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 Linux Sandbox-A 4.4.0-210-generic #242-Ubuntu SMP Fri Apr 16 09:57:56 UTC 2021 x86_64
 Apache/2.4.18 (Ubuntu)
 68.183.124.220
 Cant read /etc/named.conf
  / var / www / html /   [ drwxr-sr-x ]   [ HOME ]
Name Type Size Owner/Group Permission Last Modified Actions
. dir - gavin/www-data drwxr-sr-x 2024-12-15 11:41:30
.. dir - root/root drwxr-xr-x 2019-08-25 02:29:45
.sucuriquarantine dir - root/www-data drwxr-sr-x 2024-05-24 05:31:33
home dir - gavin/www-data drwxrwsr-x 2026-05-23 05:31:31
worksheets dir - gavin/www-data drwxrwsr-x 2026-05-23 05:31:31
wp-admin dir - gavin/www-data drwxr-sr-x 2025-08-29 03:10:31
wp-content dir - gavin/www-data drwxrwsr-x 2026-05-23 05:31:31
wp-includes dir - gavin/www-data drwxr-sr-x 2021-06-27 11:01:30
.htaccess text/plain 201 B root/www-data -rw-r--r-- 2021-06-24 04:05:20
agent-contact-1.JPG image/jpeg 22.78 KB gavin/www-data -rw-rw-r-- 2022-01-31 05:13:10
circle-16.png image/png 268 B gavin/www-data -rw-rw-r-- 2021-01-11 04:23:00
index.html text/html 11.06 KB gavin/www-data -rw-r--r-- 2019-08-25 02:29:47
index.php text/x-php 420 B gavin/www-data -rw-r--r-- 2017-11-30 11:11:00
license.txt text/plain 19.47 KB gavin/www-data -rw-r--r-- 2019-01-01 08:37:49
map.php text/html 1012 B gavin/www-data -rw-rw-r-- 2021-01-01 03:50:38
pin-8-16.png image/png 309 B gavin/www-data -rw-rw-r-- 2021-01-11 04:38:33
pin-8-24.png image/png 499 B gavin/www-data -rw-rw-r-- 2021-01-11 04:40:01
pin-blue-1.png image/png 28.16 KB gavin/www-data -rw-rw-r-- 2022-01-27 09:10:36
pin-green-1.png image/png 12.71 KB gavin/www-data -rw-rw-r-- 2022-01-27 09:23:52
pin-house-red-2.png image/png 1.36 KB gavin/www-data -rw-rw-r-- 2022-01-30 09:18:10
pin-house-red-3.png image/png 2.49 KB gavin/www-data -rw-rw-r-- 2022-01-30 09:20:50
readme.html text/html 7.27 KB gavin/www-data -rw-r--r-- 2019-04-08 10:59:56
wallpaper1.jpg image/jpeg 58.99 KB gavin/www-data -rw-rw-r-- 2022-01-29 05:15:06
wallpaper2.jpg image/jpeg 788.8 KB gavin/www-data -rw-rw-r-- 2022-02-01 11:27:14
wp-activate.php text/x-php 6.76 KB gavin/www-data -rw-r--r-- 2019-01-12 06:41:52
wp-blog-header.php text/x-php 369 B gavin/www-data -rw-r--r-- 2017-11-30 11:11:00
wp-comments-post.php text/x-php 2.23 KB gavin/www-data -rw-r--r-- 2019-01-21 01:34:51
wp-config-sample.php text/x-php 2.83 KB gavin/www-data -rw-r--r-- 2020-10-24 04:07:41
wp-config.php text/x-php 3.62 KB gavin/www-data -rw-r--r-- 2022-04-20 01:23:49
wp-cron.php text/x-php 3.76 KB gavin/www-data -rw-r--r-- 2019-01-09 08:37:51
wp-links-opml.php text/x-php 2.44 KB gavin/www-data -rw-r--r-- 2019-01-16 05:29:49
wp-load.php text/x-php 3.23 KB gavin/www-data -rw-r--r-- 2017-11-30 11:11:00
wp-login.php text/x-php 38.62 KB gavin/www-data -rw-r--r-- 2019-06-10 01:34:45
wp-mail.php text/x-php 8.21 KB gavin/www-data -rw-r--r-- 2017-11-30 11:11:00
wp-settings.php text/x-php 18.52 KB gavin/www-data -rw-r--r-- 2019-03-28 07:04:51
wp-signup.php text/x-php 30.36 KB gavin/www-data -rw-r--r-- 2019-01-16 04:51:52
wp-trackback.php text/x-php 4.65 KB gavin/www-data -rw-r--r-- 2017-11-30 11:11:00
xmlrpc.php text/x-php 3 KB gavin/www-data -rw-r--r-- 2018-08-17 01:51:36
© BlackDragon
403WebShell
403Webshell
Server IP : 68.183.124.220  /  Your IP : 216.73.216.228
Web Server : Apache/2.4.18 (Ubuntu)
System : Linux Sandbox-A 4.4.0-210-generic #242-Ubuntu SMP Fri Apr 16 09:57:56 UTC 2021 x86_64
User : gavin ( 1000)
PHP Version : 7.0.33-0ubuntu0.16.04.16
Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,
MySQL : OFF  |  cURL : ON  |  WGET : ON  |  Perl : ON  |  Python : ON  |  Sudo : ON  |  Pkexec : ON
Directory :  /usr/src/linux-headers-4.4.0-204/scripts/

