* possible, maximum 16 steps). There is no clearing of ".."'s inside the
* path, so please DON'T DO THAT. thx. */
+/* NOTE 4: NFSv3 support added by Guillaume GARDET, 2016-June-20.
+ * NFSv2 is still used by default. But if server does not support NFSv2, then
+ * NFSv3 is used, if available on NFS server. */
+
#include <common.h>
#include <command.h>
#include <net.h>
static int nfs_len;
static ulong nfs_timeout = NFS_TIMEOUT;
-static char dirfh[NFS_FHSIZE]; /* file handle of directory */
-static char filefh[NFS_FHSIZE]; /* file handle of kernel image */
+static char dirfh[NFS_FHSIZE]; /* NFSv2 / NFSv3 file handle of directory */
+static char filefh[NFS3_FHSIZE]; /* NFSv2 / NFSv3 file handle */
+static int filefh3_length; /* (variable) length of filefh when NFSv3 */
static enum net_loop_state nfs_download_state;
static struct in_addr nfs_server_ip;
static char *nfs_path;
static char nfs_path_buff[2048];
+#define NFSV2_FLAG 1
+#define NFSV3_FLAG 1 << 1
+static char supported_nfs_versions = NFSV2_FLAG | NFSV3_FLAG;
+
static inline int store_block(uchar *src, unsigned offset, unsigned len)
{
ulong newsize = offset + len;
**************************************************************************/
static uint32_t *rpc_add_credentials(uint32_t *p)
{
- int hl;
- int hostnamelen;
- char hostname[256];
-
- strcpy(hostname, "");
- hostnamelen = strlen(hostname);
-
/* Here's the executive summary on authentication requirements of the
* various NFS server implementations: Linux accepts both AUTH_NONE
* and AUTH_UNIX authentication (also accepts an empty hostname field
* it (if the BOOTP/DHCP reply didn't give one, just use an empty
* hostname). */
- hl = (hostnamelen + 3) & ~3;
-
/* Provide an AUTH_UNIX credential. */
*p++ = htonl(1); /* AUTH_UNIX */
- *p++ = htonl(hl+20); /* auth length */
- *p++ = htonl(0); /* stamp */
- *p++ = htonl(hostnamelen); /* hostname string */
- if (hostnamelen & 3)
- *(p + hostnamelen / 4) = 0; /* add zero padding */
- memcpy(p, hostname, hostnamelen);
- p += hl / 4;
+ *p++ = htonl(20); /* auth length */
+ *p++ = 0; /* stamp */
+ *p++ = 0; /* hostname string */
*p++ = 0; /* uid */
*p++ = 0; /* gid */
*p++ = 0; /* auxiliary gid list */
**************************************************************************/
static void rpc_req(int rpc_prog, int rpc_proc, uint32_t *data, int datalen)
{
- struct rpc_t pkt;
+ struct rpc_t rpc_pkt;
unsigned long id;
uint32_t *p;
int pktlen;
int sport;
id = ++rpc_id;
- pkt.u.call.id = htonl(id);
- pkt.u.call.type = htonl(MSG_CALL);
- pkt.u.call.rpcvers = htonl(2); /* use RPC version 2 */
- pkt.u.call.prog = htonl(rpc_prog);
- pkt.u.call.vers = htonl(2); /* portmapper is version 2 */
- pkt.u.call.proc = htonl(rpc_proc);
- p = (uint32_t *)&(pkt.u.call.data);
+ rpc_pkt.u.call.id = htonl(id);
