From f882feb3bbf7f2930a915549887e56eee8160811 Mon Sep 17 00:00:00 2001
From: "Darrick J. Wong" <darrick.wong@oracle.com>
Date: Sat, 2 Aug 2014 23:50:34 -0400
Subject: [PATCH] tests: add regression tests for superblocks with bad
 checksums

Add regression tests to examine how e2fsck deals with random
superblock corruption such as obviously wrong fields and the checksum
itself being incorrect.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---
 tests/f_super_bad_csum/expect.1  |  13 +++++++++++++
 tests/f_super_bad_csum/expect.2  |   7 +++++++
 tests/f_super_bad_csum/image.bz2 | Bin 0 -> 1181 bytes
 tests/f_super_bad_csum/name      |   1 +
 tests/f_super_bad_csum/script    |  33 +++++++++++++++++++++++++++++++++
 5 files changed, 54 insertions(+)
 create mode 100644 tests/f_super_bad_csum/expect.1
 create mode 100644 tests/f_super_bad_csum/expect.2
 create mode 100644 tests/f_super_bad_csum/image.bz2
 create mode 100644 tests/f_super_bad_csum/name
 create mode 100755 tests/f_super_bad_csum/script

diff --git a/tests/f_super_bad_csum/expect.1 b/tests/f_super_bad_csum/expect.1
new file mode 100644
index 0000000..25ced5c
--- /dev/null
+++ b/tests/f_super_bad_csum/expect.1
@@ -0,0 +1,13 @@
+ext2fs_open2: Superblock checksum does not match superblock
+../e2fsck/e2fsck: Superblock invalid, trying backup blocks...
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+Inode bitmap differences: Group 1 inode bitmap does not match checksum.
+FIXED.
+
+test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
+test_filesys: 11/1024 files (0.0% non-contiguous), 1557/16384 blocks
+Exit status is 0
diff --git a/tests/f_super_bad_csum/expect.2 b/tests/f_super_bad_csum/expect.2
new file mode 100644
index 0000000..dd20919
--- /dev/null
+++ b/tests/f_super_bad_csum/expect.2
@@ -0,0 +1,7 @@
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+test_filesys: 11/1024 files (0.0% non-contiguous), 1557/16384 blocks
+Exit status is 0
diff --git a/tests/f_super_bad_csum/image.bz2 b/tests/f_super_bad_csum/image.bz2
new file mode 100644
index 0000000000000000000000000000000000000000..cd80d4b837fd0e966595e70d4bb0854b8b63a78b
GIT binary patch
literal 1181
zcmZ>Y%CIzaj8qGbG&$qO$-t0W{~rU~v2+!vn5cJQvuwM{xqY@5Sn7D6eNd27s1g;G
zG&H%mOmO0|9?s6m$^s`+F1}FXIM61nHq$79!N)Db*=JUQ56k8MUtJw~W*SN{Ge}MH
zUBbY?_{xNrts&!t5d$1#fLXjO{$GPu<@&&dQ5jq-m-PobE;zyL?B?UZ);NKe&6h{O
z$b=zLO3LKo0uzP|Heacf%MKUVdKnlvrgRzwA6s!GagoX8REaB<raTTAQj81O8W@1e
zdVEbTNJ&-onk2E!GRffOHL98=w|sKY?nTd2FVB&=G2`3JBcZ7~_09$a9f+MOD#jg>
zZLq%H&hN|D(@j@i_Pq2JoHFIin{Q>N$HFG%*Y97o=tE~h!$lw7XKJ4gtxIW|<8$`;
zo_lp&;d57YXvpWdI7D}>(3<u@X;sJ09|}z3maU<Sw3ds8YrACYc`5Ex%zwIl&YE?f
z9fQ)9#4lWUu_cPrfSXVKEW1+Ub93is2l7kH%B?;WeC&{m>uXU}y3XIf{=~#3;rt&s
z6%x9eCoi5jZHZpel(VL`j*IjC*qIq#zM8da=Lgn^-%+)!1rF<-+72B%b?(x&TlXG4
z`K6L6bT@X{p1u40>l+rc`WOY=h{$Swl=L|Hi4lX>r%hLwjm<6N>e~9I%{uEFn_K9A
zxYIdXX5Fs&g4^tpgTiu>H+FF?V34~gClb-|IABq+P^(-~=TZU5ljjsBcuZjFWEK~m
z(QxF!KD#O|1{EO&P6ig1hGR#bF|aJ?(s{<x0Th4$mIkF>;Tb{-9OnX;{|5?bC>3+6
zr24X~=$_`rx=E|7h1HdT;YGKJEt6StN>gOx8s(6n7t@3^rl)LX;d(GdK`C5N%E95L
ztFW3vD3gN#3j^2RTdbSZ#Qa_@xD^{55vgA|>D8mhuMJOeMmlv)HU7f;F=2D?^j=pt
zRp-NJo@idUJ8RQ5bFL?MkC?M|rLKL&we5}Bab=%tro2C8_v~xFFZ5z|6GPlNrl~Vn
z)~v6Vej}69svYhBDo|gkI)yp+z`}hB+22*gpQ~>6bp9daAr4IQ3$}Z8NN-|Gh~=2>
z^rAEJ_?&h7B_Fq6PP|fDUiC!N>#1hUQO#STO;eU?X=-`}U-Al?az=fJ-~*P2f_Cgv
z7BMg_;M~Bu02mO=msmSQKnxzAkd3aB#GS-8#B!VHvh%S8v8~GW^mJlM6G%#)9L#WZ
z#<mx-DJJh`EIjY>%_GW4RW`-l!r|fMXhRQq^~=sqXEVh`+pH$BdtF#Cqm^BxNhXtF
zD_fhSvtPv(=a~vGd%lXZUc9ii(CLq&31f=J)Lg~ePX8oQO!hnoxMcOIwZNRml1Yq1
z%8awv+Q{aP$*-tHPrg^`GY<W1|J%C3i05McE}b^dhZoiyvtNFsU=910g)Q}}itHCG
z8g4euvfNsj9w}kyqbbnHx#G~y6XCZ~PJe4*X#KH-;q$U@;_Z5YKC`bZuyzg$csS8j
hgn?P_V=I@(%tyK$eZ1yBZN&cn7cX+P2$%pWjsRs0<w^hm