Upload File :
current_dir [ Writeable ] document_root [ Writeable ]

 

Command :

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Current File : /usr/src/linux-headers-4.4.0-204/scripts/ubuntu-retpoline-extract-one
#!/bin/bash

exec </dev/null

object="$1"
src="$2"
bit16="$3"

SECTION=".discard.retpoline_safe"

# Form an associative lookup for the symbol numbers in the ELF symbol table.
# Uses 8 character 0 expanded hexadecimal key for ease of consumption.
__symbolmap_init()
{
	readelf -W --syms "$1" |
		awk '($4 == "SECTION" && $1 ~ /^[0-9]*:/) { printf("%08x %08x\n", int($1), int($7)); }' | \
	while read symbol_num section_num
	do
		echo "symbolmap_$symbol_num='$section_num'"
	done
}
symbolmap_init()
{
	eval $(__symbolmap_init "$1")
}
symbolmap()
{
	eval RET="\$symbolmap_$1"
	if [ "$RET" = '' ]; then
		echo "symbolmap: $1: invalid section" 1>&2
		exit 1
	fi
}

# Form an associative lookup for the section numbers in the ELF symbol table.
# Uses 8 character 0 expanded hexadecimal key for ease of consumption.
__sectionmap_init()
{
	readelf -W --headers "$1" | \
		awk '
						{ sub("\\[", ""); sub("\\]", ""); }
                        ($1 ~ /^[0-9][0-9]*/)   { printf("%08x %s %s %s\n", int($1), $2, $3, $4); }
		' | \
	{
		while read section_num section_name section_type section_vma
		do
			echo "sectionmap_$section_num='$section_name'"
			echo "sectionvma_$section_num='$section_vma'"
			case "$section_type" in
			REL|RELA) section_relocation="$section_type" ;;
			esac
		done
		echo "section_relocation='$section_relocation'"
	}
}
sectionmap_init()
{
	eval $(__sectionmap_init "$1")
}
sectionmap()
{
	eval RET="\$sectionmap_$1"
	if [ "$RET" = '' ]; then
		echo "sectionmap: $1: invalid section" 1>&2
		exit 1
	fi
}
sectionvma()
{
	eval RET="\$sectionvma_$1"
	if [ "$RET" = '' ]; then
		echo "sectionvma: $1: invalid section" 1>&2
		exit 1
	fi
}