+ rpc_pkt.u.call.type = htonl(MSG_CALL);
+ rpc_pkt.u.call.rpcvers = htonl(2); /* use RPC version 2 */
+ rpc_pkt.u.call.prog = htonl(rpc_prog);
+ switch (rpc_prog) {
+ case PROG_NFS:
+ if (supported_nfs_versions & NFSV2_FLAG)
+ rpc_pkt.u.call.vers = htonl(2); /* NFS v2 */
+ else /* NFSV3_FLAG */
+ rpc_pkt.u.call.vers = htonl(3); /* NFS v3 */
+ break;
+ case PROG_PORTMAP:
+ case PROG_MOUNT:
+ default:
+ rpc_pkt.u.call.vers = htonl(2); /* portmapper is version 2 */
+ }
+ rpc_pkt.u.call.proc = htonl(rpc_proc);
+ p = rpc_pkt.u.call.data;
if (datalen)
- memcpy((char *)p, (char *)data, datalen*sizeof(uint32_t));
+ memcpy(p, data, datalen * sizeof(uint32_t));
- pktlen = (char *)p + datalen*sizeof(uint32_t) - (char *)&pkt;
+ pktlen = (char *)p + datalen * sizeof(uint32_t) - (char *)&rpc_pkt;
memcpy((char *)net_tx_packet + net_eth_hdr_size() + IP_UDP_HDR_SIZE,
- (char *)&pkt, pktlen);
+ &rpc_pkt.u.data[0], pktlen);
if (rpc_prog == PROG_PORTMAP)
sport = SUNRPC_PORT;
data[5] = htonl(ver);
data[6] = htonl(17); /* IP_UDP */
data[7] = 0;
-
rpc_req(PROG_PORTMAP, PORTMAP_GETPORT, data, 8);
}
p = &(data[0]);
p = rpc_add_credentials(p);
- memcpy(p, filefh, NFS_FHSIZE);
- p += (NFS_FHSIZE / 4);
+ if (supported_nfs_versions & NFSV2_FLAG) {
+ memcpy(p, filefh, NFS_FHSIZE);
+ p += (NFS_FHSIZE / 4);
+ } else { /* NFSV3_FLAG */
+ *p++ = htonl(filefh3_length);
+ memcpy(p, filefh, filefh3_length);
+ p += (filefh3_length / 4);
+ }
len = (uint32_t *)p - (uint32_t *)&(data[0]);
p = &(data[0]);
p = rpc_add_credentials(p);
- memcpy(p, dirfh, NFS_FHSIZE);
- p += (NFS_FHSIZE / 4);
- *p++ = htonl(fnamelen);
- if (fnamelen & 3)
- *(p + fnamelen / 4) = 0;
- memcpy(p, fname, fnamelen);
- p += (fnamelen + 3) / 4;
-
- len = (uint32_t *)p - (uint32_t *)&(data[0]);
-
- rpc_req(PROG_NFS, NFS_LOOKUP, data, len);
+ if (supported_nfs_versions & NFSV2_FLAG) {
+ memcpy(p, dirfh, NFS_FHSIZE);
+ p += (NFS_FHSIZE / 4);
+ *p++ = htonl(fnamelen);
+ if (fnamelen & 3)
+ *(p + fnamelen / 4) = 0;
+ memcpy(p, fname, fnamelen);
+ p += (fnamelen + 3) / 4;
+
+ len = (uint32_t *)p - (uint32_t *)&(data[0]);
+
+ rpc_req(PROG_NFS, NFS_LOOKUP, data, len);
+ } else { /* NFSV3_FLAG */
+ *p++ = htonl(NFS_FHSIZE); /* Dir handle length */
+ memcpy(p, dirfh, NFS_FHSIZE);
+ p += (NFS_FHSIZE / 4);
+ *p++ = htonl(fnamelen);
+ if (fnamelen & 3)
+ *(p + fnamelen / 4) = 0;
+ memcpy(p, fname, fnamelen);
+ p += (fnamelen + 3) / 4;
+
+ len = (uint32_t *)p - (uint32_t *)&(data[0]);
+
+ rpc_req(PROG_NFS, NFS3PROC_LOOKUP, data, len);
+ }
}
/**************************************************************************
p = &(data[0]);
p = rpc_add_credentials(p);
- memcpy(p, filefh, NFS_FHSIZE);
- p += (NFS_FHSIZE / 4);
- *p++ = htonl(offset);
- *p++ = htonl(readlen);
- *p++ = 0;
+ if (supported_nfs_versions & NFSV2_FLAG) {