literal 0
HcmV?d00001

diff --git a/tests/f_super_bad_csum/name b/tests/f_super_bad_csum/name
new file mode 100644
index 0000000..745562f
--- /dev/null
+++ b/tests/f_super_bad_csum/name
@@ -0,0 +1 @@
+bad csum in superblock (metadata_csum)
diff --git a/tests/f_super_bad_csum/script b/tests/f_super_bad_csum/script
new file mode 100755
index 0000000..cfd4189
--- /dev/null
+++ b/tests/f_super_bad_csum/script
@@ -0,0 +1,33 @@
+#!/bin/bash
+
+FSCK_OPT=-fy
+IMAGE=$test_dir/image.bz2
+
+bzip2 -d < $IMAGE > $TMPFILE
+#e2label $TMPFILE test_filesys
+
+# Run fsck to fix things?
+EXP1=$test_dir/expect.1
+OUT1=$test_name.1.log
+rm -rf $test_name.failed $test_name.ok
+
+$FSCK $FSCK_OPT $TMPFILE 2>&1 | head -n 1000 | tail -n +2 > $OUT1
+echo "Exit status is $?" >> $OUT1
+
+# Run a second time
+EXP2=$test_dir/expect.2
+OUT2=$test_name.2.log
+
+$FSCK $FSCK_OPT $TMPFILE 2>&1 | head -n 1000 | tail -n +2 > $OUT2
+echo "Exit status is $?" >> $OUT2
+
+# Figure out what happened
+if cmp -s $EXP1 $OUT1 && cmp -s $EXP2 $OUT2; then
+	echo "$test_name: $test_description: ok"
+	touch $test_name.ok
+else
+	echo "$test_name: $test_description: failed"
+	diff -u $EXP1 $OUT1 >> $test_name.failed
+	diff -u $EXP2 $OUT2 >> $test_name.failed
+fi
+unset EXP1 OUT1 EXP2 OUT2 FSCK_OPT IMAGE
-- 
1.8.3.1