
/* XXXARG: */
int g;
printerr(1, "sending null reply\n");
qword_addhex(&bp, &blen, in_handle->value, in_handle->length);
qword_addhex(&bp, &blen, in_token->value, in_token->length);
/* For init cache, only needed for a short time */
qword_addint(&bp, &blen, time(0) + 60);
qword_adduint(&bp, &blen, maj_stat);
qword_adduint(&bp, &blen, min_stat);
qword_addhex(&bp, &blen, out_handle->value, out_handle->length);
qword_addhex(&bp, &blen, out_token->value, out_token->length);
qword_addeol(&bp, &blen);
if (blen <= 0) {
printerr(0, "WARNING: send_respsonse: message too long\n");
return -1;
}
g = open(SVCGSSD_INIT_CHANNEL, O_WRONLY);
if (g == -1) {
printerr(0, "WARNING: open %s failed: %s\n",
SVCGSSD_INIT_CHANNEL, strerror(errno));
return -1;
}
*bp = '\0';
printerr(3, "writing message: %s", buf);
if (write(g, buf, bp - buf) == -1) {
printerr(0, "WARNING: failed to write message\n");
close(g);
return -1;
}
close(g);
return 0;
}
static ssize_t write_filehandle(struct file *file, char *buf, size_t size)
{
char *dname, *path;
int uninitialized_var(maxsize);
char *mesg = buf;
int len;
struct auth_domain *dom;
struct knfsd_fh fh;
if (size == 0)
return -EINVAL;
if (buf[size-1] != '\n')
return -EINVAL;
buf[size-1] = 0;
dname = mesg;
len = qword_get(&mesg, dname, size);
if (len <= 0)
return -EINVAL;
path = dname+len+1;
len = qword_get(&mesg, path, size);
if (len <= 0)
return -EINVAL;
len = get_int(&mesg, &maxsize);
if (len)
return len;
if (maxsize < NFS_FHSIZE)
return -EINVAL;
if (maxsize > NFS3_FHSIZE)
maxsize = NFS3_FHSIZE;
if (qword_get(&mesg, mesg, size)>0)
return -EINVAL;
dom = unix_domain_find(dname);
if (!dom)
return -ENOMEM;
len = exp_rootfh(dom, path, &fh, maxsize);
auth_domain_put(dom);
if (len)
return len;
mesg = buf;
len = SIMPLE_TRANSACTION_LIMIT;
qword_addhex(&mesg, &len, (char*)&fh.fh_base, fh.fh_size);
mesg[-1] = '\n';
return mesg - buf;
}
void expkey_request(struct cache_detail *cd,
struct cache_head *h,
char **bpp, int *blen)
{
/* client fsidtype \xfsid */
struct svc_expkey *ek = container_of(h, struct svc_expkey, h);
char type[5];
qword_add(bpp, blen, ek->ek_client->name);
snprintf(type, 5, "%d", ek->ek_fsidtype);
qword_add(bpp, blen, type);
qword_addhex(bpp, blen, (char*)ek->ek_fsid, key_len(ek->ek_fsidtype));
(*bpp)[-1] = '\n';
}
