Index: Config.h =================================================================== RCS file: /var/cvs/tinylogin/Config.h,v retrieving revision 1.10 retrieving revision 1.12 diff -u -r1.10 -r1.12 --- a/Config.h 23 Jun 2002 03:09:07 -0000 1.10 +++ b/Config.h 17 Feb 2003 11:51:55 -0000 1.12 @@ -27,15 +27,11 @@ // Enable checking of /etc/securetty by login #define CONFIG_FEATURE_SECURETTY // -// Enable using sha passwords -#define CONFIG_FEATURE_SHA1_PASSWORDS -// // Enable use of a wheel group #define CONFIG_WHEEL_GROUP // -// This compiles out everything but the most -// trivial --help usage information (i.e. reduces binary size) -#define CONFIG_FEATURE_TRIVIAL_HELP +// Show verbose usage messages +//#define CONFIG_FEATURE_VERBOSE_USAGE // // Enable 'tinylogin --install [-s]' to allow tinylogin // to create links (or symlinks) at runtime for all the @@ -48,10 +44,6 @@ // Nothing beyond this point should ever be touched by // mere mortals so leave this stuff alone. // -#ifdef CONFIG_FEATURE_SHA1_PASSWORDS -#define CONFIG_SHA1 -#endif -// #ifdef CONFIG_FEATURE_SHADOWPASSWDS #define CONFIG_SHADOW #endif Index: addgroup.c =================================================================== RCS file: /var/cvs/tinylogin/addgroup.c,v retrieving revision 1.22 retrieving revision 1.23 diff -u -r1.22 -r1.23 --- a/addgroup.c 12 Dec 2002 08:46:03 -0000 1.22 +++ b/addgroup.c 9 Jan 2003 18:43:29 -0000 1.23 @@ -133,23 +133,33 @@ * ________________________________________________________________________ */ int addgroup_main(int argc, char **argv) { + int opt; char *group; char *user; gid_t gid = 0; - if (argc < 2) { - show_usage(); + /* get remaining args */ + while ((opt = getopt (argc, argv, "g:")) != -1) { + switch (opt) { + case 'g': + gid = strtol(optarg, NULL, 10); + break; + default: + show_usage(); + break; + } } - if (strncmp(argv[1], "-g", 2) == 0) { - gid = strtol(argv[2], NULL, 10); - group = argv[2]; + if (optind < argc) { + group = argv[optind]; + optind++; } else { show_usage(); } - - if (argc == 4) { - user = argv[3]; + + if (optind < argc) { + user = argv[optind]; + optind++; } else { user = ""; } @@ -163,4 +173,4 @@ return addgroup(GROUP_FILE, group, gid, user); } -/* $Id: addgroup.c,v 1.22 2002/12/12 08:46:03 andersen Exp $ */ +/* $Id: addgroup.c,v 1.23 2003/01/09 18:43:29 andersen Exp $ */ Index: adduser.c =================================================================== RCS file: /var/cvs/tinylogin/adduser.c,v retrieving revision 1.37 retrieving revision 1.38 diff -u -r1.37 -r1.38 --- a/adduser.c 12 Dec 2002 08:46:03 -0000 1.37 +++ b/adduser.c 21 Jun 2003 19:35:42 -0000 1.38 @@ -21,6 +21,9 @@ * */ +#ifndef _GNU_SOURCE +#define _GNU_SOURCE +#endif #include #include #include @@ -29,6 +32,7 @@ #include #include #include +#include #include #include #include @@ -93,21 +97,23 @@ } } - /* EDR check for an already existing gid */ - while (getgrgid(p->pw_uid) != NULL) - p->pw_uid++; - - /* EDR also check for an existing group definition */ - if (getgrnam(p->pw_name) != NULL) - return 3; + if (p->pw_gid == 0) { + /* EDR check for an already existing gid */ + while (getgrgid(p->pw_uid) != NULL) + p->pw_uid++; + + /* EDR also check for an existing group definition */ + if (getgrnam(p->pw_name) != NULL) + return 3; + + /* EDR create new gid always = uid */ + p->pw_gid = p->pw_uid; + } /* EDR bounds check */ if ((p->pw_uid > max) || (p->pw_uid < min)) return 2; - /* EDR create new gid always = uid */ - p->pw_gid = p->pw_uid; - /* return 1; */ return 0; } @@ -136,7 +142,7 @@ } /* putpwent(3) remix */ -static int adduser(const char *filename, struct passwd *p) +static int adduser(const char *filename, struct passwd *p, int makehome, int setpass) { FILE *passwd; int r; @@ -144,6 +150,11 @@ FILE *shadow; struct spwd *sp; #endif + int new_group = 1; + + /* if using a pre-existing group, don't create one */ + if (p->pw_gid != 0) + new_group = 0; /* make sure everything is kosher and setup uid && gid */ passwd = wfopen(filename, "a"); @@ -194,29 +205,36 @@ } #endif - /* add to group */ - /* addgroup should be responsible for dealing w/ gshadow */ - addgroup_wrapper(p->pw_name, p->pw_gid); + if (new_group) { + /* add to group */ + /* addgroup should be responsible for dealing w/ gshadow */ + addgroup_wrapper(p->pw_name, p->pw_gid); + } /* Clear the umask for this process so it doesn't * * screw up the permissions on the mkdir and chown. */ umask(0); - /* mkdir */ - if (mkdir(p->pw_dir, 0755)) { - perror_msg("%s", p->pw_dir); - } - /* Set the owner and group so it is owned by the new user. */ - if (chown(p->pw_dir, p->pw_uid, p->pw_gid)) { - perror_msg("%s", p->pw_dir); - } - /* Now fix up the permissions to 2755. Can't do it before now - * since chown will clear the setgid bit */ - if (chmod(p->pw_dir, 02755)) { - perror_msg("%s", p->pw_dir); + if (makehome) { + /* mkdir */ + if (mkdir(p->pw_dir, 0755)) { + perror_msg("%s", p->pw_dir); + } + /* Set the owner and group so it is owned by the new user. */ + if (chown(p->pw_dir, p->pw_uid, p->pw_gid)) { + perror_msg("%s", p->pw_dir); + } + /* Now fix up the permissions to 2755. Can't do it before now + * since chown will clear the setgid bit */ + if (chmod(p->pw_dir, 02755)) { + perror_msg("%s", p->pw_dir); + } + } + + if (setpass) { + /* interactively set passwd */ + passwd_wrapper(p->pw_name); } - /* interactively set passwd */ - passwd_wrapper(p->pw_name); return 0; } @@ -228,6 +246,15 @@ return geteuid(); } +struct option long_options[] = { + { "home", 1, NULL, 'h' }, + { "disabled-password", 0, NULL, 'D' }, + { "system", 0, NULL, 'S' }, + { "ingroup", 1, NULL, 'G' }, + { "no-create-home", 0, NULL, 'H' }, + { 0, 0, 0, 0 } +}; + /* * adduser will take a login_name as its first parameter. * @@ -244,6 +271,11 @@ const char *gecos; const char *home = NULL; const char *shell; + const char *usegroup = NULL; + int option_index = -1; + int setpass = 1; + int makehome = 1; + int system = 0; struct passwd pw; @@ -255,7 +287,7 @@ shell = default_shell; /* get args */ - while ((opt = getopt (argc, argv, "h:g:s:")) != -1) { + while ((opt = getopt_long (argc, argv, "h:g:s:G:DSH", long_options, &option_index)) != -1) { switch (opt) { case 'h': home = optarg; @@ -266,6 +298,18 @@ case 's': shell = optarg; break; + case 'H': + makehome = 0; + break; + case 'D': + setpass = 0; + break; + case 'S': + system = 1; + break; + case 'G': + usegroup = optarg; + break; default: show_usage (); break; @@ -301,8 +345,19 @@ pw.pw_dir = (char *)home; pw.pw_shell = (char *)shell; + if (usegroup) { + /* Add user to a group that already exists */ + struct group *g; + + g = getgrnam(usegroup); + if (g == NULL) + error_msg_and_die("group %s does not exist", usegroup); + + pw.pw_gid = g->gr_gid; + } + /* grand finale */ - return adduser(PASSWD_FILE, &pw); + return adduser(PASSWD_FILE, &pw, makehome, setpass); } -/* $Id: adduser.c,v 1.37 2002/12/12 08:46:03 andersen Exp $ */ +/* $Id: adduser.c,v 1.38 2003/06/21 19:35:42 andersen Exp $ */ Index: install.sh =================================================================== RCS file: /var/cvs/tinylogin/install.sh,v retrieving revision 1.10 retrieving revision 1.11 diff -u -r1.10 -r1.11 --- a/install.sh 23 Jun 2002 03:09:07 -0000 1.10 +++ b/install.sh 6 Mar 2003 19:29:17 -0000 1.11 @@ -21,11 +21,11 @@ h=`sort tinylogin.links | uniq` -mkdir -p $prefix/bin || exit 1 +install -d -m 0755 $prefix/bin || exit 1 for i in $h ; do appdir=`dirname $i` - mkdir -p $prefix/$appdir || exit 1 + install -d -m 0755 $prefix/$appdir || exit 1 if [ "$2" = "--hardlinks" ]; then bb_path="$prefix/bin/tinylogin" else Index: passwd.c =================================================================== RCS file: /var/cvs/tinylogin/passwd.c,v retrieving revision 1.19 retrieving revision 1.20 diff -u -r1.19 -r1.20 --- a/passwd.c 7 Nov 2002 02:34:15 -0000 1.19 +++ b/passwd.c 17 Feb 2003 11:51:55 -0000 1.20 @@ -25,10 +25,6 @@ { int x = 0; /* standart: DES */ -#ifdef CONFIG_FEATURE_SHA1_PASSWORDS - if (strcasecmp(a, "sha1") == 0) - x = 2; -#endif if (strcasecmp(a, "md5") == 0) x = 1; return x; @@ -394,11 +390,6 @@ bzero(cp, strlen(cp)); bzero(orig, sizeof(orig)); -#ifdef CONFIG_FEATURE_SHA1_PASSWORDS - if (algo == 2) { - cp = pw_encrypt(pass, "$2$"); - } else -#endif if (algo == 1) { cp = pw_encrypt(pass, "$1$"); } else Index: sha1.c =================================================================== RCS file: sha1.c diff -N sha1.c --- a/sha1.c 20 Dec 2000 21:54:28 -0000 1.2 +++ /dev/null 1 Jan 1970 00:00:00 -0000 @@ -1,187 +0,0 @@ -/* vi: set sw=4 ts=4: */ -/* - Implements the Secure Hash Algorithm (SHA1) - - Copyright (C) 1999 Scott G. Miller - - Released under the terms of the GNU General Public License v2 - see file COPYING for details - - Credits: - Robert Klep -- Expansion function fix - --- - FIXME: This source takes int to be a 32 bit integer. This - may vary from system to system. I'd use autoconf if I was familiar - with it. Anyone want to help me out? -*/ - -void sha_hash(int *, int *); -void sha_init(int *); -char *sprint_hash(int *); -void do_sha_hash(int *, int *); - -/* - added 3 functions for sha passowrd stuff (mainly inspired from stuff seen in main.c from shasum-1.3 package) -*/ -#include -#include -#include - -#include -/* On big endian machines, we need to reverse the input to process - the blocks correctly */ - -#define switch_endianness(x) (x<<24 & 0xff000000) | \ - (x<<8 & 0x00ff0000) | \ - (x>>8 & 0x0000ff00) | \ - (x>>24 & 0x000000ff) - -/* Initial hash values */ -#define Ai 0x67452301 -#define Bi 0xefcdab89 -#define Ci 0x98badcfe -#define Di 0x10325476 -#define Ei 0xc3d2e1f0 - -/* SHA1 round constants */ -#define K1 0x5a827999 -#define K2 0x6ed9eba1 -#define K3 0x8f1bbcdc -#define K4 0xca62c1d6 - -/* Round functions. Note that f2() is used in both rounds 2 and 4 */ -#define f1(B,C,D) ((B & C) | ((~B) & D)) -#define f2(B,C,D) (B ^ C ^ D) -#define f3(B,C,D) ((B & C) | (B & D) | (C & D)) - -/* left circular shift functions (rotate left) */ -#define rol1(x) ((x<<1) | ((x>>31) & 1)) -#define rol5(A) ((A<<5) | ((A>>27) & 0x1f)) -#define rol30(B) ((B<<30) | ((B>>2) & 0x3fffffff)) - -/* - Hashes 'data', which should be a pointer to 512 bits of data (sixteen - 32 bit ints), into the ongoing 160 bit hash value (five 32 bit ints) - 'hash' -*/ -void sha_hash(int *data, int *hash) -{ - int W[80]; - unsigned int A = hash[0], B = hash[1], C = hash[2], D = hash[3], E = - hash[4]; - unsigned int t, x, TEMP; - - for (t = 0; t < 16; t++) { -#ifdef BIG_ENDIAN - W[t] = switch_endianness(data[t]); -#else - W[t] = data[t]; -#endif - } - - - /* SHA1 Data expansion */ - for (t = 16; t < 80; t++) { - x = W[t - 3] ^ W[t - 8] ^ W[t - 14] ^ W[t - 16]; - W[t] = rol1(x); - } - - /* SHA1 main loop (t=0 to 79) - This is broken down into four subloops in order to use - the correct round function and constant */ - for (t = 0; t < 20; t++) { - TEMP = rol5(A) + f1(B, C, D) + E + W[t] + K1; - E = D; - D = C; - C = rol30(B); - B = A; - A = TEMP; - } - for (; t < 40; t++) { - TEMP = rol5(A) + f2(B, C, D) + E + W[t] + K2; - E = D; - D = C; - C = rol30(B); - B = A; - A = TEMP; - } - for (; t < 60; t++) { - TEMP = rol5(A) + f3(B, C, D) + E + W[t] + K3; - E = D; - D = C; - C = rol30(B); - B = A; - A = TEMP; - } - for (; t < 