int
net_mountroot(void)
{
#ifdef DEBUG
printf("net_mountroot\n");
#endif
/*
* Get info for NFS boot: our IP address, our hostname,
* server IP address, and our root path on the server.
* There are two ways to do this: The old, Sun way,
* and the more modern, BOOTP way. (RFC951, RFC1048)
*/
#ifdef SUN_BOOTPARAMS
/* Get boot info using RARP and Sun bootparams. */
/* Get our IP address. (rarp.c) */
if (rarp_getipaddress(netdev_sock) == -1)
return errno;
printf("boot: client IP address: %s\n", inet_ntoa(myip));
/* Get our hostname, server IP address. */
if (bp_whoami(netdev_sock))
return (errno);
printf("boot: client name: %s\n", hostname);
/* Get the root pathname. */
if (bp_getfile(netdev_sock, "root", &rootip, rootpath))
return (errno);
#else
/* Get boot info using BOOTP way. (RFC951, RFC1048) */
bootp(netdev_sock);
printf("Using IP address: %s\n", inet_ntoa(myip));
printf("myip: %s (%s)", hostname, inet_ntoa(myip));
if (gateip)
printf(", gateip: %s", inet_ntoa(gateip));
if (netmask)
printf(", netmask: %s", intoa(netmask));
printf("\n");
#endif
printf("root addr=%s path=%s\n", inet_ntoa(rootip), rootpath);
/* Get the NFS file handle (mount). */
if (nfs_mount(netdev_sock, rootip, rootpath) != 0)
return (errno);
return 0;
}
int
net_mountroot_bootparams(void)
{
/* Get our IP address. (rarp.c) */
if (rarp_getipaddress(netdev_sock) == -1)
return (errno);
printf("Using BOOTPARAMS protocol: ");
printf("ip address: %s", inet_ntoa(myip));
/* Get our hostname, server IP address. */
if (bp_whoami(netdev_sock))
return (errno);
printf(", hostname: %s\n", hostname);
/* Get the root pathname. */
if (bp_getfile(netdev_sock, "root", &rootip, rootpath))
return (errno);
return (0);
}
static int
net_getparams(int sock)
{
char buf[MAXHOSTNAMELEN];
n_long rootaddr, smask;
#ifdef SUPPORT_BOOTP
/*
* Try to get boot info using BOOTP. If we succeed, then
* the server IP address, gateway, and root path will all
* be initialized. If any remain uninitialized, we will
* use RARP and RPC/bootparam (the Sun way) to get them.
*/
if (try_bootp)
bootp(sock, BOOTP_NONE);
if (myip.s_addr != 0)
goto exit;
#ifdef NETIF_DEBUG
if (debug)
printf("net_open: BOOTP failed, trying RARP/RPC...\n");
#endif
#endif
/*
* Use RARP to get our IP address. This also sets our
* netmask to the "natural" default for our address.
*/
if (rarp_getipaddress(sock)) {
printf("net_open: RARP failed\n");
return (EIO);
}
printf("net_open: client addr: %s\n", inet_ntoa(myip));
/* Get our hostname, server IP address, gateway. */
if (bp_whoami(sock)) {
printf("net_open: bootparam/whoami RPC failed\n");
return (EIO);
}
#ifdef NETIF_DEBUG
if (debug)
printf("net_open: client name: %s\n", hostname);
#endif
/*
* Ignore the gateway from whoami (unreliable).
* Use the "gateway" parameter instead.
