NAME

nvmsplit - Qualcomm Atheros PLC Firmware Image File Slicer

SYNOPSIS

nvmsplit [options] file [file] [...]

DESCRIPTION

Extract all images from an Atheros binary image file, leaving the original files intact. Extracted images appear in files having the input file basename with sequence numbers indicating the relative position of the image within the original file. For example, image file abc.nvm might result in files abc-00.nvm, abc-01.nvm, abc-02.nvm and so on. Each output file is a valid, single-image file and so they can be combined using program nvmmerge.

Atheros image files consist of a chain of image headers, each followed by an image block. Image blocks can contain data, applets or programs. Atheros software reads the header chain and decides which images to download and execute based on information in the image headers. Tampering with image headers or images may void some contractual obligations made by Atheros.

This program is part of the Qualcomm Atheros Powerline Toolkit. See the AMP man page for an overview and installation instructions.

OPTIONS

-q

Suppress routine messages. This option has no effect at this time.

-v

Print component file names on stderr as they are created.

-?,--help

Print program help summary on stdout. This option takes precedence over other options on the command line.

-!,--version

Print program version information on stdout. This option takes precedence over other options on the command line. Use this option when sending screen dumps to Atheros Technical Support so that they know exactly which version of the Linux Toolkit you are using.

ARGUMENTS

file

The name of an Atheros image file. By convention, Atheros Image files have a .nvm file extension but this program does not enforce this convention. Invalid image files will be rejected causing the output to be incomplete.

EXAMPLES

The following example reads Atheros image file abc.nvm and creates one or more output files. Each file contains one image with associated header.

# nvmsplit abc.nvm -v
nvmsplit: abc.nvm --> abc-00.nvm
nvmsplit: abc.nvm --> abc-01.nvm
nvmsplit: abc.nvm --> abc-02.nvm
nvmsplit: abc.nvm --> abc-03.nvm

DISCLAIMER

Atheros image file structure and content is proprietary to Qualcomm Atheros, Ocala FL USA. Consequently, public information is not available. Qualcomm Atheros reserves the right to change file structure or content in future firmware releases without any obligation to notify or compensate users of this program. This program is reserved for use by Atheros Field Engineers. Use of this program may void some contractual obligations made by Atheros.

SEE ALSO

chknvm(1), int6k(1), int6kf(1), int6ktest(1), nvmmerge(1), setnvm(1)

CREDITS

Charles Maier