# Read and parse the hex-dump output.
hex="[0-9a-f]"
hex_8="$hex$hex$hex$hex$hex$hex$hex$hex"
hexspc="[0-9a-f ]"
hexspc_8="$hexspc$hexspc$hexspc$hexspc$hexspc$hexspc$hexspc$hexspc"

raw32()
{
	readelf --hex-dump "$2" "$1" 2>/dev/null |
	sed \
		-e '/^Hex/d' -e '/^$/d' -e '/^ *NOTE/d' \
		-e 's/  *[^ ][^ ]*  *\('"$hex_8"'\) \('"$hexspc_8"'\) \('"$hexspc_8"'\) \('"$hexspc_8"'\) .*/\1 \2 \3 \4 /' \
		-e 's/\('"$hex$hex"'\)\('"$hex$hex"'\)\('"$hex$hex"'\)\('"$hex$hex"'\) /\4\3\2\1 /g' \
		-e 's/ $//g' -e 's/ /\n/g'
}
#-e 's/\([^ ][^ ][^ ][^ ][^ ][^ ][^ ][^ ]\) \([^ ][^ ][^ ][^ ][^ ][^ ][^ ][^ ]\) /\2\1 /g' \

rela()
{
	#file="$(basename "$1")"
	file="$1"

	# Read relocation information for a 64bit binary.  Each relocation entry
	# is 3 long longs so we collect 6 quads here.  Note that the dump is in
	# listed in increasing byte order not withstanding the quad split.
	#
	# The record says to take the value of <symbol> add <symbol offset> and
	# shove that into <write offset> in the segment of the <symbol>.
	#
	# Format:
	#  <write offset>	64 bits
	#  <symbol number>	32 bits
	#  <relocation type>	32 bits
	#  <symbol offset>	64 bits
	raw32 "$1" ".rela$SECTION" | \
	{
		a1=''; a2=''; a3=''; a4=''; a5=''
		while read a6
		do
			[ "$a1" = '' ] && { a1="$a6"; continue; }
			[ "$a2" = '' ] && { a2="$a6"; continue; }
			[ "$a3" = '' ] && { a3="$a6"; continue; }
			[ "$a4" = '' ] && { a4="$a6"; continue; }
			[ "$a5" = '' ] && { a5="$a6"; continue; }

			#echo ">$a1< >$a2< >$a3< >$a4< >$a5< >$a6<" 1>&2
			#echo "type<$a3> symbol<$a4> offset<$a2$a1> addr<$a6a5>" 1>&2

			symbolmap "$a4"; section_num="$RET"
			#echo "section_num<$section_num>" 1>&2

			sectionmap "$section_num"; section="$RET"
			sectionvma "$section_num"; vma="$RET"
			#echo "section<$section> vma<$vma>" 1>&2

			# Adjust the segment addressing by the segment offset.
			printf -v addr "%u" "0x$a6$a5"
			printf -v vma "%u" "0x$vma"
			let offset="$addr + $vma"
			printf -v offset "%x" "$offset"

			echo "$file-$section-$offset"

			a1=''; a2=''; a3=''; a4=''; a5=''
		done
	} | sed -e 's/-00*\([0-9a-f]\)/-\1/'
}

# Form an associative lookup for the raw contents for an ELF section.
# Uses 8 character 0 expanded hexadecimal key for ease of consumption.
contentmap_init()
{
	raw32 "$1" "$2" >"$tmp"
	let offset=0
	while read value
	do
		printf -v offset_hex "%08x" $offset
		eval contentmap_$offset_hex=\'$value\'

		let offset="$offset + 4"
	done <"$tmp"
	rm -f "$tmp"
}
contentmap()
{
	eval RET="\$contentmap_$1"
	if [ "$RET" = '' ]; then
		echo "contentmap: $1: invalid offset" 1>&2
		exit 1
	fi
}

rel()
{
	# Load up the current contents of the $SECTION segment
	# as the offsets (see below) are recorded there and we will need
	# those to calculate the actuall address.
	contentmap_init "$1" "$SECTION"