*/
smask = 0;
gateip.s_addr = 0;
if (bp_getfile(sock, "gateway", &gateip, buf) == 0) {
/* Got it! Parse the netmask. */
smask = ip_convertaddr(buf);
}
if (smask) {
netmask = smask;
#ifdef NETIF_DEBUG
if (debug)
printf("net_open: subnet mask: %s\n", intoa(netmask));
#endif
}
#ifdef NETIF_DEBUG
if (gateip.s_addr && debug)
printf("net_open: net gateway: %s\n", inet_ntoa(gateip));
#endif
/* Get the root server and pathname. */
if (bp_getfile(sock, "root", &rootip, rootpath)) {
printf("net_open: bootparam/getfile RPC failed\n");
return (EIO);
}
exit:
if ((rootaddr = net_parse_rootpath()) != INADDR_NONE)
rootip.s_addr = rootaddr;
#ifdef NETIF_DEBUG
if (debug) {
printf("net_open: server addr: %s\n", inet_ntoa(rootip));
printf("net_open: server path: %s\n", rootpath);
}
#endif
return (0);
}
int
netmountroot(struct open_file *f, char *devname)
{
int error;
struct iodesc *d;
#ifdef DEBUG
printf("netmountroot: %s\n", devname);
#endif
if (netio_ask) {
get_my_ip:
printf("My IP address? ");
bzero(input_line, sizeof(input_line));
gets(input_line);
if ((myip.s_addr = inet_addr(input_line)) ==
htonl(INADDR_NONE)) {
printf("invalid IP address: %s\n", input_line);
goto get_my_ip;
}
get_my_netmask:
printf("My netmask? ");
bzero(input_line, sizeof(input_line));
gets(input_line);
if ((netmask = inet_addr(input_line)) ==
htonl(INADDR_NONE)) {
printf("invalid netmask: %s\n", input_line);
goto get_my_netmask;
}
get_my_gateway:
printf("My gateway? ");
bzero(input_line, sizeof(input_line));
gets(input_line);
if ((gateip.s_addr = inet_addr(input_line)) ==
htonl(INADDR_NONE)) {
printf("invalid IP address: %s\n", input_line);
goto get_my_gateway;
}
get_server_ip:
printf("Server IP address? ");
bzero(input_line, sizeof(input_line));
gets(input_line);
if ((rootip.s_addr = inet_addr(input_line)) ==
htonl(INADDR_NONE)) {
printf("invalid IP address: %s\n", input_line);
goto get_server_ip;
}
get_server_path:
printf("Server path? ");
bzero(rootpath, sizeof(rootpath));
gets(rootpath);
if (rootpath[0] == '\0' || rootpath[0] == '\n')
goto get_server_path;
if ((d = socktodesc(netdev_sock)) == NULL)
return (EMFILE);
d->myip = myip;
goto do_nfs_mount;
}
/*
* Get info for NFS boot: our IP address, our hostname,
* server IP address, and our root path on the server.
* There are two ways to do this: The old, Sun way,
* and the more modern, BOOTP way. (RFC951, RFC1048)
*/
#ifdef SUN_BOOTPARAMS
/* Get boot info using RARP and Sun bootparams. */
/* Get our IP address. (rarp.c) */
if (rarp_getipaddress(netdev_sock) == -1)
return (errno);
printf("boot: client IP address: %s\n", inet_ntoa(myip));
/* Get our hostname, server IP address. */
if (bp_whoami(netdev_sock))
return (errno);
printf("boot: client name: %s\n", hostname);
/* Get the root pathname. */
if (bp_getfile(netdev_sock, "root", &rootip, rootpath))
return (errno);
#else
/* Get boot info using BOOTP way. (RFC951, RFC1048) */
bootp(netdev_sock);
printf("Using IP address: %s\n", inet_ntoa(myip));
printf("myip: %s (%s)", hostname, inet_ntoa(myip));
if (gateip)
printf(", gateip: %s", inet_ntoa(gateip));
if (mask)
printf(", mask: %s", intoa(netmask));
printf("\n");
#endif /* SUN_BOOTPARAMS */
printf("root addr=%s path=%s\n", inet_ntoa(rootip), rootpath);
do_nfs_mount:
/* Get the NFS file handle (mount). */
error = nfs_mount(netdev_sock, rootip, rootpath);
return (error);
}
/*
* Get client name, gateway address, then
* get root and swap server:pathname info.
* RPCs: bootparam/whoami, bootparam/getfile
*
* Use the old broadcast address for the WHOAMI
* call because we do not yet know our netmask.
* The server address returned by the WHOAMI call
* is used for all subsequent bootparam RPCs.
*/
int
nfs_bootparam(struct nfs_diskless *nd, struct lwp *lwp, int *flags)
{
struct ifnet *ifp = nd->nd_ifp;
struct in_addr my_ip, arps_ip, gw_ip;
struct sockaddr_in bp_sin;
struct sockaddr_in *sin;
#ifndef NFS_BOOTPARAM_NOGATEWAY
struct nfs_dlmount *gw_ndm = 0;
char *p;
u_int32_t mask;
#endif
int error;
/*
* Bring up the interface. (just set the "up" flag)
*/
error = nfs_boot_ifupdown(ifp, lwp, 1);
if (error) {
printf("nfs_boot: SIFFLAGS, error=%d\n", error);
return (error);
}
error = EADDRNOTAVAIL;
#if NARP > 0
if (ifp->if_type == IFT_ETHER || ifp->if_type == IFT_FDDI) {
/*
* Do RARP for the interface address.
