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Request Etherboot encapsulated options.

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Parameter request list is yet another option that ISC dhcpd ignores
unless it's in the main options block.

Fix logic error in parsing file and sname fields.
This commit is contained in:
Michael Brown 2006-07-20 14:14:41 +00:00
parent b26806cf18
commit 3085f03ad4
1 changed files with 5 additions and 3 deletions
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8
src/net/udp/dhcp.c
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@ -54,7 +54,8 @@ static uint8_t dhcp_request_options_data[] = {
DHCP_VENDOR_CLASS_ID,
DHCP_STRING ( 'E', 't', 'h', 'e', 'r', 'b', 'o', 'o', 't' ),
DHCP_PARAMETER_REQUEST_LIST,
DHCP_OPTION ( DHCP_SUBNET_MASK, DHCP_ROUTERS, DHCP_HOST_NAME ),
DHCP_OPTION ( DHCP_SUBNET_MASK, DHCP_ROUTERS, DHCP_HOST_NAME,
DHCP_EB_ENCAP ),
DHCP_END
};
@ -125,6 +126,7 @@ static int set_dhcp_packet_option ( struct dhcp_packet *dhcppkt,
return 0;
case DHCP_MESSAGE_TYPE:
case DHCP_REQUESTED_ADDRESS:
case DHCP_PARAMETER_REQUEST_LIST:
/* These options have to be within the main options
* block. This doesn't seem to be required by the
* RFCs, but at least ISC dhcpd refuses to recognise
@ -438,10 +440,10 @@ static struct dhcp_option_block * dhcp_parse ( struct dhcphdr *dhcphdr,
/* Merge in "file" and "sname" fields */
merge_dhcp_field ( options, dhcphdr->file, sizeof ( dhcphdr->file ),
( ( overloading & DHCP_OPTION_OVERLOAD_FILE ) ?
DHCP_BOOTFILE_NAME : 0 ) );
0 : DHCP_BOOTFILE_NAME ) );
merge_dhcp_field ( options, dhcphdr->sname, sizeof ( dhcphdr->sname ),
( ( overloading & DHCP_OPTION_OVERLOAD_SNAME ) ?
DHCP_TFTP_SERVER_NAME : 0 ) );
0 : DHCP_TFTP_SERVER_NAME ) );
/* Set magic options for "yiaddr" and "siaddr", if present */
if ( dhcphdr->yiaddr.s_addr ) {