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Put common autoload code into auto_load() function

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This is a small clean-up patch.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Eric Bénard <eric@eukrea.com>
This commit is contained in:
Simon Glass 2011-06-13 16:13:12 -07:00 committed by Remy Bohmer
parent 4fdbcf8113
commit 093498669e
1 changed files with 33 additions and 43 deletions
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76
net/bootp.c
View file

@ -138,6 +138,36 @@ static int truncate_sz (const char *name, int maxlen, int curlen)
return (curlen);
}
/*
* Check if autoload is enabled. If so, use either NFS or TFTP to download
* the boot file.
*/
static void auto_load(void)
{
const char *s = getenv("autoload");
if (s != NULL) {
if (*s == 'n') {
/*
* Just use BOOTP to configure system;
* Do not use TFTP to load the bootfile.
*/
NetState = NETLOOP_SUCCESS;
return;
}
#if defined(CONFIG_CMD_NFS)
if (strcmp(s, "NFS") == 0) {
/*
* Use NFS to load the bootfile.
*/
NfsStart();
return;
}
#endif
TftpStart();
}
}
#if !defined(CONFIG_CMD_DHCP)
static void BootpVendorFieldProcess (u8 * ext)
@ -289,6 +319,7 @@ static void BootpVendorProcess (u8 * ext, int size)
debug("NetNtpServerIP : %pI4\n", &NetNtpServerIP);
#endif
}
/*
* Handle a BOOTP received packet.
*/
@ -297,7 +328,6 @@ BootpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src,
unsigned len)
{
Bootp_t *bp;
char *s;
debug("got BOOTP packet (src=%d, dst=%d, len=%d want_len=%zu)\n",
src, dest, len, sizeof (Bootp_t));
@ -324,26 +354,7 @@ BootpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src,
debug("Got good BOOTP\n");
if ((s = getenv("autoload")) != NULL) {
if (*s == 'n') {
/*
* Just use BOOTP to configure system;
* Do not use TFTP to load the bootfile.
*/
NetState = NETLOOP_SUCCESS;
return;
#if defined(CONFIG_CMD_NFS)
} else if (strcmp(s, "NFS") == 0) {
/*
* Use NFS to load the bootfile.
*/
NfsStart();
return;
#endif
}
}
TftpStart();
auto_load();
}
#endif
@ -922,34 +933,13 @@ DhcpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src,
debug("DHCP State: REQUESTING\n");
if ( DhcpMessageType((u8 *)bp->bp_vend) == DHCP_ACK ) {
char *s;
if (NetReadLong((ulong*)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC))
DhcpOptionsProcess((u8 *)&bp->bp_vend[4], bp);
BootpCopyNetParams(bp); /* Store net params from reply */
dhcp_state = BOUND;
printf ("DHCP client bound to address %pI4\n", &NetOurIP);
/* Obey the 'autoload' setting */
if ((s = getenv("autoload")) != NULL) {
if (*s == 'n') {
/*
* Just use BOOTP to configure system;
* Do not use TFTP to load the bootfile.
*/
NetState = NETLOOP_SUCCESS;
return;
#if defined(CONFIG_CMD_NFS)
} else if (strcmp(s, "NFS") == 0) {
/*
* Use NFS to load the bootfile.
*/
NfsStart();
return;
#endif
}
}
TftpStart();
auto_load();
return;
}
break;