*/
error = revarpwhoarewe(ifp, &arps_ip, &my_ip);
}
#endif
if (error) {
printf("revarp failed, error=%d\n", error);
goto out;
}
if (!(*flags & NFS_BOOT_HAS_MYIP)) {
nd->nd_myip.s_addr = my_ip.s_addr;
printf("nfs_boot: client_addr=%s", inet_ntoa(my_ip));
printf(" (RARP from %s)\n", inet_ntoa(arps_ip));
*flags |= NFS_BOOT_HAS_MYIP;
}
/*
* Do enough of ifconfig(8) so that the chosen interface
* can talk to the servers. (just set the address)
*/
error = nfs_boot_setaddress(ifp, lwp, my_ip.s_addr,
INADDR_ANY, INADDR_ANY);
if (error) {
printf("nfs_boot: set ifaddr, error=%d\n", error);
goto out;
}
/*
* Get client name and gateway address.
* RPC: bootparam/whoami
* Use the old broadcast address for the WHOAMI
* call because we do not yet know our netmask.
* The server address returned by the WHOAMI call
* is used for all subsequent booptaram RPCs.
*/
sin = &bp_sin;
memset((void *)sin, 0, sizeof(*sin));
sin->sin_len = sizeof(*sin);
sin->sin_family = AF_INET;
sin->sin_addr.s_addr = INADDR_BROADCAST;
/* Do the RPC/bootparam/whoami. */
error = bp_whoami(sin, &my_ip, &gw_ip, lwp);
if (error) {
printf("nfs_boot: bootparam whoami, error=%d\n", error);
goto delout;
}
*flags |= NFS_BOOT_HAS_SERVADDR | NFS_BOOT_HAS_SERVER;
printf("nfs_boot: server_addr=%s\n", inet_ntoa(sin->sin_addr));
printf("nfs_boot: hostname=%s\n", hostname);
/*
* Now fetch the server:pathname strings and server IP
* for root and swap. Missing swap is not fatal.
*/
error = bp_getfile(sin, "root", &nd->nd_root, lwp);
if (error) {
printf("nfs_boot: bootparam get root: %d\n", error);
goto delout;
}
*flags |= NFS_BOOT_HAS_ROOTPATH;
#ifndef NFS_BOOTPARAM_NOGATEWAY
gw_ndm = kmem_alloc(sizeof(*gw_ndm), KM_SLEEP);
memset((void *)gw_ndm, 0, sizeof(*gw_ndm));
error = bp_getfile(sin, "gateway", gw_ndm, lwp);
if (error) {
/* No gateway supplied. No error, but try fallback. */
error = 0;
goto nogwrepl;
}
sin = (struct sockaddr_in *) &gw_ndm->ndm_saddr;
if (sin->sin_addr.s_addr == 0)
goto out; /* no gateway */
/* OK, we have a gateway! */
printf("nfs_boot: gateway=%s\n", inet_ntoa(sin->sin_addr));
/* Just save it. Caller adds the route. */
nd->nd_gwip = sin->sin_addr;
*flags |= NFS_BOOT_HAS_GWIP;
/* Look for a mask string after the colon. */
p = strchr(gw_ndm->ndm_host, ':');
if (p == 0)
goto out; /* no netmask */
/* have pathname */
p++; /* skip ':' */
mask = inet_addr(p); /* libkern */
if (mask == 0)
goto out; /* no netmask */
/* Have a netmask too! Save it; update the I/F. */
nd->nd_mask.s_addr = mask;
*flags |= NFS_BOOT_HAS_MASK;
printf("nfs_boot: my_mask=%s\n", inet_ntoa(nd->nd_mask));
(void) nfs_boot_deladdress(ifp, lwp, my_ip.s_addr);
error = nfs_boot_setaddress(ifp, lwp, my_ip.s_addr,
mask, INADDR_ANY);
if (error) {
printf("nfs_boot: set ifmask, error=%d\n", error);
goto out;
}
goto gwok;
nogwrepl:
#endif
#ifdef NFS_BOOT_GATEWAY
/*
* Note: we normally ignore the gateway address returned
* by the "bootparam/whoami" RPC above, because many old
* bootparam servers supply a bogus gateway value.
*
* These deficiencies in the bootparam RPC interface are
* circumvented by using the bootparam/getfile RPC. The
* parameter "gateway" is requested, and if its returned,
* we use the "server" part of the reply as the gateway,
* and use the "pathname" part of the reply as the mask.
