| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <20201007063315.41585-1-dwaipayanray1@gmail.com>
Date: Wed, 7 Oct 2020 12:03:15 +0530
From: Dwaipayan Ray <dwaipayanray1@...il.com>
To: joe@...ches.com
Cc: linux-kernel-mentees@...ts.linuxfoundation.org,
linux-kernel@...r.kernel.org, lukas.bulwahn@...il.com,
dwaipayanray1@...il.com
Subject: [PATCH v5] checkpatch: add new warnings to author signoff checks.
The author signed-off-by checks are currently very vague.
Cases like same name or same address are not handled separately.
For example, running checkpatch on commit be6577af0cef
("parisc: Add atomic64_set_release() define to avoid CPU soft lockups"),
gives:
WARNING: Missing Signed-off-by: line by nominal patch author
'John David Anglin <dave.anglin@...l.net>'
The signoff line was:
"Signed-off-by: Dave Anglin <dave.anglin@...l.net>"
Clearly the author has signed off but with a slightly different version
of his name. A more appropriate warning would have been to point out
at the name mismatch instead.
Previously, the values assumed by $authorsignoff were either 0 or 1
to indicate whether a proper sign off by author is present.
Extended the checks to handle four new cases.
$authorsignoff values now denote the following:
0: Missing sign off by patch author.
1: Sign off present and identical.
2: Addresses and names match, but comments differ.
"James Watson(JW) <james@...il.com>", "James Watson <james@...il.com>"
3: Addresses match, but names are different.
"James Watson <james@...il.com>", "James <james@...il.com>"
4: Names match, but addresses are different.
"James Watson <james@...son.com>", "James Watson <james@...il.com>"
5: Names match, addresses excluding subaddress details (RFC 5233) match.
"James Watson <james@...il.com>", "James Watson <james+a@...il.com>"
Suggested-by: Joe Perches <joe@...ches.com>
Signed-off-by: Dwaipayan Ray <dwaipayanray1@...il.com>
---
scripts/checkpatch.pl | 93 +++++++++++++++++++++++++++++++++++--------
1 file changed, 77 insertions(+), 16 deletions(-)
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 31624bbb342e..6e0a0d4603d0 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1163,10 +1163,10 @@ sub parse_email {
}
}
+ $comment = trim($comment);
$name = trim($name);
$name =~ s/^\"|\"$//g;
- $name =~ s/(\s*\([^\)]+\))\s*//;
- if (defined($1)) {
+ if ($name =~ s/(\s*\([^\)]+\))\s*//) {
$name_comment = trim($1);
}
$address = trim($address);
@@ -1181,10 +1181,12 @@ sub parse_email {
}
sub format_email {
- my ($name, $address) = @_;
+ my ($name, $name_comment, $address, $comment) = @_;
my $formatted_email;
+ $name_comment = trim($name_comment);
+ $comment = trim($comment);
$name = trim($name);
$name =~ s/^\"|\"$//g;
$address = trim($address);
@@ -1197,9 +1199,9 @@ sub format_email {
if ("$name" eq "") {
$formatted_email = "$address";
} else {
- $formatted_email = "$name <$address>";
+ $formatted_email = "$name$name_comment <$address>";
}
-
+ $formatted_email .= "$comment";
return $formatted_email;
}
@@ -1207,17 +1209,23 @@ sub reformat_email {
my ($email) = @_;
my ($email_name, $name_comment, $email_address, $comment) = parse_email($email);
- return format_email($email_name, $email_address);
+ return format_email($email_name, $name_comment, $email_address, $comment);
}
sub same_email_addresses {
- my ($email1, $email2) = @_;
+ my ($email1, $email2, $match_comment) = @_;
my ($email1_name, $name1_comment, $email1_address, $comment1) = parse_email($email1);
my ($email2_name, $name2_comment, $email2_address, $comment2) = parse_email($email2);
+ if ($match_comment != 1) {
+ return $email1_name eq $email2_name &&
+ $email1_address eq $email2_address;
