int rpc_nfs2_statfs_async(struct rpc_context *rpc, rpc_cb cb, struct STATFS2args *args, void *private_data)
{
struct rpc_pdu *pdu;
pdu = rpc_allocate_pdu(rpc, NFS_PROGRAM, NFS_V2, NFS2_STATFS, cb, private_data, (zdrproc_t)zdr_STATFS2res, sizeof(STATFS2res));
if (pdu == NULL) {
rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for NFS2/STATFS call");
return -1;
}
if (zdr_STATFS2args(&pdu->zdr, args) == 0) {
rpc_set_error(rpc, "ZDR error: Failed to encode STATFS2args");
rpc_free_pdu(rpc, pdu);
return -2;
}
if (rpc_queue_pdu(rpc, pdu) != 0) {
rpc_set_error(rpc, "Out of memory. Failed to queue pdu for NFS2/STATFS call");
rpc_free_pdu(rpc, pdu);
return -3;
}
return 0;
}
int rpc_nfs3_remove_async(struct rpc_context *rpc, rpc_cb cb, struct REMOVE3args *args, void *private_data)
{
struct rpc_pdu *pdu;
pdu = rpc_allocate_pdu(rpc, NFS_PROGRAM, NFS_V3, NFS3_REMOVE, cb, private_data, (zdrproc_t)zdr_REMOVE3res, sizeof(REMOVE3res));
if (pdu == NULL) {
rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for NFS3/REMOVE call");
return -1;
}
if (zdr_REMOVE3args(&pdu->zdr, args) == 0) {
rpc_set_error(rpc, "ZDR error: Failed to encode REMOVE3args");
rpc_free_pdu(rpc, pdu);
return -2;
}
if (rpc_queue_pdu(rpc, pdu) != 0) {
rpc_set_error(rpc, "Out of memory. Failed to queue pdu for NFS3/REMOVE call");
rpc_free_pdu(rpc, pdu);
return -3;
}
return 0;
}
int rpc_nfsacl_setacl_async(struct rpc_context *rpc, rpc_cb cb, struct SETACL3args *args, void *private_data)
{
struct rpc_pdu *pdu;
pdu = rpc_allocate_pdu(rpc, NFSACL_PROGRAM, NFSACL_V3, NFSACL3_SETACL, cb, private_data, (zdrproc_t)zdr_SETACL3res, sizeof(SETACL3res));
if (pdu == NULL) {
rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for nfsacl/setacl call");
return -1;
}
if (zdr_SETACL3args(&pdu->zdr, args) == 0) {
rpc_set_error(rpc, "ZDR error: Failed to encode SETACL3args");
rpc_free_pdu(rpc, pdu);
return -2;
}
if (rpc_queue_pdu(rpc, pdu) != 0) {
rpc_set_error(rpc, "Out of memory. Failed to queue pdu for nfsacl/setacl call");
rpc_free_pdu(rpc, pdu);
return -2;
}
return 0;
}
int rpc_nfs2_write_async(struct rpc_context *rpc, rpc_cb cb, struct WRITE2args *args, void *private_data)
{
struct rpc_pdu *pdu;
pdu = rpc_allocate_pdu2(rpc, NFS_PROGRAM, NFS_V2, NFS2_WRITE, cb, private_data, (zdrproc_t)zdr_WRITE2res, sizeof(WRITE2res), args->totalcount);
if (pdu == NULL) {
rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for NFS2/WRITE call");
return -1;
}
if (zdr_WRITE2args(&pdu->zdr, args) == 0) {
rpc_set_error(rpc, "ZDR error: Failed to encode WRITE2args");
rpc_free_pdu(rpc, pdu);
return -2;
}
if (rpc_queue_pdu(rpc, pdu) != 0) {
rpc_set_error(rpc, "Out of memory. Failed to queue pdu for NFS2/WRITE call");
rpc_free_pdu(rpc, pdu);
return -3;
}
return 0;
}
int rpc_nlm4_cancel_async(struct rpc_context *rpc, rpc_cb cb, struct NLM4_CANCargs *args, void *private_data)
{
struct rpc_pdu *pdu;
pdu = rpc_allocate_pdu(rpc, NLM_PROGRAM, NLM_V4, NLM4_CANCEL, cb, private_data, (xdrproc_t)xdr_NLM4_CANCres, sizeof(NLM4_CANCres));
if (pdu == NULL) {
rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for nlm/cancel call");
return -1;
}
if (xdr_NLM4_CANCargs(&pdu->xdr, args) == 0) {
rpc_set_error(rpc, "XDR error: Failed to encode NLM4_CANCargs");
rpc_free_pdu(rpc, pdu);
return -2;
}
if (rpc_queue_pdu(rpc, pdu) != 0) {
rpc_set_error(rpc, "Out of memory. Failed to queue pdu for nlm/cancel call");
rpc_free_pdu(rpc, pdu);
return -1;
}
return 0;
}
int rpc_nlm4_unlock_async(struct rpc_context *rpc, rpc_cb cb, struct NLM4_UNLOCKargs *args, void *private_data)
{
struct rpc_pdu *pdu;
pdu = rpc_allocate_pdu(rpc, NLM_PROGRAM, NLM_V4, NLM4_UNLOCK, cb, private_data, (zdrproc_t)zdr_NLM4_UNLOCKres, sizeof(NLM4_UNLOCKres));
if (pdu == NULL) {
rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for nlm/unlock call");