* (The mask comes to us as a string.)
*/
if (gw_ip.s_addr) {
/* Our caller will add the route. */
nd->nd_gwip = gw_ip;
*flags |= NFS_BOOT_HAS_GWIP;
}
#endif
delout:
if (error)
(void) nfs_boot_deladdress(ifp, lwp, my_ip.s_addr);
out:
if (error) {
(void) nfs_boot_ifupdown(ifp, lwp, 0);
nfs_boot_flushrt(ifp);
}
#ifndef NFS_BOOTPARAM_NOGATEWAY
gwok:
if (gw_ndm)
kmem_free(gw_ndm, sizeof(*gw_ndm));
#endif
if ((*flags & NFS_BOOT_ALLINFO) != NFS_BOOT_ALLINFO)
return error ? error : EADDRNOTAVAIL;
return (error);
}
static int
net_getparams(int sock)
{
char buf[MAXHOSTNAMELEN];
char temp[FNAME_SIZE];
struct iodesc *d;
int i;
n_long smask;
#ifdef SUPPORT_BOOTP
/*
* Try to get boot info using BOOTP. If we succeed, then
* the server IP address, gateway, and root path will all
* be initialized. If any remain uninitialized, we will
* use RARP and RPC/bootparam (the Sun way) to get them.
*/
if (try_bootp)
bootp(sock, BOOTP_NONE);
if (myip.s_addr != 0)
goto exit;
if (debug)
printf("net_open: BOOTP failed, trying RARP/RPC...\n");
#endif
/*
* Use RARP to get our IP address. This also sets our
* netmask to the "natural" default for our address.
*/
if (rarp_getipaddress(sock)) {
printf("net_open: RARP failed\n");
return (EIO);
}
printf("net_open: client addr: %s\n", inet_ntoa(myip));
/* Get our hostname, server IP address, gateway. */
if (bp_whoami(sock)) {
printf("net_open: bootparam/whoami RPC failed\n");
return (EIO);
}
printf("net_open: client name: %s\n", hostname);
/*
* Ignore the gateway from whoami (unreliable).
* Use the "gateway" parameter instead.
*/
smask = 0;
gateip.s_addr = 0;
if (bp_getfile(sock, "gateway", &gateip, buf) == 0) {
/* Got it! Parse the netmask. */
smask = ip_convertaddr(buf);
}
if (smask) {
netmask = smask;
printf("net_open: subnet mask: %s\n", intoa(netmask));
}
if (gateip.s_addr)
printf("net_open: net gateway: %s\n", inet_ntoa(gateip));
/* Get the root server and pathname. */
if (bp_getfile(sock, "root", &rootip, rootpath)) {
printf("net_open: bootparam/getfile RPC failed\n");
return (EIO);
}
exit:
/*
* If present, strip the server's address off of the rootpath
* before passing it along. This allows us to be compatible with
* the kernel's diskless (BOOTP_NFSROOT) booting conventions
*/
for (i = 0; i < FNAME_SIZE && rootpath[i] != '\0'; i++)
if (rootpath[i] == ':')
break;
if (i && i != FNAME_SIZE && rootpath[i] == ':') {
rootpath[i++] = '\0';
if (inet_addr(&rootpath[0]) != INADDR_NONE)
rootip.s_addr = inet_addr(&rootpath[0]);
memcpy(&temp[0], &rootpath[i], strlen(&rootpath[i])+1);
memcpy(&rootpath[0], &temp[0], strlen(&rootpath[i])+1);
}
printf("net_open: server addr: %s\n", inet_ntoa(rootip));
printf("net_open: server path: %s\n", rootpath);
d = socktodesc(sock);
snprintf(temp, sizeof(temp), "%6D", d->myea, ":");
setenv("boot.netif.ip", inet_ntoa(myip), 1);
setenv("boot.netif.netmask", intoa(netmask), 1);
setenv("boot.netif.gateway", inet_ntoa(gateip), 1);
setenv("boot.netif.hwaddr", temp, 1);
setenv("boot.nfsroot.server", inet_ntoa(rootip), 1);
setenv("boot.nfsroot.path", rootpath, 1);
return (0);
}
int
net_devinit(struct open_file *f, struct netif_driver *drv, u_char *eaddr) {
static struct netif best_if;
struct iodesc *s;
int r;
if (inited)
return 0;
/* find a free socket */
s = &desc;
memset(s, 0, sizeof(*s));
best_if.nif_driver = drv;
s->io_netif = &best_if;
memcpy(s->myea, eaddr, 6);
/*
* Get info for NFS boot: our IP address, our hostname,
* server IP address, and our root path on the server.
