blob: 638cf6d72eaef2d98720a7cb832605380c2e889e [file] [log] [blame]
#!/bin/bash
#
#Header for BMC DUMP
#This script will create header file only for IBM systems.
#This script will generate generic IBM dump header format.
#
#Note: The dump header will be imposed on the dump file i.e
#<obmdump file>.tar.xz only on IBM specific systems, user needs to
#separate out the header before extracting the dump.
#
#Constants
declare -rx INVENTORY_MANAGER='xyz.openbmc_project.Inventory.Manager'
declare -rx INVENTORY_PATH='/xyz/openbmc_project/inventory/system'
declare -rx INVENTORY_ASSET_INT='xyz.openbmc_project.Inventory.Decorator.Asset'
declare -rx DUMP_HEADER_ENTRY_SIZE='516'
#Variables
declare -x FILE="/tmp/dumpheader_$EPOCHTIME"
declare -x dumpSize=$(ls -al $name_dir.tar.xz | awk '{print $5}')
declare -x modelNo=$(busctl get-property $INVENTORY_MANAGER $INVENTORY_PATH \
$INVENTORY_ASSET_INT Model | cut -d " " -f 2 | sed "s/^\(\"\)\(.*\)\1\$/\2/g")
declare -x serialNo=$(busctl get-property $INVENTORY_MANAGER $INVENTORY_PATH \
$INVENTORY_ASSET_INT SerialNumber | cut -d " " -f 2 | sed "s/^\(\"\)\(.*\)\1\$/\2/g")
declare -x dDay=$(date -d @$EPOCHTIME +'%Y%m%d%H%M%S')
#Function to add NULL
function add_null () {
local a=$1
printf '%*s' $a | tr ' ' "\0" >> $FILE
}
#Function to fetch the size of the dump
function dump_size () {
#Adding 516 bytes as the total dump size is dump tar size
#plus the dump header entry in this case
#dump_header and dump_entry
sizeDump=`expr $dumpSize + $DUMP_HEADER_ENTRY_SIZE`
printf -v hex "%x" $sizeDump
x=${#hex}
if [ $(($x % 2)) -eq 1 ]; then
hex=0$hex
x=${#hex}
fi
msize=`expr $x / 2`
msize=`expr 8 - $msize`
add_null $msize
for ((i=0;i<$x;i+=2));
do
printf \\x${hex:$i:2} >> $FILE
done
}
#Function to set dump id to 8 bytes format
function get_dump_id () {
x=${#dump_id}
nulltoadd=`expr 8 - $x`
printf '%*s' $nulltoadd | tr ' ' "0" >> $FILE
printf $dump_id >> $FILE
}
#Function to add virtual file directory entry, consists of below entries
####################FORMAT################
#Name Size(bytes) Value
#Entry Header 8 FILE
#Entry Size 2 0x0040
#Reserved 10 NULL
#Entry Type 2 0x0001
#File Name Prefix 2 0x000F
#Dump File Type 7 BMCDUMP
#Separator 1 .
#System Serial No 7 System serial number fetched from system
#Dump Identifier 8 Dump Identifier value fetched from dump
#Separator 1 .
#Time stamp 14 Form should be yyyymmddhhmmss
#Null Terminator 1 0x00
function dump_file_entry () {
printf "FILE " >> $FILE
add_null 1
printf '\x40' >> $FILE #Virtual file directory entry size
add_null 11
printf '\x01' >> $FILE
add_null 1
printf '\x0F' >> $FILE
printf "BMPDUMP.%s." "$serialNo" >> $FILE
get_dump_id
printf "." >> $FILE
printf $dDay >> $FILE #UTC time stamp
add_null 1
}
#Function section directory entry, consists of below entries
####################FORMAT################
#Name Size(bytes) Value
#Entry Header 8 SECTION
#Entry Size 2 0x0030
#Section Priority 2 0x0000
#Reserved 4 NULL
#Entry Flags 4 0x00000001
#Entry Types 2 0x0002
#Reserved 2 NULL
#Dump Size 8 Dump size in hex + dump header
#Optional Section 16 BMCDUMP
function dump_section_entry () {
printf "SECTION " >> $FILE
add_null 1
printf '\x30' >> $FILE #Section entry size
add_null 9
printf '\x01' >> $FILE
add_null 1
printf '\x02' >> $FILE
add_null 2
dump_size #Dump size
printf "BMCDUMP" >> $FILE
add_null 9
}
#Function to add dump header, consists of below entries
####################FORMAT################
#Name Size(bytes) Value
#Dump type 8 BMC DUMP
#Dump Request time 8 Dump request time stamp (in BCD)
#Dump Identifier 4 Dump identifer fetched from dump
#Dump version 2 0x0210
#Dump header 2 0x200
#Total dump size 8 Dump size + dump header
#Panel function 32 System model, feature, type and IPL mode
#System Name 32 System Name (in ASCII)
#Serial number 7 System serial number
#Reserved 1 NULL
#PLID 4 Comes from errorlog
#File Header Size 2 0x70
#Dump SRC Size 2 Dump SRC Size. Currently NULL
#DUMP SRC 356 DUMP SRC. Currently NULL
#Dump Req Type 4 Dump requester user interface type.
#Dump Req ID 32 Dump requester user interface ID
#Dump Req user ID 8 Dump requester user ID. Currently NULL
#
#TODO: Github issue #3707, to populate the unpopulated elements.
#Note: Unpopulated elements are listed below are set as NULL
#BCD time stamp
#PLID
#SRC size
#SRC dump
#Dump requestor
#Dump requestor user interface ID
#Dump Requester user ID
function dump_header () {
printf "BMC DUMP" >> $FILE
add_null 8 #BCD time stamp
add_null 4 #Dump Identifier
printf '\x02' >> $FILE #Dump version 0x0210
printf '\x10' >> $FILE
printf '\x02' >> $FILE #Dump header size 0x0200
add_null 1
dump_size #dump size
printf $modelNo >> $FILE
add_null 24
printf "Server-%s-SN-%s" "$modelNo" "$serialNo" >> $FILE
add_null 7
printf $serialNo >> $FILE
add_null 1
add_null 4 #PLID
printf '\x70' >> $FILE #File header size
add_null 2 # SRC size
add_null 356 # SRC dump
add_null 4 # Dump requester
add_null 32 # Dump requester user interface ID
add_null 8
}
#Function to add Dump entry, consists of below entries
####################FORMAT################
#Name Size(bytes) Value
#Dump Entry Version 1 0x01
#BMC Dump Valid 1 0x01
#No of Dump Entry 2 Number of Dump Entry
#
#TODO: Github issue #3707, to populate the unpopulated elements.
#Note: Unpopulated elements are listed below, currently are set as NULL
#Number of Dump Entry
function dump_entry () {
printf '\x01' >> $FILE #Dump entry version
printf '\x01' >> $FILE #Dump valid
add_null 2
}
#main function
function gen_header_package () {
dump_file_entry
dump_section_entry
dump_header
dump_entry
}
#Run gen_header_package
gen_header_package