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Added BOOTP VendorID -> FileName Mapping

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Added optional support for mapping BOOTP requests from specific vendorIDs to specific filenames.
 This is configured by adding a [bootp_mapping] section, and entries for each mapping in the form:
   vendor_id = filename

 For example, to support the multi-stage AM335x BOOTP process:
 [boot_mapping]
 AM335x ROM = u-boot-spl-restore.bin
 AM335x SPL U-BOOT = u-boot-restore.img

 If no mapping entry is found for a VendorID, then the filename specified in the [bootp] section is used.
This commit is contained in:
Oliver Kent 2017-07-07 16:10:17 +01:00
parent efe3ff3b40
commit 2d45b68cf6
1 changed files with 6 additions and 3 deletions
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9
pybootd/pxed.py
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@ -180,6 +180,7 @@ class BootpServer:
name_ = PRODUCT_NAME.split('-')
name_[0] = 'bootp'
self.bootp_section = '_'.join(name_)
self.bootp_mapping = "bootp_mapping"
self.pool_start = self.config.get(self.bootp_section, 'pool_start')
if not self.pool_start:
raise BootpError('Missing pool_start definition')
@ -520,9 +521,11 @@ class BootpServer:
'servername', 'unknown'),
self.config.get(self.bootp_section,
'domain', 'localdomain')])
# file
buf[BOOTP_FILE] = self.config.get(self.bootp_section,
'boot_file', '\x00')
# Grab the default bootp file name
default_file = self.config.get(self.bootp_section, 'boot_file', '\x00')
# Try and grab bootp file name mapped to this class id if an entry exists, otherwise use default file
buf[BOOTP_FILE] = self.config.get(self.bootp_mapping, options.get(60, ""), default_file)
if not dhcp_msg_type:
self.log.warn('No DHCP message type found, discarding request')