sysadmin/ipxe
1
0
Fork 0
mirror of https://github.com/ipxe/ipxe synced 2025-12-27 10:02:42 +03:00
Code Issues Packages Projects Releases Wiki Activity

[settings] Formalise notion of setting applicability

Browse Source 
Expose a function setting_applies() to allow a caller to determine
whether or not a particular setting is applicable to a particular
settings block.

Restrict DHCP-backed settings blocks to accepting only DHCP-based
settings.

Restrict network device settings blocks to accepting only DHCP-based
settings and network device-specific settings such as "mac".

Inspired-by: Glenn Brown <glenn@myri.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2011-03-22 16:56:35 +00:00
parent 9215b7f4c0
commit f5fd4dec3b
12 changed files with 235 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
src/net/dhcpopts.c
View File

@@ -347,6 +347,18 @@ static int set_dhcp_option ( struct dhcp_options *options, unsigned int tag,
return offset;
}
/**
* Check applicability of DHCP option setting
*
* @v tag Setting tag number
* @ret applies Setting applies to this option block
*/
int dhcpopt_applies ( unsigned int tag ) {
return ( tag && ( tag <= DHCP_ENCAP_OPT ( DHCP_MAX_OPTION,
DHCP_MAX_OPTION ) ) );
}
/**
* Store value of DHCP option setting
*