* There are two ways to do this: The old, Sun way,
* and the more modern, BOOTP way. (RFC951, RFC1048)
*/
#ifdef SUPPORT_BOOTP
/* Get boot info using BOOTP way. (RFC951, RFC1048) */
printf("Trying BOOTP\n");
bootp(0);
if (myip.s_addr) {
printf("Using IP address: %s\n", inet_ntoa(myip));
printf("myip: %s (%s)\n", hostname, inet_ntoa(myip));
} else
#endif /* SUPPORT_BOOTP */
{
#ifdef SUPPORT_BOOTPARAMS
/* Get boot info using RARP and Sun bootparams. */
printf("Trying BOOTPARAMS\n");
/* Get our IP address. (rarp.c) */
if (rarp_getipaddress(0) == -1)
return (errno);
printf("boot: client IP address: %s\n", inet_ntoa(myip));
/* Get our hostname, server IP address. */
if (bp_whoami(0))
return (errno);
printf("boot: client name: %s\n", hostname);
/* Get the root pathname. */
if (bp_getfile(0, "root", &rootip, rootpath))
return (errno);
#endif
}
printf("root addr=%s path=%s\n", inet_ntoa(rootip), rootpath);
f->f_devdata = s;
/* Get the NFS file handle (mount). */
r = nfs_mount(0, rootip, rootpath);
if (r)
return r;
inited = 1;
return 0;
}
/*
* Called by devopen after it sets f->f_dev to our devsw entry.
* This opens the low-level device and sets f->f_devdata.
*/
int
net_open(struct open_file *f, ...)
{
int error = 0;
#ifdef NET_DEBUG
if (netdev_sock != -1)
panic("net_open");
#endif
/* Find network interface. */
if ((netdev_sock = netif_open()) < 0)
return (ENXIO);
#ifdef SUPPORT_BOOTP
printf("configure network...trying bootp\n");
/* Get boot info using BOOTP way. (RFC951, RFC1048) */
bootp(netdev_sock);
#endif
if (myip.s_addr != INADDR_ANY) { /* got bootp reply or
* manually set */
#ifdef TFTP_HACK
int num, i;
/* XXX (some) tftp servers don't like leading "/" */
for (num = 0; bootfile[num] == '/'; num++);
for (i = 0; (bootfile[i] = bootfile[i + num]) != 0; i++);
#endif
printf("boot: client IP address: %s\n",
inet_ntoa(myip));
printf("boot: client name: %s\n", hostname);
} else {
#ifdef SUPPORT_RARP
/*
* no answer, Get boot info using RARP and Sun
* bootparams.
*/
printf("configure network...trying rarp\n");
/* Get our IP address. (rarp.c) */
if (rarp_getipaddress(netdev_sock)) {
error = EIO;
goto bad;
}
printf("boot: client IP address: %s\n",
inet_ntoa(myip));
#ifdef SUPPORT_BOOTPARAM
/* Get our hostname, server IP address. */
if (!bp_whoami(netdev_sock)) {
printf("boot: client name: %s\n", hostname);
/* Get the root pathname. */
bp_getfile(netdev_sock, "root", &rootip,
rootpath);
}
#else
/*
* else fallback: use rarp server address
*/
#endif
#else /* no SUPPORT_RARP */
error = EIO;
goto bad;
#endif
}
printf("boot: server: %s, rootpath: %s, bootfile: %s\n",
inet_ntoa(rootip), rootpath, bootfile);
f->f_devdata = &netdev_sock;
return (error);
bad:
printf("net_open failed\n");
netif_close(netdev_sock);
return (error);
}
/*
* Called with an empty nfs_diskless struct to be filled in.
