You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
+#ifdef WIN32
+#include "win32_compat.h"
+#ifndef MSG_DONTWAIT
+#define MSG_DONTWAIT 0
+#endif
+#else
+#include <strings.h>
+#endif/*WIN32*/
#include <stdio.h>
-#include <strings.h>
#include <stdlib.h>
-#include <rpc/rpc.h>
-#include <rpc/xdr.h>
-#include <rpc/rpc_msg.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <errno.h>
#include "slist.h"
+#include "libnfs-zdr.h"
#include "libnfs.h"
#include "libnfs-raw.h"
#include "libnfs-private.h"
-struct rpc_pdu *rpc_allocate_pdu(struct rpc_context *rpc, int program, int version, int procedure, rpc_cb cb, void *private_data, xdrproc_t xdr_decode_fn, int xdr_decode_bufsize)
+struct rpc_pdu *rpc_allocate_pdu(struct rpc_context *rpc, int program, int version, int procedure, rpc_cb cb, void *private_data, zdrproc_t zdr_decode_fn, int zdr_decode_bufsize)
{
struct rpc_pdu *pdu;
struct rpc_msg msg;
if (rpc == NULL) {
- printf("trying to allocate rpc pdu on NULL context\n");
return NULL;
}
pdu = malloc(sizeof(struct rpc_pdu));
if (pdu == NULL) {
- printf("Failed to allocate pdu structure\n");
+ rpc_set_error(rpc, "Out of memory: Failed to allocate pdu structure");
return NULL;
}
- bzero(pdu, sizeof(struct rpc_pdu));
+ memset(pdu, 0, sizeof(struct rpc_pdu));
pdu->xid = rpc->xid++;
pdu->cb = cb;
pdu->private_data = private_data;
- pdu->xdr_decode_fn = xdr_decode_fn;
- pdu->xdr_decode_bufsize = xdr_decode_bufsize;
+ pdu->zdr_decode_fn = zdr_decode_fn;
+ pdu->zdr_decode_bufsize = zdr_decode_bufsize;
- xdrmem_create(&pdu->xdr, rpc->encodebuf, rpc->encodebuflen, XDR_ENCODE);
- xdr_setpos(&pdu->xdr, 4); /* skip past the record marker */
+ zdrmem_create(&pdu->zdr, rpc->encodebuf, rpc->encodebuflen, ZDR_ENCODE);
+ if (rpc->is_udp == 0) {
+ zdr_setpos(&pdu->zdr, 4); /* skip past the record marker */
+ }
- bzero(&msg, sizeof(struct rpc_msg));
+ memset(&msg, 0, sizeof(struct rpc_msg));
msg.rm_xid = pdu->xid;
msg.rm_direction = CALL;
msg.rm_call.cb_rpcvers = RPC_MSG_VERSION;
msg.rm_call.cb_cred = rpc->auth->ah_cred;
msg.rm_call.cb_verf = rpc->auth->ah_verf;
- if (xdr_callmsg(&pdu->xdr, &msg) == 0) {
- printf("xdr_callmsg failed\n");
- xdr_destroy(&pdu->xdr);
+ if (zdr_callmsg(&pdu->zdr, &msg) == 0) {
+ rpc_set_error(rpc, "zdr_callmsg failed");
+ zdr_destroy(&pdu->zdr);
free(pdu);
return NULL;
}
pdu->outdata.data = NULL;
}
- if (pdu->xdr_decode_buf != NULL) {
- xdr_free(pdu->xdr_decode_fn, pdu->xdr_decode_buf);
- free(pdu->xdr_decode_buf);
- pdu->xdr_decode_buf = NULL;
+ if (pdu->zdr_decode_buf != NULL) {
+ zdr_free(pdu->zdr_decode_fn, pdu->zdr_decode_buf);
+ free(pdu->zdr_decode_buf);
+ pdu->zdr_decode_buf = NULL;
}
- xdr_destroy(&pdu->xdr);
+ zdr_destroy(&pdu->zdr);
+
free(pdu);
}
{
int size, recordmarker;
- size = xdr_getpos(&pdu->xdr);
+ size = zdr_getpos(&pdu->zdr);
+
+ /* for udp we dont queue, we just send it straight away */