+ memcpy(p, filefh, NFS_FHSIZE);
+ p += (NFS_FHSIZE / 4);
+ *p++ = htonl(offset);
+ *p++ = htonl(readlen);
+ *p++ = 0;
+ } else { /* NFSV3_FLAG */
+ *p++ = htonl(filefh3_length);
+ memcpy(p, filefh, filefh3_length);
+ p += (filefh3_length / 4);
+ *p++ = htonl(0); /* offset is 64-bit long, so fill with 0 */
+ *p++ = htonl(offset);
+ *p++ = htonl(readlen);
+ *p++ = 0;
+ }
len = (uint32_t *)p - (uint32_t *)&(data[0]);
switch (nfs_state) {
case STATE_PRCLOOKUP_PROG_MOUNT_REQ:
- rpc_lookup_req(PROG_MOUNT, 1);
+ if (supported_nfs_versions & NFSV2_FLAG)
+ rpc_lookup_req(PROG_MOUNT, 1);
+ else /* NFSV3_FLAG */
+ rpc_lookup_req(PROG_MOUNT, 3);
break;
case STATE_PRCLOOKUP_PROG_NFS_REQ:
- rpc_lookup_req(PROG_NFS, 2);
+ if (supported_nfs_versions & NFSV2_FLAG)
+ rpc_lookup_req(PROG_NFS, 2);
+ else /* NFSV3_FLAG */
+ rpc_lookup_req(PROG_NFS, 3);
break;
case STATE_MOUNT_REQ:
nfs_mount_req(nfs_path);
{
struct rpc_t rpc_pkt;
- memcpy((unsigned char *)&rpc_pkt, pkt, len);
+ memcpy(&rpc_pkt.u.data[0], pkt, len);
debug("%s\n", __func__);
debug("%s\n", __func__);
- memcpy((unsigned char *)&rpc_pkt, pkt, len);
+ memcpy(&rpc_pkt.u.data[0], pkt, len);
if (ntohl(rpc_pkt.u.reply.id) > rpc_id)
return -NFS_RPC_ERR;
return -1;
fs_mounted = 1;
+ /* NFSv2 and NFSv3 use same structure */
memcpy(dirfh, rpc_pkt.u.reply.data + 1, NFS_FHSIZE);
return 0;
debug("%s\n", __func__);
- memcpy((unsigned char *)&rpc_pkt, pkt, len);
+ memcpy(&rpc_pkt.u.data[0], pkt, len);
if (ntohl(rpc_pkt.u.reply.id) > rpc_id)
return -NFS_RPC_ERR;
debug("%s\n", __func__);
- memcpy((unsigned char *)&rpc_pkt, pkt, len);
+ memcpy(&rpc_pkt.u.data[0], pkt, len);
if (ntohl(rpc_pkt.u.reply.id) > rpc_id)
return -NFS_RPC_ERR;
rpc_pkt.u.reply.astatus ||
rpc_pkt.u.reply.data[0]) {
switch (ntohl(rpc_pkt.u.reply.astatus)) {
- case 0: /* Not an error */
+ case NFS_RPC_SUCCESS: /* Not an error */
break;
- case 2: /* Remote can't support NFS version */
- printf("*** ERROR: NFS version not supported: Requested: V%d, accepted: min V%d - max V%d\n",
- 2,
- ntohl(rpc_pkt.u.reply.data[0]),
- ntohl(rpc_pkt.u.reply.data[1]));
+ case NFS_RPC_PROG_MISMATCH:
+ /* Remote can't support NFS version */
+ switch (ntohl(rpc_pkt.u.reply.data[0])) {
+ /* Minimal supported NFS version */
+ case 3:
+ debug("*** Warning: NFS version not supported: Requested: V%d, accepted: min V%d - max V%d\n",
+ (supported_nfs_versions & NFSV2_FLAG) ?
+ 2 : 3,
+ ntohl(rpc_pkt.u.reply.data[0]),
+ ntohl(rpc_pkt.u.reply.data[1]));
+ debug("Will retry with NFSv3\n");
+ /* Clear NFSV2_FLAG from supported versions */
+ supported_nfs_versions &= ~NFSV2_FLAG;
+ return -NFS_RPC_PROG_MISMATCH;
+ case 4:
+ default:
+ puts("*** ERROR: NFS version not supported");
+ debug(": Requested: V%d, accepted: min V%d - max V%d\n",
+ (supported_nfs_versions & NFSV2_FLAG) ?
