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pam_passwdqc: new recipe

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pam_passwdqc is a simple password strength checking module for
PAM-aware password changing programs, such as passwd(1).

It is capable of checking password or passphrase strength,enforcing
a policy, and offering randomly-generated passphrases,with all of
these features being optional and easily (re-)configurable.

Signed-off-by: Li Xin <lixin.fnst@cn.fujitsu.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
This commit is contained in:
Li xin 2014-11-10 09:29:46 +08:00 committed by Martin Jansa
parent d30784ef04
commit 1fc4d862c3
3 changed files with 201 additions and 0 deletions
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156
meta-oe/recipes-support/pam-passwdqc/files/1000patch-219201.patch Normal file
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@ -0,0 +1,156 @@
diff -urNp pam_passwdqc-1.0.5-orig/pam_passwdqc.c pam_passwdqc-1.0.5/pam_passwdqc.c
--- pam_passwdqc-1.0.5-orig/pam_passwdqc.c 2008-02-12 15:11:13.000000000 -0500
+++ pam_passwdqc-1.0.5/pam_passwdqc.c 2009-09-28 12:10:32.171696694 -0400
@@ -70,6 +70,8 @@ typedef struct {
passwdqc_params_t qc;
int flags;
int retry;
+ char oldpass_prompt_file[FILE_LEN+1];
+ char newpass_prompt_file[FILE_LEN+1];
} params_t;
static params_t defaults = {
@@ -79,10 +81,13 @@ static params_t defaults = {
3, /* passphrase_words */
4, /* match_length */
1, /* similar_deny */
- 42 /* random_bits */
+ 42, /* random_bits */
+ 1 /* firstupper_lastdigit_check */
},
F_ENFORCE_EVERYONE, /* flags */
- 3 /* retry */
+ 3, /* retry */
+ "", /* oldpass_prompt_file */
+ "" /* newpass_prompt_file */
};
#define PROMPT_OLDPASS \
@@ -361,6 +366,37 @@ static int parse(params_t *params, pam_h
if (!strcmp(*argv, "use_authtok")) {
params->flags |= F_USE_AUTHTOK;
} else
+ if (!strcmp(*argv, "disable_firstupper_lastdigit_check")) {
+ params->qc.firstupper_lastdigit_check = 0;
+ } else
+ if (!strncmp(*argv, "oldpass_prompt_file=", 20)) {
+ int n;
+ FILE *fp = fopen(*argv + 20, "r");
+ if (fp) {
+ n=fread(params->oldpass_prompt_file, sizeof(char), FILE_LEN, fp);
+ if (0==n || ferror(fp)!=0 ) {
+ memset(params->oldpass_prompt_file, '\0', FILE_LEN+1);
+ }
+ else {
+ feof(fp)? (params->oldpass_prompt_file[n-1]='\0'): (params->oldpass_prompt_file[n]='\0');
+ }
+ fclose(fp);
+ }
+ } else
+ if (!strncmp(*argv, "newpass_prompt_file=", 20)) {
+ int n;
+ FILE *fp = fopen(*argv + 20, "r");
+ if (fp) {
+ n=fread(params->newpass_prompt_file, sizeof(char), FILE_LEN, fp);
+ if (0==n || ferror(fp)!=0 ) {
+ memset(params->newpass_prompt_file, '\0', FILE_LEN+1);
+ }
+ else {
+ feof(fp)? (params->newpass_prompt_file[n-1]='\0'): (params->newpass_prompt_file[n]='\0');
+ }
+ fclose(fp);
+ }
+ } else
break;
argc--; argv++;
}
@@ -406,7 +442,7 @@ PAM_EXTERN int pam_sm_chauthtok(pam_hand
if (ask_oldauthtok && !am_root(pamh)) {
status = converse(pamh, PAM_PROMPT_ECHO_OFF,
- PROMPT_OLDPASS, &resp);
+ strlen(params.oldpass_prompt_file) ? params.oldpass_prompt_file : PROMPT_OLDPASS, &resp);
if (status == PAM_SUCCESS) {
if (resp && resp->resp) {
@@ -540,8 +576,7 @@ retry:
MESSAGE_RANDOMFAILED : MESSAGE_MISCONFIGURED);
return PAM_AUTHTOK_ERR;
}
-
- status = converse(pamh, PAM_PROMPT_ECHO_OFF, PROMPT_NEWPASS1, &resp);
+ status = converse(pamh, PAM_PROMPT_ECHO_OFF, strlen(params.newpass_prompt_file) ? params.newpass_prompt_file : PROMPT_NEWPASS1, &resp);
if (status == PAM_SUCCESS && (!resp || !resp->resp))
status = PAM_AUTHTOK_ERR;
diff -urNp pam_passwdqc-1.0.5-orig/passwdqc_check.c pam_passwdqc-1.0.5/passwdqc_check.c
--- pam_passwdqc-1.0.5-orig/passwdqc_check.c 2008-02-12 14:31:52.000000000 -0500
+++ pam_passwdqc-1.0.5/passwdqc_check.c 2009-09-25 22:45:16.080842425 -0400
@@ -90,10 +90,12 @@ static int is_simple(passwdqc_params_t *
/* Upper case characters and digits used in common ways don't increase the
* strength of a password */
- c = (unsigned char)newpass[0];
- if (uppers && isascii(c) && isupper(c)) uppers--;
- c = (unsigned char)newpass[length - 1];
- if (digits && isascii(c) && isdigit(c)) digits--;
+ if (params->firstupper_lastdigit_check) {
+ c = (unsigned char)newpass[0];
+ if (uppers && isascii(c) && isupper(c)) uppers--;
+ c = (unsigned char)newpass[length - 1];
+ if (digits && isascii(c) && isdigit(c)) digits--;
+ }
/* Count the number of different character classes we've seen. We assume
* that there are no non-ASCII characters for digits. */
diff -urNp pam_passwdqc-1.0.5-orig/passwdqc.h pam_passwdqc-1.0.5/passwdqc.h
--- pam_passwdqc-1.0.5-orig/passwdqc.h 2008-02-12 14:30:00.000000000 -0500
+++ pam_passwdqc-1.0.5/passwdqc.h 2009-09-25 14:08:56.214695858 -0400
@@ -7,12 +7,15 @@
#include <pwd.h>
+#define FILE_LEN 4096 /* Max file len = 4096 */
+
typedef struct {
int min[5], max;
int passphrase_words;
int match_length;
int similar_deny;
int random_bits;
+ int firstupper_lastdigit_check;
} passwdqc_params_t;
extern char _passwdqc_wordset_4k[0x1000][6];
diff -urNp pam_passwdqc-1.0.5-orig/README pam_passwdqc-1.0.5/README
--- pam_passwdqc-1.0.5-orig/README 2008-02-12 14:43:33.000000000 -0500
+++ pam_passwdqc-1.0.5/README 2009-09-28 12:12:40.251016423 -0400
@@ -41,9 +41,12 @@ words (see the "passphrase" option below
N3 and N4 are used for passwords consisting of characters from three
and four character classes, respectively.
+ disable_firstupper_lastdigit_check []
+
When calculating the number of character classes, upper-case letters
used as the first character and digits used as the last character of a
-password are not counted.
+password are not counted. To disable this, you can specify
+"disable_firstupper_lastdigit_check".
In addition to being sufficiently long, passwords are required to
contain enough different characters for the character classes and
@@ -142,6 +145,14 @@ This disables user interaction within pa
the only difference between "use_first_pass" and "use_authtok" is that
the former is incompatible with "ask_oldauthtok".
+ oldpass_prompt_file=absolute-file-path []
+ newpass_prompt_file=abosulte-file-path []
+
+The options "oldpass_prompt_file" and "newpass_prompt_file" can be used
+to override prompts while requesting old password and new password,
+respectively. The maximum size of the prompt files can be 4096
+characters at present. If the file size is more than 4096 characters, the
+output will be truncated to 4096 characters.
--
Solar Designer <solar at openwall.com>