+ }
return $email1_name eq $email2_name &&
- $email1_address eq $email2_address;
+ $email1_address eq $email2_address &&
+ $name1_comment eq $name2_comment &&
+ $comment1 eq $comment2;
}
sub which {
@@ -2347,6 +2355,7 @@ sub process {
my $signoff = 0;
my $author = '';
my $authorsignoff = 0;
+ my $author_sob = '';
my $is_patch = 0;
my $is_binding_patch = -1;
my $in_header_lines = $file ? 0 : 1;
@@ -2674,9 +2683,37 @@ sub process {
if ($line =~ /^\s*signed-off-by:\s*(.*)/i) {
$signoff++;
$in_commit_log = 0;
- if ($author ne '') {
- if (same_email_addresses($1, $author)) {
+ if ($author ne '' && $authorsignoff != 1) {
+ if (same_email_addresses($1, $author, 1)) {
$authorsignoff = 1;
+ } else {
+ my $ctx = $1;
+ my ($email_name, $email_comment, $email_address, $comment1) = parse_email($ctx);
+ my ($author_name, $author_comment, $author_address, $comment2) = parse_email($author);
+
+ if ($email_address eq $author_address && $email_name eq $author_name) {
+ $author_sob = $ctx;
+ $authorsignoff = 2;
+ } elsif ($email_address eq $author_address) {
+ $author_sob = $ctx;
+ $authorsignoff = 3;
+ } elsif ($email_name eq $author_name) {
+ $author_sob = $ctx;
+ $authorsignoff = 4;
+
+ my $address1 = $email_address;
+ my $address2 = $author_address;
+
+ if ($address1 =~ /(\S+)\+\S+(\@.*)/) {
+ $address1 = "$1$2";
+ }
+ if ($address2 =~ /(\S+)\+\S+(\@.*)/) {
+ $address2 = "$1$2";
+ }
+ if ($address1 eq $address2) {
+ $authorsignoff = 5;
+ }
+ }
}
}
}
@@ -2733,7 +2770,7 @@ sub process {
}
my ($email_name, $name_comment, $email_address, $comment) = parse_email($email);
- my $suggested_email = format_email(($email_name, $email_address));
+ my $suggested_email = format_email(($email_name, $name_comment, $email_address, $comment));
if ($suggested_email eq "") {
ERROR("BAD_SIGN_OFF",
"Unrecognized email address: '$email'\n" . $herecurr);
@@ -2743,9 +2780,9 @@ sub process {
$dequoted =~ s/" </ </;
# Don't force email to have quotes
# Allow just an angle bracketed address
- if (!same_email_addresses($email, $suggested_email)) {
+ if (!same_email_addresses($email, $suggested_email, 0)) {
WARN("BAD_SIGN_OFF",
- "email address '$email' might be better as '$suggested_email$comment'\n" . $herecurr);
+ "email address '$email' might be better as '$suggested_email'\n" . $herecurr);
}
}
@@ -6891,9 +6928,33 @@ sub process {
if ($signoff == 0) {
ERROR("MISSING_SIGN_OFF",
"Missing Signed-off-by: line(s)\n");
- } elsif (!$authorsignoff) {
- WARN("NO_AUTHOR_SIGN_OFF",
- "Missing Signed-off-by: line by nominal patch author '$author'\n");
+ } elsif ($authorsignoff != 1) {
+ # authorsignoff values:
+ # 0 -> missing sign off
+ # 1 -> sign off identical
+ # 2 -> names and addresses match, comments mismatch
+ # 3 -> addresses match, names different
+ # 4 -> names match, addresses different
+ # 5 -> names match, addresses excluding subaddress details (refer RFC 5233) match
+
+ my $sob_msg = "'From: $author' != 'Signed-off-by: $author_sob'";
+
+ if ($authorsignoff == 0) {
+ ERROR("NO_AUTHOR_SIGN_OFF",
+ "Missing Signed-off-by: line by nominal patch author '$author'\n");
+ } elsif ($authorsignoff == 2) {
+ CHK("NO_AUTHOR_SIGN_OFF",
+ "From:/Signed-off-by: email comments mismatch: $sob_msg\n");
+ } elsif ($authorsignoff == 3) {
+ WARN("NO_AUTHOR_SIGN_OFF",
+ "From:/Signed-off-by: email name mismatch: $sob_msg\n");
+ } elsif ($authorsignoff == 4) {
+ WARN("NO_AUTHOR_SIGN_OFF",
+ "From:/Signed-off-by: email address mismatch: $sob_msg\n");
+ } elsif ($authorsignoff == 5) {
+ WARN("NO_AUTHOR_SIGN_OFF",
+ "From:/Signed-off-by: email subaddress mismatch: $sob_msg\n");
+ }
}
}
--
2.27.0
Powered by blists - more mailing lists