+ 2 : 3,
+ ntohl(rpc_pkt.u.reply.data[0]),
+ ntohl(rpc_pkt.u.reply.data[1]));
+ puts("\n");
+ }
break;
+ case NFS_RPC_PROG_UNAVAIL:
+ case NFS_RPC_PROC_UNAVAIL:
+ case NFS_RPC_GARBAGE_ARGS:
+ case NFS_RPC_SYSTEM_ERR:
default: /* Unknown error on 'accept state' flag */
- printf("*** ERROR: accept state error (%d)\n",
- ntohl(rpc_pkt.u.reply.astatus));
+ debug("*** ERROR: accept state error (%d)\n",
+ ntohl(rpc_pkt.u.reply.astatus));
break;
}
return -1;
}
- memcpy(filefh, rpc_pkt.u.reply.data + 1, NFS_FHSIZE);
+ if (supported_nfs_versions & NFSV2_FLAG) {
+ if (((uchar *)&(rpc_pkt.u.reply.data[0]) - (uchar *)(&rpc_pkt) + NFS_FHSIZE) > len)
+ return -NFS_RPC_DROP;
+ memcpy(filefh, rpc_pkt.u.reply.data + 1, NFS_FHSIZE);
+ } else { /* NFSV3_FLAG */
+ filefh3_length = ntohl(rpc_pkt.u.reply.data[1]);
+ if (filefh3_length > NFS3_FHSIZE)
+ filefh3_length = NFS3_FHSIZE;
+ if (((uchar *)&(rpc_pkt.u.reply.data[0]) - (uchar *)(&rpc_pkt) + filefh3_length) > len)
+ return -NFS_RPC_DROP;
+ memcpy(filefh, rpc_pkt.u.reply.data + 2, filefh3_length);
+ }
return 0;
}
+static int nfs3_get_attributes_offset(uint32_t *data)
+{
+ if (data[1]) {
+ /* 'attributes_follow' flag is TRUE,
+ * so we have attributes on 21 dwords */
+ /* Skip unused values :
+ type; 32 bits value,
+ mode; 32 bits value,
+ nlink; 32 bits value,
+ uid; 32 bits value,
+ gid; 32 bits value,
+ size; 64 bits value,
+ used; 64 bits value,
+ rdev; 64 bits value,
+ fsid; 64 bits value,
+ fileid; 64 bits value,
+ atime; 64 bits value,
+ mtime; 64 bits value,
+ ctime; 64 bits value,
+ */
+ return 22;
+ } else {
+ /* 'attributes_follow' flag is FALSE,
+ * so we don't have any attributes */
+ return 1;
+ }
+}
+
static int nfs_readlink_reply(uchar *pkt, unsigned len)
{
struct rpc_t rpc_pkt;
int rlen;
+ int nfsv3_data_offset = 0;
debug("%s\n", __func__);
rpc_pkt.u.reply.data[0])
return -1;
- rlen = ntohl(rpc_pkt.u.reply.data[1]); /* new path length */
+ if (!(supported_nfs_versions & NFSV2_FLAG)) { /* NFSV3_FLAG */
+ nfsv3_data_offset =
+ nfs3_get_attributes_offset(rpc_pkt.u.reply.data);
+ }
+
+ /* new path length */
+ rlen = ntohl(rpc_pkt.u.reply.data[1 + nfsv3_data_offset]);
+
+ if (((uchar *)&(rpc_pkt.u.reply.data[0]) - (uchar *)(&rpc_pkt) + rlen) > len)
+ return -NFS_RPC_DROP;
- if (*((char *)&(rpc_pkt.u.reply.data[2])) != '/') {
+ if (*((char *)&(rpc_pkt.u.reply.data[2 + nfsv3_data_offset])) != '/') {
int pathlen;
+
strcat(nfs_path, "/");
pathlen = strlen(nfs_path);
- memcpy(nfs_path + pathlen, (uchar *)&(rpc_pkt.u.reply.data[2]),
+ memcpy(nfs_path + pathlen,
+ (uchar *)&(rpc_pkt.u.reply.data[2 + nfsv3_data_offset]),
rlen);
nfs_path[pathlen + rlen] = 0;
} else {
- memcpy(nfs_path, (uchar *)&(rpc_pkt.u.reply.data[2]), rlen);
+ memcpy(nfs_path,
+ (uchar *)&(rpc_pkt.u.reply.data[2 + nfsv3_data_offset]),
+ rlen);
nfs_path[rlen] = 0;
}
return 0;
{
struct rpc_t rpc_pkt;
int rlen;
+ uchar *data_ptr;
debug("%s\n", __func__);
- memcpy((uchar *)&rpc_pkt, pkt, sizeof(rpc_pkt.u.reply));
+ memcpy(&rpc_pkt.u.data[0], pkt, sizeof(rpc_pkt.u.reply));
if (ntohl(rpc_pkt.u.reply.id) > rpc_id)
return -NFS_RPC_ERR;
if (!(nfs_offset % ((NFS_READ_SIZE / 2) * 10)))
putc('#');
- rlen = ntohl(rpc_pkt.u.reply.data[18]);
