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-rw-r--r--toys/pending/nbd_client.c136
1 files changed, 0 insertions, 136 deletions
diff --git a/toys/pending/nbd_client.c b/toys/pending/nbd_client.c
deleted file mode 100644
index 9a5b2f74..00000000
--- a/toys/pending/nbd_client.c
+++ /dev/null
@@ -1,136 +0,0 @@
-/* vi: set sw=4 ts=4:
- *
- * nbd-client.c - network block device client
- *
- * Copyright 2010 Rob Landley <rob@landley.net>
- *
- * Not in SUSv4.
-
-USE_NBD_CLIENT(NEWTOY(nbd_client, "<3>3ns", TOYFLAG_USR|TOYFLAG_BIN))
-
-config NBD_CLIENT
- bool "nbd-client"
- default n
- help
- usage: nbd-client [-ns] HOST PORT DEVICE
-
- -n Do not fork into background
- -s nbd swap support (lock server into memory)
-*/
-
-/*
- Usage: nbd-client [-sSpn] [-b BLKSZ] [-t SECS] [-N name] HOST PORT DEVICE
-
- -b block size
- -t timeout in seconds
- -S sdp
- -p persist
- -n nofork
- -d DEVICE
- -c DEVICE
-*/
-
-#define FOR_nbd_client
-#include "toys.h"
-
-#define NBD_SET_SOCK _IO(0xab, 0)
-#define NBD_SET_BLKSIZE _IO(0xab, 1)
-#define NBD_SET_SIZE _IO(0xab, 2)
-#define NBD_DO_IT _IO(0xab, 3)
-#define NBD_CLEAR_SOCK _IO(0xab, 4)
-#define NBD_CLEAR_QUEUE _IO(0xab, 5)
-#define NBD_PRINT_DEBUG _IO(0xab, 6)
-#define NBD_SET_SIZE_BLOCKS _IO(0xab, 7)
-#define NBD_DISCONNECT _IO(0xab, 8)
-#define NBD_SET_TIMEOUT _IO(0xab, 9)
-
-void nbd_client_main(void)
-{
- int sock = -1, nbd, flags;
- unsigned long timeout = 0;
- struct addrinfo *addr, *p;
- char *host=toys.optargs[0], *port=toys.optargs[1], *device=toys.optargs[2];
- uint64_t devsize;
-
- // Repeat until spanked
-
- nbd = xopen(device, O_RDWR);
- for (;;) {
- int temp;
- struct addrinfo hints;
-
- // Find and connect to server
-
- memset(&hints, 0, sizeof(hints));
- hints.ai_family = PF_UNSPEC;
- hints.ai_socktype = SOCK_STREAM;
- if (getaddrinfo(host, port, &hints, &addr)) addr = 0;
- for (p = addr; p; p = p->ai_next) {
- sock = socket(p->ai_family, p->ai_socktype, p->ai_protocol);
- if (-1 != connect(sock, p->ai_addr, p->ai_addrlen)) break;
- close(sock);
- }
- freeaddrinfo(addr);
-
- if (!p) perror_exit("%s:%s", host, port);
-
- temp = 1;
- setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, &temp, sizeof(int));
-
- // Read login data
-
- xreadall(sock, toybuf, 152);
- if (memcmp(toybuf, "NBDMAGIC\x00\x00\x42\x02\x81\x86\x12\x53", 16))
- error_exit("bad login %s:%s", host, port);
- devsize = SWAP_BE64(*(uint64_t *)(toybuf+16));
- flags = SWAP_BE32(*(int *)(toybuf+24));
-
- // Set 4k block size. Everything uses that these days.
- ioctl(nbd, NBD_SET_BLKSIZE, 4096);
- ioctl(nbd, NBD_SET_SIZE_BLOCKS, devsize/4096);
- ioctl(nbd, NBD_CLEAR_SOCK);
-
- // If the sucker was exported read only, respect that locally.
- temp = (flags & 2) ? 1 : 0;
- xioctl(nbd, BLKROSET, &temp);
-
- if (timeout && ioctl(nbd, NBD_SET_TIMEOUT, timeout)<0) break;
- if (ioctl(nbd, NBD_SET_SOCK, sock) < 0) break;
-
- if (toys.optflags & FLAG_s) mlockall(MCL_CURRENT|MCL_FUTURE);
-
- // Open the device to force reread of the partition table.
- if ((toys.optflags & FLAG_n) || !xfork()) {
- char *s = strrchr(device, '/');
- int i;
-
- sprintf(toybuf, "/sys/block/%.32s/pid", s ? s+1 : device);
- // Is it up yet? (Give it 10 seconds.)
- for (i=0; i<100; i++) {
- temp = open(toybuf, O_RDONLY);
- if (temp == -1) msleep(100);
- else {
- close(temp);
- break;
- }
- }
- close(open(device, O_RDONLY));
- if (!(toys.optflags & FLAG_n)) exit(0);
- }
-
- // Daemonize here.
-
- daemon(0,0);
-
- // Process NBD requests until further notice.
-
- if (ioctl(nbd, NBD_DO_IT)>=0 || errno==EBADR) break;
- close(sock);
- }
- close(nbd);
-
- // Flush queue and exit.
-
- ioctl(nbd, NBD_CLEAR_QUEUE);
- ioctl(nbd, NBD_CLEAR_SOCK);
-}