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[pxe] Obey lists of PXE Boot Servers and associated Discovery Control bits

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Various combinations of options 43.6, 43.7 and 43.8 dictate which
servers we send Boot Server Discovery requests to, and which servers
we should accept responses from.  Obey these options, and remove the
explicit specification of a single Boot Server from start_pxebs() and
dependent functions.
This commit is contained in:
Michael Brown
2009-02-05 09:30:32 +00:00
parent ff2b308506
commit 881f1f59ef
6 changed files with 195 additions and 62 deletions
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17
src/hci/commands/dhcp_cmd.c
View File

@@ -109,7 +109,7 @@ static int dhcp_exec ( int argc, char **argv ) {
*/
static void pxebs_syntax ( char **argv ) {
printf ( "Usage:\n"
" %s <interface> <discovery_ip> <server_type>\n"
" %s <interface> <server_type>\n"
"\n"
"Perform PXE Boot Server discovery\n",
argv[0] );
@@ -128,10 +128,8 @@ static int pxebs_exec ( int argc, char **argv ) {
{ NULL, 0, NULL, 0 },
};
const char *netdev_txt;
const char *pxe_server_txt;
const char *pxe_type_txt;
struct net_device *netdev;
struct in_addr pxe_server;
unsigned int pxe_type;
char *end;
int c;
@@ -148,15 +146,12 @@ static int pxebs_exec ( int argc, char **argv ) {
return 1;
}
}
/* Need exactly one interface name remaining after the options */
if ( optind != ( argc - 3 ) ) {
if ( optind != ( argc - 2 ) ) {
pxebs_syntax ( argv );
return 1;
}
netdev_txt = argv[optind];
pxe_server_txt = argv[ optind + 1 ];
pxe_type_txt = argv[ optind + 2 ];
pxe_type_txt = argv[ optind + 1 ];
/* Parse arguments */
netdev = find_netdev ( netdev_txt );
@@ -164,10 +159,6 @@ static int pxebs_exec ( int argc, char **argv ) {
printf ( "No such interface: %s\n", netdev_txt );
return 1;
}
if ( inet_aton ( pxe_server_txt, &pxe_server ) == 0 ) {
printf ( "Bad discovery IP address: %s\n", pxe_server_txt );
return 1;
}
pxe_type = strtoul ( pxe_type_txt, &end, 0 );
if ( *end ) {
printf ( "Bad server type: %s\n", pxe_type_txt );
@@ -175,7 +166,7 @@ static int pxebs_exec ( int argc, char **argv ) {
}
/* Perform Boot Server Discovery */
if ( ( rc = pxebs ( netdev, pxe_server, pxe_type ) ) != 0 ) {
if ( ( rc = pxebs ( netdev, pxe_type ) ) != 0 ) {
printf ( "Could not discover boot server on %s: %s\n",
netdev->name, strerror ( rc ) );
return 1;