- if (store_block((uchar *)pkt + sizeof(rpc_pkt.u.reply),
- nfs_offset, rlen))
- return -9999;
+ if (supported_nfs_versions & NFSV2_FLAG) {
+ rlen = ntohl(rpc_pkt.u.reply.data[18]);
+ data_ptr = (uchar *)&(rpc_pkt.u.reply.data[19]);
+ } else { /* NFSV3_FLAG */
+ int nfsv3_data_offset =
+ nfs3_get_attributes_offset(rpc_pkt.u.reply.data);
+
+ /* count value */
+ rlen = ntohl(rpc_pkt.u.reply.data[1 + nfsv3_data_offset]);
+ /* Skip unused values :
+ EOF: 32 bits value,
+ data_size: 32 bits value,
+ */
+ data_ptr = (uchar *)
+ &(rpc_pkt.u.reply.data[4 + nfsv3_data_offset]);
+ }
+
+ if (((uchar *)&(rpc_pkt.u.reply.data[0]) - (uchar *)(&rpc_pkt) + rlen) > len)
+ return -9999;
+
+ if (store_block(data_ptr, nfs_offset, rlen))
+ return -9999;
return rlen;
}
debug("%s\n", __func__);
+ if (len > sizeof(struct rpc_t))
+ return;
+
if (dest != nfs_our_port)
return;
if (reply == -NFS_RPC_DROP) {
break;
} else if (reply == -NFS_RPC_ERR) {
- puts("*** ERROR: Cannot umount\n");
+ debug("*** ERROR: Cannot umount\n");
net_set_state(NETLOOP_FAIL);
} else {
puts("\ndone\n");
puts("*** ERROR: File lookup fail\n");
nfs_state = STATE_UMOUNT_REQ;
nfs_send();
+ } else if (reply == -NFS_RPC_PROG_MISMATCH &&
+ supported_nfs_versions != 0) {
+ /* umount */
+ nfs_state = STATE_UMOUNT_REQ;
+ nfs_send();
+ /* And retry with another supported version */
+ nfs_state = STATE_PRCLOOKUP_PROG_MOUNT_REQ;
+ nfs_send();
} else {
nfs_state = STATE_READ_REQ;
nfs_offset = 0;
case STATE_READ_REQ:
rlen = nfs_read_reply(pkt, len);
+ if (rlen == -NFS_RPC_DROP)
+ break;
net_set_timeout_handler(nfs_timeout, nfs_timeout_handler);
if (rlen > 0) {
nfs_offset += rlen;
} else {
if (!rlen)
nfs_download_state = NETLOOP_SUCCESS;
+ if (rlen < 0)
+ debug("NFS READ error (%d)\n", rlen);
nfs_state = STATE_UMOUNT_REQ;
nfs_send();
}
if (nfs_path == NULL) {
net_set_state(NETLOOP_FAIL);
- puts("*** ERROR: Fail allocate memory\n");
+ printf("*** ERROR: Fail allocate memory\n");
return;
}
- if (net_boot_file_name[0] == '\0') {
+ if (!net_parse_bootfile(&nfs_server_ip, nfs_path,
+ sizeof(nfs_path_buff))) {
sprintf(nfs_path, "/nfsroot/%02X%02X%02X%02X.img",
net_ip.s_addr & 0xFF,
(net_ip.s_addr >> 8) & 0xFF,
printf("*** Warning: no boot file name; using '%s'\n",
nfs_path);
- } else {
- char *p = net_boot_file_name;
-
- p = strchr(p, ':');
-
- if (p != NULL) {
- nfs_server_ip = string_to_ip(net_boot_file_name);
- ++p;
- strcpy(nfs_path, p);
- } else {
- strcpy(nfs_path, net_boot_file_name);
- }
}
nfs_filename = basename(nfs_path);
struct in_addr server_net;
our_net.s_addr = net_ip.s_addr & net_netmask.s_addr;
- server_net.s_addr = net_server_ip.s_addr & net_netmask.s_addr;
+ server_net.s_addr = nfs_server_ip.s_addr & net_netmask.s_addr;
if (our_net.s_addr != server_net.s_addr)
printf("; sending through gateway %pI4",
&net_gateway);
net_boot_file_expected_size_in_blocks << 9);
print_size(net_boot_file_expected_size_in_blocks << 9, "");
}
- printf("\nLoad address: 0x%lx\n"
- "Loading: *\b", load_addr);
+ printf("\nLoad address: 0x%lx\nLoading: *\b", load_addr);
net_set_timeout_handler(nfs_timeout, nfs_timeout_handler);
net_set_udp_handler(nfs_handler);
projects / oweals / u-boot.git / blobdiff