diff options
Diffstat (limited to 'target/linux/ifxmips/image/u-boot/files/net/nfs_danube.c')
| -rw-r--r-- | target/linux/ifxmips/image/u-boot/files/net/nfs_danube.c | 778 |
1 files changed, 0 insertions, 778 deletions
diff --git a/target/linux/ifxmips/image/u-boot/files/net/nfs_danube.c b/target/linux/ifxmips/image/u-boot/files/net/nfs_danube.c deleted file mode 100644 index de789e1f84..0000000000 --- a/target/linux/ifxmips/image/u-boot/files/net/nfs_danube.c +++ /dev/null @@ -1,778 +0,0 @@ -/* - * NFS support driver - based on etherboot and U-BOOT's tftp.c - * - * Masami Komiya <mkomiya@sonare.it> 2004 - * - */ - -/* NOTE: the NFS code is heavily inspired by the NetBSD netboot code (read: - * large portions are copied verbatim) as distributed in OSKit 0.97. A few - * changes were necessary to adapt the code to Etherboot and to fix several - * inconsistencies. Also the RPC message preparation is done "by hand" to - * avoid adding netsprintf() which I find hard to understand and use. */ - -/* NOTE 2: Etherboot does not care about things beyond the kernel image, so - * it loads the kernel image off the boot server (ARP_SERVER) and does not - * access the client root disk (root-path in dhcpd.conf), which would use - * ARP_ROOTSERVER. The root disk is something the operating system we are - * about to load needs to use. This is different from the OSKit 0.97 logic. */ - -/* NOTE 3: Symlink handling introduced by Anselm M Hoffmeister, 2003-July-14 - * If a symlink is encountered, it is followed as far as possible (recursion - * possible, maximum 16 steps). There is no clearing of ".."'s inside the - * path, so please DON'T DO THAT. thx. */ - -#include <common.h> -#include <command.h> -#include <net.h> -#include <malloc.h> -#include "nfs.h" -#include "bootp.h" - -/*#define NFS_DEBUG*/ - -#if ((CONFIG_COMMANDS & CFG_CMD_NET) && (CONFIG_COMMANDS & CFG_CMD_NFS)) - -#define HASHES_PER_LINE 65 /* Number of "loading" hashes per line */ -#define NFS_TIMEOUT 60 - -static int fs_mounted = 0; -static unsigned long rpc_id = 0; -static int nfs_offset = -1; -static int nfs_len; - -static char dirfh[NFS_FHSIZE]; /* file handle of directory */ -static char filefh[NFS_FHSIZE]; /* file handle of kernel image */ - -static int NfsDownloadState; -static IPaddr_t NfsServerIP; -static int NfsSrvMountPort; -static int NfsSrvNfsPort; -static int NfsOurPort; -static int NfsTimeoutCount; -static int NfsState; -#define STATE_PRCLOOKUP_PROG_MOUNT_REQ 1 -#define STATE_PRCLOOKUP_PROG_NFS_REQ 2 -#define STATE_MOUNT_REQ 3 -#define STATE_UMOUNT_REQ 4 -#define STATE_LOOKUP_REQ 5 -#define STATE_READ_REQ 6 -#define STATE_READLINK_REQ 7 - -static char default_filename[64]; -static char *nfs_filename; -static char *nfs_path; -static char nfs_path_buff[2048]; - -static __inline__ int -store_block (uchar * src, unsigned offset, unsigned len) -{ - ulong newsize = offset + len; -#ifdef CFG_DIRECT_FLASH_NFS - int i, rc = 0; - - for (i=0; i<CFG_MAX_FLASH_BANKS; i++) { - /* start address in flash? */ - if (load_addr + offset >= flash_info[i].start[0]) { - rc = 1; - break; - } - } - - if (rc) { /* Flash is destination for this packet */ - rc = flash_write ((uchar *)src, (ulong)(load_addr+offset), len); - if (rc) { - flash_perror (rc); - return -1; - } - } else -#endif /* CFG_DIRECT_FLASH_NFS */ - { - (void)memcpy ((void *)(load_addr + offset), src, len); - } - - if (NetBootFileXferSize < (offset+len)) - NetBootFileXferSize = newsize; - return 0; -} - -static char* -basename (char *path) -{ - char *fname; - - fname = path + strlen(path) - 1; - while (fname >= path) { - if (*fname == '/') { - fname++; - break; - } - fname--; - } - return fname; -} - -static char* -dirname (char *path) -{ - char *fname; - - fname = basename (path); - --fname; - *fname = '\0'; - return path; -} - -/************************************************************************** -RPC_ADD_CREDENTIALS - Add RPC authentication/verifier entries -**************************************************************************/ -static long *rpc_add_credentials (long *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 - * in the AUTH_UNIX scheme). *BSD refuses AUTH_NONE, but accepts - * AUTH_UNIX (also accepts an empty hostname field in the AUTH_UNIX - * scheme). To be safe, use AUTH_UNIX and pass the hostname if we have - * 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++ = 0; /* uid */ - *p++ = 0; /* gid */ - *p++ = 0; /* auxiliary gid list */ - - /* Provide an AUTH_NONE verifier. */ - *p++ = 0; /* AUTH_NONE */ - *p++ = 0; /* auth length */ - - return p; -} - -/************************************************************************** -RPC_LOOKUP - Lookup RPC Port numbers -**************************************************************************/ -static void -rpc_req (int rpc_prog, int rpc_proc, uint32_t *data, int datalen) -{ - struct rpc_t 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); - - if (datalen) - memcpy ((char *)p, (char *)data, datalen*sizeof(uint32_t)); - - pktlen = (char *)p + datalen*sizeof(uint32_t) - (char *)&pkt; - - memcpy ((char *)NetTxPacket + NetEthHdrSize() + IP_HDR_SIZE, (char *)&pkt, pktlen); - - if (rpc_prog == PROG_PORTMAP) - sport = SUNRPC_PORT; - else if (rpc_prog == PROG_MOUNT) - sport = NfsSrvMountPort; - else - sport = NfsSrvNfsPort; - - NetSendUDPPacket (NetServerEther, NfsServerIP, sport, NfsOurPort, pktlen); -} - -/************************************************************************** -RPC_LOOKUP - Lookup RPC Port numbers -**************************************************************************/ -static void -rpc_lookup_req (int prog, int ver) -{ - uint32_t data[16]; - - data[0] = 0; data[1] = 0; /* auth credential */ - data[2] = 0; data[3] = 0; /* auth verifier */ - data[4] = htonl(prog); - data[5] = htonl(ver); - data[6] = htonl(17); /* IP_UDP */ - data[7] = 0; - - rpc_req (PROG_PORTMAP, PORTMAP_GETPORT, data, 8); -} - -/************************************************************************** -NFS_MOUNT - Mount an NFS Filesystem -**************************************************************************/ -static void -nfs_mount_req (char *path) -{ - uint32_t data[1024]; - uint32_t *p; - int len; - int pathlen; - - pathlen = strlen (path); - - p = &(data[0]); - p = (uint32_t *)rpc_add_credentials((long *)p); - - *p++ = htonl(pathlen); - if (pathlen & 3) *(p + pathlen / 4) = 0; - memcpy (p, path, pathlen); - p += (pathlen + 3) / 4; - - len = (uint32_t *)p - (uint32_t *)&(data[0]); - - rpc_req (PROG_MOUNT, MOUNT_ADDENTRY, data, len); -} - -/************************************************************************** -NFS_UMOUNTALL - Unmount all our NFS Filesystems on the Server -**************************************************************************/ -static void -nfs_umountall_req (void) -{ - uint32_t data[1024]; - uint32_t *p; - int len; - - if ((NfsSrvMountPort == -1) || (!fs_mounted)) { - /* Nothing mounted, nothing to umount */ - return; - } - - p = &(data[0]); - p = (uint32_t *)rpc_add_credentials ((long *)p); - - len = (uint32_t *)p - (uint32_t *)&(data[0]); - - rpc_req (PROG_MOUNT, MOUNT_UMOUNTALL, data, len); -} - -/*************************************************************************** - * NFS_READLINK (AH 2003-07-14) - * This procedure is called when read of the first block fails - - * this probably happens when it's a directory or a symlink - * In case of successful readlink(), the dirname is manipulated, - * so that inside the nfs() function a recursion can be done. - **************************************************************************/ -static void -nfs_readlink_req (void) -{ - uint32_t data[1024]; - uint32_t *p; - int len; - - p = &(data[0]); - p = (uint32_t *)rpc_add_credentials ((long *)p); - - memcpy (p, filefh, NFS_FHSIZE); - p += (NFS_FHSIZE / 4); - - len = (uint32_t *)p - (uint32_t *)&(data[0]); - - rpc_req (PROG_NFS, NFS_READLINK, data, len); -} - -/************************************************************************** -NFS_LOOKUP - Lookup Pathname -**************************************************************************/ -static void -nfs_lookup_req (char *fname) -{ - uint32_t data[1024]; - uint32_t *p; - int len; - int fnamelen; - - fnamelen = strlen (fname); - - p = &(data[0]); - p = (uint32_t *)rpc_add_credentials ((long *)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); -} - -/************************************************************************** -NFS_READ - Read File on NFS Server -**************************************************************************/ -static void -nfs_read_req (int offset, int readlen) -{ - uint32_t data[1024]; - uint32_t *p; - int len; - - p = &(data[0]); - p = (uint32_t *)rpc_add_credentials ((long *)p); - - memcpy (p, filefh, NFS_FHSIZE); - p += (NFS_FHSIZE / 4); - *p++ = htonl(offset); - *p++ = htonl(readlen); - *p++ = 0; - - len = (uint32_t *)p - (uint32_t *)&(data[0]); - - rpc_req (PROG_NFS, NFS_READ, data, len); -} - -/************************************************************************** -RPC request dispatcher -**************************************************************************/ - -static void -NfsSend (void) -{ -#ifdef NFS_DEBUG - printf ("%s\n", __FUNCTION__); -#endif - - switch (NfsState) { - case STATE_PRCLOOKUP_PROG_MOUNT_REQ: - rpc_lookup_req (PROG_MOUNT, 1); - break; - case STATE_PRCLOOKUP_PROG_NFS_REQ: - rpc_lookup_req (PROG_NFS, 2); - break; - case STATE_MOUNT_REQ: - nfs_mount_req (nfs_path); - break; - case STATE_UMOUNT_REQ: - nfs_umountall_req (); - break; - case STATE_LOOKUP_REQ: - nfs_lookup_req (nfs_filename); - break; - case STATE_READ_REQ: - nfs_read_req (nfs_offset, nfs_len); - break; - case STATE_READLINK_REQ: - nfs_readlink_req (); - break; - } -} - -/************************************************************************** -Handlers for the reply from server -**************************************************************************/ - -static int -rpc_lookup_reply (int prog, uchar *pkt, unsigned len) -{ - struct rpc_t rpc_pkt; - - memcpy ((unsigned char *)&rpc_pkt, pkt, len); - -#ifdef NFS_DEBUG - printf ("%s\n", __FUNCTION__); -#endif - - if (ntohl(rpc_pkt.u.reply.id) != rpc_id) - return -1; - - if (rpc_pkt.u.reply.rstatus || - rpc_pkt.u.reply.verifier || - rpc_pkt.u.reply.astatus || - rpc_pkt.u.reply.astatus) { - return -1; - } - - switch (prog) { - case PROG_MOUNT: - NfsSrvMountPort = ntohl(rpc_pkt.u.reply.data[0]); - break; - case PROG_NFS: - NfsSrvNfsPort = ntohl(rpc_pkt.u.reply.data[0]); - break; - } - - return 0; -} - -static int -nfs_mount_reply (uchar *pkt, unsigned len) -{ - struct rpc_t rpc_pkt; - -#ifdef NFS_DEBUG - printf ("%s\n", __FUNCTION__); -#endif - - memcpy ((unsigned char *)&rpc_pkt, pkt, len); - - if (ntohl(rpc_pkt.u.reply.id) != rpc_id) - return -1; - - if (rpc_pkt.u.reply.rstatus || - rpc_pkt.u.reply.verifier || - rpc_pkt.u.reply.astatus || - rpc_pkt.u.reply.data[0]) { - return -1; - } - - fs_mounted = 1; - memcpy (dirfh, rpc_pkt.u.reply.data + 1, NFS_FHSIZE); - - return 0; -} - -static int -nfs_umountall_reply (uchar *pkt, unsigned len) -{ - struct rpc_t rpc_pkt; - -#ifdef NFS_DEBUG - printf ("%s\n", __FUNCTION__); -#endif - - memcpy ((unsigned char *)&rpc_pkt, pkt, len); - - if (ntohl(rpc_pkt.u.reply.id) != rpc_id) - return -1; - - if (rpc_pkt.u.reply.rstatus || - rpc_pkt.u.reply.verifier || - rpc_pkt.u.reply.astatus) { - return -1; - } - - fs_mounted = 0; - memset (dirfh, 0, sizeof(dirfh)); - - return 0; -} - -static int -nfs_lookup_reply (uchar *pkt, unsigned len) -{ - struct rpc_t rpc_pkt; - -#ifdef NFS_DEBUG - printf ("%s\n", __FUNCTION__); -#endif - - memcpy ((unsigned char *)&rpc_pkt, pkt, len); - - if (ntohl(rpc_pkt.u.reply.id) != rpc_id) - return -1; - - if (rpc_pkt.u.reply.rstatus || - rpc_pkt.u.reply.verifier || - rpc_pkt.u.reply.astatus || - rpc_pkt.u.reply.data[0]) { - return -1; - } - - memcpy (filefh, rpc_pkt.u.reply.data + 1, NFS_FHSIZE); - - return 0; -} - -static int -nfs_readlink_reply (uchar *pkt, unsigned len) -{ - struct rpc_t rpc_pkt; - int rlen; - -#ifdef NFS_DEBUG - printf ("%s\n", __FUNCTION__); -#endif - - memcpy ((unsigned char *)&rpc_pkt, pkt, len); - - if (ntohl(rpc_pkt.u.reply.id) != rpc_id) - return -1; - - if (rpc_pkt.u.reply.rstatus || - rpc_pkt.u.reply.verifier || - rpc_pkt.u.reply.astatus || - rpc_pkt.u.reply.data[0]) { - return -1; - } - - rlen = ntohl (rpc_pkt.u.reply.data[1]); /* new path length */ - - if (*((char *)&(rpc_pkt.u.reply.data[2])) != '/') { - int pathlen; - strcat (nfs_path, "/"); - pathlen = strlen(nfs_path); - memcpy (nfs_path+pathlen, (uchar *)&(rpc_pkt.u.reply.data[2]), rlen); - nfs_path[pathlen+rlen+1] = 0; - } else { - memcpy (nfs_path, (uchar *)&(rpc_pkt.u.reply.data[2]), rlen); - nfs_path[rlen] = 0; - } - return 0; -} - -static int -nfs_read_reply (uchar *pkt, unsigned len) -{ - struct rpc_t rpc_pkt; - int rlen; - -#ifdef NFS_DEBUG_nop - printf ("%s\n", __FUNCTION__); -#endif - - memcpy ((uchar *)&rpc_pkt, pkt, sizeof(rpc_pkt.u.reply)); - - if (ntohl(rpc_pkt.u.reply.id) != rpc_id) - return -1; - - if (rpc_pkt.u.reply.rstatus || - rpc_pkt.u.reply.verifier || - rpc_pkt.u.reply.astatus || - rpc_pkt.u.reply.data[0]) { - if (rpc_pkt.u.reply.rstatus) { - return -9999; - } - if (rpc_pkt.u.reply.astatus) { - return -9999; - } - return -ntohl(rpc_pkt.u.reply.data[0]);; - } - - if ((nfs_offset!=0) && !((nfs_offset) % (NFS_READ_SIZE/2*10*HASHES_PER_LINE))) { - puts ("\n\t "); - } - 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; - - return rlen; -} - -/************************************************************************** -Interfaces of U-BOOT -**************************************************************************/ - -static void -NfsTimeout (void) -{ - puts ("Timeout\n"); - NetState = NETLOOP_FAIL; - return; -} - -static void -NfsHandler (uchar *pkt, unsigned dest, unsigned src, unsigned len) -{ - int rlen; - -#ifdef NFS_DEBUG - printf ("%s\n", __FUNCTION__); -#endif - - if (dest != NfsOurPort) return; - - switch (NfsState) { - case STATE_PRCLOOKUP_PROG_MOUNT_REQ: - rpc_lookup_reply (PROG_MOUNT, pkt, len); - NfsState = STATE_PRCLOOKUP_PROG_NFS_REQ; - NfsSend (); - break; - - case STATE_PRCLOOKUP_PROG_NFS_REQ: - rpc_lookup_reply (PROG_NFS, pkt, len); - NfsState = STATE_MOUNT_REQ; - NfsSend (); - break; - - case