	#file="$(basename "$1")"
	file="$1"

	# Read relocation information for a 32bit binary.  Each relocation entry
	# is 3 longs so we collect 3 quads here.  Note that the dump is in
	# listed in increasing byte order not withstanding the quad split.
	#
	# The record says to take the value of <symbol> and add that to the
	# existing contents of <write offset> in the segment of the <symbol>.
	#
	# Format:
	#  <write offset>	32 bits
	#  <symbol number>	24 bits
	#  <relocation type>	 8 bits
	raw32 "$1" ".rel$SECTION" | \
	{
		a1=''
		while read a2
		do
			[ "$a1" = '' ] && { a1="$a2"; continue; }

			#echo ">$a1< >$a2<"
			contentmap "$a1"; offset="$RET"
			symbolmap "00${a2%??}"; section_num="$RET"

			sectionmap "$section_num"; section="$RET"
			sectionvma "$section_num"; vma="$RET"
			#echo ">$a1< >$a2< >$offset< >$section<"

			echo "$file-$section-$offset"

			a1=''
		done
	} | sed -e 's/-00*\([0-9a-f]\)/-\1/'
}

tmp=$(mktemp --tmpdir "retpoline-extract-XXXXXX")

disassemble()
{
	local object="$1"
	local src="$2"
	local options="$3"
	local selector="$4"

	objdump $options --disassemble --no-show-raw-insn "$object" | \
	awk -F' ' '
		BEGIN				{ file="'"$object"'"; src="'"$src"'"; }
		/Disassembly of section/        { segment=$4; sub(":", "", segment); }
		/^[0-9a-f][0-9a-f]* <.*>:/      { tag=$0; sub(".*<", "", tag); sub(">.*", "", tag); }
		$0 ~ /(call|jmp)q?  *\*0x[0-9a-f]*\(%rip\)/ {
			next
		}
		$0 ~ /(call|jmp)q?  *\*.*%/ {
			sub(":", "", $1);
			if ('"$selector"') {
				offset=$1
				$1=tag
				print(file "-" segment "-" offset " " src " " segment " " $0);
			}
		}
	'
}

# Accumulate potentially vunerable indirect call/jmp sequences.  We do this
# by examining the raw disassembly for affected forms, recording the location
# of each.
case "$bit16" in
'')	disassemble "$object" "$src" '' 'segment != ".init.text"' ;;
*)	disassemble "$object" "$src" '--disassembler-options=i8086' 'segment != ".init.text" && segment != ".text32" && segment != ".text64"'
	disassemble "$object" "$src" '--disassembler-options=i386' 'segment == ".text32"'
	disassemble "$object" "$src" '--disassembler-options=x86-64' 'segment == ".text64"'
	;;
esac | sort -k 1b,1 >"$object.ur-detected"
[ ! -s "$object.ur-detected" ] && rm -f "$object.ur-detected"

# Load up the symbol table and section mappings.
symbolmap_init "$object"
sectionmap_init "$object"

# Accumulate annotated safe indirect call/jmp sequences.  We do this by examining
# the $SECTION sections (and their associated relocation information),
# each entry represents the address of an instruction which has been marked
# as ok.
case "$section_relocation" in
REL)	rel "$object" ;;
RELA)	rela "$object" ;;
esac | sort -k 1b,1 >"$object.ur-safe"
[ ! -s "$object.ur-safe" ] && rm -f "$object.ur-safe"

# We will perform the below join on the summarised and sorted fragments
# formed above.  This is performed in retpoline-check.
#join -v 1 -j 1 "$tmp.extracted" "$tmp.safe" | sed -s 's/[^ ]*  *//'

rm -f "$tmp"

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