sysadmin/ipxe
1
0
Fork 0
mirror of https://github.com/ipxe/ipxe synced 2025-12-26 09:32:33 +03:00
Code Issues Packages Projects Releases Wiki Activity

[pxe] Add PXENV_FILE_CMDLINE API call

Browse Source 
Allow a PXE NBP to obtain its command line (if any) via the new PXE
API call PXENV_FILE_CMDLINE.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2012-07-11 18:16:13 +01:00
parent 9e5152e095
commit a814eff38e
4 changed files with 69 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
src/arch/i386/interface/pxe/pxe_file.c
View File

@@ -232,6 +232,42 @@ static PXENV_EXIT_t pxenv_file_exec ( struct s_PXENV_FILE_EXEC *file_exec ) {
return PXENV_EXIT_SUCCESS;
}
/**
* FILE CMDLINE
*
* @v file_cmdline Pointer to a struct s_PXENV_FILE_CMDLINE
* @v s_PXENV_FILE_CMDLINE::Buffer Buffer to contain command line
* @v s_PXENV_FILE_CMDLINE::BufferSize Size of buffer
* @ret #PXENV_EXIT_SUCCESS Command was executed successfully
* @ret #PXENV_EXIT_FAILURE Command was not executed successfully
* @ret s_PXENV_FILE_EXEC::Status PXE status code
* @ret s_PXENV_FILE_EXEC::BufferSize Length of command line (including NUL)
*
*/
static PXENV_EXIT_t
pxenv_file_cmdline ( struct s_PXENV_FILE_CMDLINE *file_cmdline ) {
userptr_t buffer;
size_t max_len;
size_t len;
DBG ( "PXENV_FILE_CMDLINE to %04x:%04x+%04x \"%s\"\n",
file_cmdline->Buffer.segment, file_cmdline->Buffer.offset,
file_cmdline->BufferSize, pxe_cmdline );
buffer = real_to_user ( file_cmdline->Buffer.segment,
file_cmdline->Buffer.offset );
len = file_cmdline->BufferSize;
max_len = ( pxe_cmdline ?
( strlen ( pxe_cmdline ) + 1 /* NUL */ ) : 0 );
if ( len > max_len )
len = max_len;
copy_to_user ( buffer, 0, pxe_cmdline, len );
file_cmdline->BufferSize = max_len;
file_cmdline->Status = PXENV_STATUS_SUCCESS;
return PXENV_EXIT_SUCCESS;
}
/**
* FILE API CHECK
*
@@ -298,6 +334,8 @@ struct pxe_api_call pxe_file_api[] __pxe_api_call = {
struct s_PXENV_GET_FILE_SIZE ),
PXE_API_CALL ( PXENV_FILE_EXEC, pxenv_file_exec,
struct s_PXENV_FILE_EXEC ),
PXE_API_CALL ( PXENV_FILE_CMDLINE, pxenv_file_cmdline,
struct s_PXENV_FILE_CMDLINE ),
PXE_API_CALL ( PXENV_FILE_API_CHECK, pxenv_file_api_check,
struct s_PXENV_FILE_API_CHECK ),
};