*/
int
nfs_boot_init(struct nfs_diskless *nd)
{
struct sockaddr_in bp_sin;
boolean_t do_bpwhoami = TRUE;
boolean_t do_bpgetfile = TRUE;
int error = 0;
struct in_addr my_ip;
struct sockaddr_in * sin_p;
/* make sure mbuf constants are set up */
if (!nfs_mbuf_mhlen)
nfs_mbuf_init();
/* by this point, networking must already have been configured */
if (netboot_iaddr(&my_ip) == FALSE) {
printf("nfs_boot: networking is not initialized\n");
error = ENXIO;
goto failed;
}
/* get the root path information */
MALLOC_ZONE(nd->nd_root.ndm_path, char *, MAXPATHLEN, M_NAMEI, M_WAITOK);
if (!nd->nd_root.ndm_path) {
printf("nfs_boot: can't allocate root path buffer\n");
error = ENOMEM;
goto failed;
}
MALLOC_ZONE(nd->nd_root.ndm_mntfrom, char *, MAXPATHLEN, M_NAMEI, M_WAITOK);
if (!nd->nd_root.ndm_mntfrom) {
printf("nfs_boot: can't allocate root mntfrom buffer\n");
error = ENOMEM;
goto failed;
}
sin_p = &nd->nd_root.ndm_saddr;
bzero((caddr_t)sin_p, sizeof(*sin_p));
sin_p->sin_len = sizeof(*sin_p);
sin_p->sin_family = AF_INET;
if (netboot_rootpath(&sin_p->sin_addr, nd->nd_root.ndm_host,
sizeof(nd->nd_root.ndm_host),
nd->nd_root.ndm_path, MAXPATHLEN) == TRUE) {
do_bpgetfile = FALSE;
do_bpwhoami = FALSE;
}
nd->nd_private.ndm_saddr.sin_addr.s_addr = 0;
if (do_bpwhoami) {
struct in_addr router;
/*
* Get client name and gateway address.
* RPC: bootparam/whoami
* Use the old broadcast address for the WHOAMI
* call because we do not yet know our netmask.
* The server address returned by the WHOAMI call
* is used for all subsequent booptaram RPCs.
*/
bzero((caddr_t)&bp_sin, sizeof(bp_sin));
bp_sin.sin_len = sizeof(bp_sin);
bp_sin.sin_family = AF_INET;
bp_sin.sin_addr.s_addr = INADDR_BROADCAST;
hostnamelen = MAXHOSTNAMELEN;
router.s_addr = 0;
error = bp_whoami(&bp_sin, &my_ip, &router);
if (error) {
printf("nfs_boot: bootparam whoami, error=%d", error);
goto failed;
}
printf("nfs_boot: BOOTPARAMS server " IP_FORMAT "\n",
IP_LIST(&bp_sin.sin_addr));
printf("nfs_boot: hostname %s\n", hostname);
}
if (do_bpgetfile) {
error = bp_getfile(&bp_sin, "root", &nd->nd_root.ndm_saddr,
nd->nd_root.ndm_host, nd->nd_root.ndm_path);
if (error) {
printf("nfs_boot: bootparam get root: %d\n", error);
goto failed;
}
}
#if !defined(NO_MOUNT_PRIVATE)
if (do_bpgetfile) { /* get private path */
MALLOC_ZONE(nd->nd_private.ndm_path, char *, MAXPATHLEN, M_NAMEI, M_WAITOK);
if (!nd->nd_private.ndm_path) {
printf("nfs_boot: can't allocate private path buffer\n");
error = ENOMEM;
goto failed;
}
MALLOC_ZONE(nd->nd_private.ndm_mntfrom, char *, MAXPATHLEN, M_NAMEI, M_WAITOK);
if (!nd->nd_private.ndm_mntfrom) {
printf("nfs_boot: can't allocate private host buffer\n");
error = ENOMEM;
goto failed;
}
error = bp_getfile(&bp_sin, "private",
&nd->nd_private.ndm_saddr,
nd->nd_private.ndm_host,
nd->nd_private.ndm_path);
if (!error) {
char * check_path = NULL;
MALLOC_ZONE(check_path, char *, MAXPATHLEN, M_NAMEI, M_WAITOK);
if (!check_path) {
printf("nfs_boot: can't allocate check_path buffer\n");
error = ENOMEM;
goto failed;
}
snprintf(check_path, MAXPATHLEN, "%s/private", nd->nd_root.ndm_path);
if ((nd->nd_root.ndm_saddr.sin_addr.s_addr
== nd->nd_private.ndm_saddr.sin_addr.s_addr)
&& (strncmp(check_path, nd->nd_private.ndm_path, MAXPATHLEN) == 0)) {
/* private path is prefix of root path, don't mount */
nd->nd_private.ndm_saddr.sin_addr.s_addr = 0;
}
FREE_ZONE(check_path, MAXPATHLEN, M_NAMEI);
}
else {
/* private key not defined, don't mount */
nd->nd_private.ndm_saddr.sin_addr.s_addr = 0;
}
}
else {