11
meta-oe/recipes-support/pam-passwdqc/files/7000Makefile-fix-CC.patch Normal file
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@ -0,0 +1,11 @@
--- pam_passwdqc-1.0.5/Makefile.orig 2012-10-02 20:53:55.443592886 +0900
+++ pam_passwdqc-1.0.5/Makefile 2012-10-02 20:54:19.076108001 +0900
@@ -2,7 +2,7 @@
# Copyright (c) 2000-2003,2005 by Solar Designer. See LICENSE.
#
-CC = gcc
+#CC = gcc
LD = $(CC)
RM = rm -f
MKDIR = mkdir -p

34
meta-oe/recipes-support/pam-passwdqc/pam-passwdqc_1.0.5.bb Normal file
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@ -0,0 +1,34 @@
SUMMARY = "Pluggable password quality-control module."
DESCRIPTION = "pam_passwdqc is a simple password strength checking module for \
PAM-aware password changing programs, such as passwd(1). In addition \
to checking regular passwords, it offers support for passphrases and \
can provide randomly generated passwords. All features are optional \
and can be (re-)configured without rebuilding."
HOMEPAGE = "http://www.openwall.com/passwdqc/"
SECTION = "System Environment/Base"
LICENSE = "BSD"
LIC_FILES_CHKSUM = "file://LICENSE;md5=e284d013ef08e66d4737f446c5890550"
SRC_URI = "http://www.openwall.com/pam/modules/pam_passwdqc/pam_passwdqc-1.0.5.tar.gz \
file://1000patch-219201.patch \
file://7000Makefile-fix-CC.patch \
"
SRC_URI[md5sum] = "cd9c014f736158b1a60384a8e2bdc28a"
SRC_URI[sha256sum] = "32528ddf7d8219c788b6e7702361611ff16c6340b6dc0f418ff164aadc4a4a88"
S = "${WORKDIR}/pam_passwdqc-${PV}"
DEPENDS = "libpam"
EXTRA_OEMAKE = "CFLAGS="${CFLAGS} -Wall -fPIC -DHAVE_SHADOW""
do_install() {
oe_runmake install DESTDIR=${D}
}
FILES_${PN} += "/lib/security/pam_passwdqc.so"
FILES_${PN}-dbg += "/lib/security/.debug"