+ if (rpc->is_udp != 0) {
+// XXX add a rpc->udp_dest_sock_size and get rid of sys/socket.h and netinet/in.h
+ if (sendto(rpc->fd, rpc->encodebuf, size, MSG_DONTWAIT, rpc->udp_dest, sizeof(struct sockaddr_in)) < 0) {
+ rpc_set_error(rpc, "Sendto failed with errno %s", strerror(errno));
+ rpc_free_pdu(rpc, pdu);
+ return -1;
+ }
+ SLIST_ADD_END(&rpc->waitpdu, pdu);
+ return 0;
+ }
/* write recordmarker */
- xdr_setpos(&pdu->xdr, 0);
+ zdr_setpos(&pdu->zdr, 0);
recordmarker = (size - 4) | 0x80000000;
- xdr_int(&pdu->xdr, &recordmarker);
+ zdr_int(&pdu->zdr, &recordmarker);
pdu->outdata.size = size;
pdu->outdata.data = malloc(pdu->outdata.size);
size = ntohl(*(uint32_t *)buf);
- if ((size & 0x80000000) == 0) {
- printf("cant handle oncrpc fragments\n");
- return -1;
- }
-
return (size & 0x7fffffff) + 4;
}
-static int rpc_process_reply(struct rpc_context *rpc, struct rpc_pdu *pdu, XDR *xdr)
+static int rpc_process_reply(struct rpc_context *rpc, struct rpc_pdu *pdu, ZDR *zdr)
{
struct rpc_msg msg;
- bzero(&msg, sizeof(struct rpc_msg));
+ memset(&msg, 0, sizeof(struct rpc_msg));
msg.acpted_rply.ar_verf = _null_auth;
- if (pdu->xdr_decode_bufsize > 0) {
- pdu->xdr_decode_buf = malloc(pdu->xdr_decode_bufsize);
- if (pdu->xdr_decode_buf == NULL) {
- printf("xdr_replymsg failed in portmap_getport_reply\n");
- pdu->cb(rpc, RPC_STATUS_ERROR, "Failed to allocate buffer for decoding of XDR reply", pdu->private_data);
+ if (pdu->zdr_decode_bufsize > 0) {
+ if (pdu->zdr_decode_buf != NULL) {
+ free(pdu->zdr_decode_buf);
+ }
+ pdu->zdr_decode_buf = malloc(pdu->zdr_decode_bufsize);
+ if (pdu->zdr_decode_buf == NULL) {
+ rpc_set_error(rpc, "zdr_replymsg failed in portmap_getport_reply");
+ pdu->cb(rpc, RPC_STATUS_ERROR, "Failed to allocate buffer for decoding of ZDR reply", pdu->private_data);
return 0;
}
- bzero(pdu->xdr_decode_buf, pdu->xdr_decode_bufsize);
+ memset(pdu->zdr_decode_buf, 0, pdu->zdr_decode_bufsize);
}
- msg.acpted_rply.ar_results.where = pdu->xdr_decode_buf;
- msg.acpted_rply.ar_results.proc = pdu->xdr_decode_fn;
+ msg.acpted_rply.ar_results.where = pdu->zdr_decode_buf;
+ msg.acpted_rply.ar_results.proc = pdu->zdr_decode_fn;
- if (xdr_replymsg(xdr, &msg) == 0) {
- printf("xdr_replymsg failed in portmap_getport_reply\n");
+ if (zdr_replymsg(zdr, &msg) == 0) {
+ rpc_set_error(rpc, "zdr_replymsg failed in portmap_getport_reply");
pdu->cb(rpc, RPC_STATUS_ERROR, "Message rejected by server", pdu->private_data);
- if (pdu->xdr_decode_buf != NULL) {
- free(pdu->xdr_decode_buf);
- pdu->xdr_decode_buf = NULL;
+ if (pdu->zdr_decode_buf != NULL) {
+ free(pdu->zdr_decode_buf);
+ pdu->zdr_decode_buf = NULL;
}
return 0;
}
}
switch (msg.rm_reply.rp_acpt.ar_stat) {
case SUCCESS:
- pdu->cb(rpc, RPC_STATUS_SUCCESS, pdu->xdr_decode_buf, pdu->private_data);
+ pdu->cb(rpc, RPC_STATUS_SUCCESS, pdu->zdr_decode_buf, pdu->private_data);
break;
case PROG_UNAVAIL:
pdu->cb(rpc, RPC_STATUS_ERROR, "Server responded: Program not available", pdu->private_data);
int rpc_process_pdu(struct rpc_context *rpc, char *buf, int size)
{
struct rpc_pdu *pdu;
- XDR xdr;
- int pos, recordmarker;
+ ZDR zdr;
+ int pos, recordmarker = 0;
unsigned int xid;
+ char *reasbuf = NULL;
- bzero(&xdr, sizeof(XDR));
+ memset(&zdr, 0, sizeof(ZDR));
- xdrmem_create(&xdr, buf, size, XDR_DECODE);
- if (xdr_int(&xdr, &recordmarker) == 0) {
- printf("xdr_int reading recordmarker failed\n");
- xdr_destroy(&xdr);
- return -1;
+ zdrmem_create(&zdr, buf, size, ZDR_DECODE);
+ if (rpc->is_udp == 0) {
+ if (zdr_int(&zdr, &recordmarker) == 0) {
+ rpc_set_error(rpc, "zdr_int reading recordmarker failed");
+ zdr_destroy(&zdr);
+ return -1;
+ }
+ if (!(recordmarker&0x80000000)) {
+ zdr_destroy(&zdr);
+ if (rpc_add_fragment(rpc, buf+4, size-4) != 0) {
+ rpc_set_error(rpc, "Failed to queue fragment for reassembly.");
+ return -1;
+ }
+ return 0;
+ }
+ }
+
+ /* reassembly */
+ if (recordmarker != 0 && rpc->fragments != NULL) {
+ struct rpc_fragment *fragment;
+ uint32_t total = size - 4;
+ char *ptr;
+
+ zdr_destroy(&zdr);
+ for (fragment = rpc->fragments; fragment; fragment = fragment->next) {
+ total += fragment->size;
+ }
+
+ reasbuf = malloc(total);
+ if (reasbuf == NULL) {
+ rpc_set_error(rpc, "Failed to reassemble PDU");
+ rpc_free_all_fragments(rpc);
+ return -1;
+ }
+ ptr = reasbuf;
+ for (fragment = rpc->fragments; fragment; fragment = fragment->next) {
+ memcpy(ptr, fragment->data, fragment->size);
+ ptr += fragment->size;
+ }
+ memcpy(ptr, buf + 4, size - 4);
+ zdrmem_create(&zdr, reasbuf, total, ZDR_DECODE);
+ rpc_free_all_fragments(rpc);
}
- pos = xdr_getpos(&xdr);
- if (xdr_int(&xdr, (int *)&xid) == 0) {
- printf("xdr_int reading xid failed\n");
- xdr_destroy(&xdr);
+
+ pos = zdr_getpos(&zdr);
+ if (zdr_int(&zdr, (int *)&xid) == 0) {
+ rpc_set_error(rpc, "zdr_int reading xid failed");
+ zdr_destroy(&zdr);
+ if (reasbuf != NULL) {
+ free(reasbuf);
+ }
return -1;
}
- xdr_setpos(&xdr, pos);
+ zdr_setpos(&zdr, pos);
for (pdu=rpc->waitpdu; pdu; pdu=pdu->next) {
if (pdu->xid != xid) {
continue;
}
- SLIST_REMOVE(&rpc->waitpdu, pdu);
- if (rpc_process_reply(rpc, pdu, &xdr) != 0) {
- printf("rpc_procdess_reply failed\n");
+ if (rpc->is_udp == 0 || rpc->is_broadcast == 0) {
+ SLIST_REMOVE(&rpc->waitpdu, pdu);
+ }
+ if (rpc_process_reply(rpc, pdu, &zdr) != 0) {
+ rpc_set_error(rpc, "rpc_procdess_reply failed");
+ }
+ zdr_destroy(&zdr);
+ if (rpc->is_udp == 0 || rpc->is_broadcast == 0) {
+ rpc_free_pdu(rpc, pdu);
+ }
+ if (reasbuf != NULL) {
+ free(reasbuf);
}
- xdr_destroy(&xdr);
- rpc_free_pdu(rpc, pdu);
return 0;
}
- printf("No matching pdu found for xid:%d\n", xid);
- xdr_destroy(&xdr);
+ rpc_set_error(rpc, "No matching pdu found for xid:%d", xid);
+ zdr_destroy(&zdr);
+ if (reasbuf != NULL) {
+ free(reasbuf);
+ }
return -1;
}