return -1;
}
if (zdr_NLM4_UNLOCKargs(&pdu->zdr, args) == 0) {
rpc_set_error(rpc, "ZDR error: Failed to encode NLM4_UNLOCKargs");
rpc_free_pdu(rpc, pdu);
return -2;
}
if (rpc_queue_pdu(rpc, pdu) != 0) {
rpc_set_error(rpc, "Out of memory. Failed to queue pdu for nlm/unlock call");
rpc_free_pdu(rpc, pdu);
return -1;
}
return 0;
}
int rpc_rquota1_null_async(struct rpc_context *rpc, rpc_cb cb, void *private_data)
{
struct rpc_pdu *pdu;
pdu = rpc_allocate_pdu(rpc, RQUOTA_PROGRAM, RQUOTA_V1, RQUOTA1_NULL, cb, private_data, (xdrproc_t)xdr_void, 0);
if (pdu == NULL) {
rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for rquota1/null call");
return -1;
}
if (rpc_queue_pdu(rpc, pdu) != 0) {
rpc_set_error(rpc, "Out of memory. Failed to queue pdu for rquota1/null call");
rpc_free_pdu(rpc, pdu);
return -2;
}
return 0;
}
int rpc_nfsacl_null_async(struct rpc_context *rpc, rpc_cb cb, void *private_data)
{
struct rpc_pdu *pdu;
pdu = rpc_allocate_pdu(rpc, NFSACL_PROGRAM, NFSACL_V3, NFSACL3_NULL, cb, private_data, (xdrproc_t)xdr_void, 0);
if (pdu == NULL) {
rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for nfsacl/null call");
return -1;
}
if (rpc_queue_pdu(rpc, pdu) != 0) {
rpc_set_error(rpc, "Out of memory. Failed to queue pdu for nfsacl/null call");
rpc_free_pdu(rpc, pdu);
return -2;
}
return 0;
}
int rpc_pmap_null_async(struct rpc_context *rpc, rpc_cb cb, void *private_data)
{
struct rpc_pdu *pdu;
pdu = rpc_allocate_pdu(rpc, PMAP_PROGRAM, PMAP_V2, PMAP_NULL, cb, private_data, (xdrproc_t)xdr_void, 0);
if (pdu == NULL) {
rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for portmap/null call");
return -1;
}
if (rpc_queue_pdu(rpc, pdu) != 0) {
rpc_set_error(rpc, "Out of memory. Failed to queue pdu for portmap/null call");
rpc_free_pdu(rpc, pdu);
return -1;
}
return 0;
}
int rpc_nlm4_null_async(struct rpc_context *rpc, rpc_cb cb, void *private_data)
{
struct rpc_pdu *pdu;
pdu = rpc_allocate_pdu(rpc, NLM_PROGRAM, NLM_V4, NLM4_NULL, cb, private_data, (zdrproc_t)zdr_void, 0);
if (pdu == NULL) {
rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for nlm/null call");
return -1;
}
if (rpc_queue_pdu(rpc, pdu) != 0) {
rpc_set_error(rpc, "Out of memory. Failed to queue pdu for nlm/null call");
rpc_free_pdu(rpc, pdu);
return -1;
}
return 0;
}
int rpc_process_pdu(struct rpc_context *rpc, char *buf, int size)
{
struct rpc_pdu *pdu, *prev_pdu;
struct rpc_queue *q;
ZDR zdr;
int pos, recordmarker = 0;
unsigned int hash;
uint32_t xid;
char *reasbuf = NULL;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
memset(&zdr, 0, sizeof(ZDR));
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;
if (total < fragment->size) {
rpc_set_error(rpc, "Fragments too large");
rpc_free_all_fragments(rpc);
return -1;
}
}
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);
}
if (rpc->is_server_context) {
int ret;
ret = rpc_process_call(rpc, &zdr);
zdr_destroy(&zdr);
if (reasbuf != NULL) {
free(reasbuf);
}
return ret;
}
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;
}
zdr_setpos(&zdr, pos);
/* Look up the transaction in a hash table of our requests */
hash = rpc_hash_xid(xid);
q = &rpc->waitpdu[hash];
/* Follow the hash chain. Linear traverse singly-linked list,
* but track previous entry for optimised removal */
prev_pdu = NULL;
for (pdu=q->head; pdu; pdu=pdu->next) {
if (pdu->xid != xid) {
prev_pdu = pdu;
continue;
}
if (rpc->is_udp == 0 || rpc->is_broadcast == 0) {
/* Singly-linked but we track head and tail */
if (pdu == q->head)
q->head = pdu->next;
if (pdu == q->tail)
q->tail = prev_pdu;
if (prev_pdu != NULL)
prev_pdu->next = pdu->next;
rpc->waitpdu_len--;
}
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);
}
return 0;
}
zdr_destroy(&zdr);
if (reasbuf != NULL) {
free(reasbuf);
}
return 0;
}