STATE_MOUNT_REQ: - if (nfs_mount_reply(pkt, len)) { - puts ("*** ERROR: Cannot mount\n"); - /* just to be sure... */ - NfsState = STATE_UMOUNT_REQ; - NfsSend (); - } else { - NfsState = STATE_LOOKUP_REQ; - NfsSend (); - } - break; - - case STATE_UMOUNT_REQ: - if (nfs_umountall_reply(pkt, len)) { - puts ("*** ERROR: Cannot umount\n"); - NetState = NETLOOP_FAIL; - } else { - puts ("\ndone\n"); - NetState = NfsDownloadState; - } - break; - - case STATE_LOOKUP_REQ: - if (nfs_lookup_reply(pkt, len)) { - puts ("*** ERROR: File lookup fail\n"); - NfsState = STATE_UMOUNT_REQ; - NfsSend (); - } else { - NfsState = STATE_READ_REQ; - nfs_offset = 0; - nfs_len = NFS_READ_SIZE; - NfsSend (); - } - break; - - case STATE_READLINK_REQ: - if (nfs_readlink_reply(pkt, len)) { - puts ("*** ERROR: Symlink fail\n"); - NfsState = STATE_UMOUNT_REQ; - NfsSend (); - } else { -#ifdef NFS_DEBUG - printf ("Symlink --> %s\n", nfs_path); -#endif - nfs_filename = basename (nfs_path); - nfs_path = dirname (nfs_path); - - NfsState = STATE_MOUNT_REQ; - NfsSend (); - } - break; - - case STATE_READ_REQ: - rlen = nfs_read_reply (pkt, len); - NetSetTimeout (NFS_TIMEOUT * CFG_HZ, NfsTimeout); - if (rlen > 0) { - nfs_offset += rlen; - NfsSend (); - } - else if ((rlen == -NFSERR_ISDIR)||(rlen == -NFSERR_INVAL)) { - /* symbolic link */ - NfsState = STATE_READLINK_REQ; - NfsSend (); - } else { - if ( ! rlen ) NfsDownloadState = NETLOOP_SUCCESS; - NfsState = STATE_UMOUNT_REQ; - NfsSend (); - } - break; - } -} - - -void -NfsStart (void) -{ -#ifdef NFS_DEBUG - printf ("%s\n", __FUNCTION__); -#endif - NfsDownloadState = NETLOOP_FAIL; - - NfsServerIP = NetServerIP; - nfs_path = (char *)nfs_path_buff; - - if (nfs_path == NULL) { - NetState = NETLOOP_FAIL; - puts ("*** ERROR: Fail allocate memory\n"); - return; - } - - if (BootFile[0] == '\0') { - sprintf (default_filename, "/nfsroot/%02lX%02lX%02lX%02lX.img", - NetOurIP & 0xFF, - (NetOurIP >> 8) & 0xFF, - (NetOurIP >> 16) & 0xFF, - (NetOurIP >> 24) & 0xFF ); - strcpy (nfs_path, default_filename); - - printf ("*** Warning: no boot file name; using '%s'\n", - nfs_path); - } else { - char *p=BootFile; - - p = strchr (p, ':'); - - if (p != NULL) { - NfsServerIP = string_to_ip (BootFile); - ++p; - strcpy (nfs_path, p); - } else { - strcpy (nfs_path, BootFile); - } - } - - nfs_filename = basename (nfs_path); - nfs_path = dirname (nfs_path); - -#if defined(CONFIG_NET_MULTI) - printf ("Using %s device\n", eth_get_name()); -#endif - - puts ("File transfer via NFS from server "); print_IPaddr (NfsServerIP); - puts ("; our IP address is "); print_IPaddr (NetOurIP); - - /* Check if we need to send across this subnet */ - if (NetOurGatewayIP && NetOurSubnetMask) { - IPaddr_t OurNet = NetOurIP & NetOurSubnetMask; - IPaddr_t ServerNet = NetServerIP & NetOurSubnetMask; - - if (OurNet != ServerNet) { - puts ("; sending through gateway "); - print_IPaddr (NetOurGatewayIP) ; - } - } - printf ("\nFilename '%s/%s'.", nfs_path, nfs_filename); - - if (NetBootFileSize) { - printf (" Size is 0x%x Bytes = ", NetBootFileSize<<9); - print_size (NetBootFileSize<<9, ""); - } - printf ("\nLoad address: 0x%lx\n" - "Loading: *\b", load_addr); - - NetSetTimeout (NFS_TIMEOUT * CFG_HZ, NfsTimeout); - NetSetHandler (NfsHandler); - - NfsTimeoutCount = 0; - NfsState = STATE_PRCLOOKUP_PROG_MOUNT_REQ; - - /*NfsOurPort = 4096 + (get_ticks() % 3072);*/ - /*FIX ME !!!*/ - NfsOurPort = 1000; - - /* zero out server ether in case the server ip has changed */ - memset (NetServerEther, 0, 6); - - NfsSend (); -} - -#endif /* CONFIG_COMMANDS & CFG_CMD_NFS */ |