80; t++) { - TEMP = rol5(A) + f2(B, C, D) + E + W[t] + K4; - E = D; - D = C; - C = rol30(B); - B = A; - A = TEMP; - } - hash[0] += A; - hash[1] += B; - hash[2] += C; - hash[3] += D; - hash[4] += E; -} - -/* - Takes a pointer to a 160 bit block of data (five 32 bit ints) and - intializes it to the start constants of the SHA1 algorithm. This - must be called before using hash in the call to sha_hash -*/ -void sha_init(int *hash) -{ - hash[0] = Ai; - hash[1] = Bi; - hash[2] = Ci; - hash[3] = Di; - hash[4] = Ei; -} - - -/* - * write the hash to a string - */ -char *sprint_sha1_hash(int *hashval) -{ - int x = 0; - char *out = NULL; - - if ((out = malloc(43)) == NULL) - return NULL; - memset(out, 0x00, 43); - strcpy(out, "$2$"); - for (x = 0; x < 5; x++) { - sprintf(out + (x * 8) + 3, "%08x", hashval[x]); - } - out[43] = 0; - return out; -} - - -/* - * hash the password - */ -void do_sha_hash(int *hashval, int *pw) -{ - sha_init(hashval); - sha_hash(pw, hashval); -} - - -/* - * hash a charakter string and return the 160bit integer in hex as a character string - */ -char *sha1_crypt(const char *pw) -{ - int hashval[20]; - - memset(hashval, 0x00, sizeof(hashval)); - do_sha_hash(hashval, (int *) ((char *) pw + 3)); - - return sprint_sha1_hash(hashval); -} Index: vlock.c =================================================================== RCS file: /var/cvs/tinylogin/vlock.c,v retrieving revision 1.13 retrieving revision 1.14 diff -u -r1.13 -r1.14 --- a/vlock.c 19 Sep 2002 03:50:31 -0000 1.13 +++ b/vlock.c 17 Feb 2003 11:51:56 -0000 1.14 @@ -26,7 +26,7 @@ * minimalistic vlock. */ /* Fixed by Erik Andersen to do passwords the tinylogin way... - * It now works with md5, sha1, etc passwords. */ + * It now works with md5, etc passwords. */ #include "tinylogin.h" #include Index: docs/tinylogin.busybox.net/index.html =================================================================== RCS file: /var/cvs/tinylogin/docs/tinylogin.busybox.net/index.html,v retrieving revision 1.23 retrieving revision 1.25 diff -u -r1.23 -r1.25 --- a/docs/tinylogin.busybox.net/index.html 3 Jan 2003 10:56:32 -0000 1.23 +++ b/docs/tinylogin.busybox.net/index.html 3 Jan 2003 11:21:53 -0000 1.25 @@ -56,6 +56,9 @@ Erik Andersen, and licensed under the GNU GENERAL PUBLIC LICENSE. +

Mailing List Information

+Here are the Tinylogin mailing list archives
+To subscribe, go and visit this page. @@ -222,19 +225,19 @@
  • Freshmeat AppIndex record for TinyLogin +

  • BusyBox combines tiny versions of many common UNIX utilities into a single small executable. It provides minimalist replacements for most of the utilities you usually find on a standard Linux system. -

    +

  • uClibc is a C library for embedded systems. You can actually statically link a "Hello World" application under x86 that only takes 4k (as opposed to 200k under GNU libc). It can do dynamic linking too and works nicely with BusyBox to create very small embedded systems. -

Index: include/libbb.h =================================================================== RCS file: /var/cvs/tinylogin/include/libbb.h,v retrieving revision 1.1 retrieving revision 1.2 diff -u -r1.1 -r1.2 --- a/include/libbb.h 23 Jun 2002 03:09:10 -0000 1.1 +++ b/include/libbb.h 17 Feb 2003 11:51:57 -0000 1.2 @@ -39,9 +39,6 @@ #ifdef CONFIG_FEATURE_SHADOWPASSWDS #include "shadow_.h" #endif -#ifdef CONFIG_FEATURE_SHA1_PASSWORDS -# include "sha1.h" -#endif #if (__GNU_LIBRARY__ < 5) && (!defined __dietlibc__) /* libc5 doesn't define socklen_t */ Index: include/sha1.h =================================================================== RCS file: include/sha1.h diff -N include/sha1.h --- a/include/sha1.h 23 Jun 2002 03:09:10 -0000 1.1 +++ /dev/null 1 Jan 1970 00:00:00 -0000 @@ -1,3 +0,0 @@ -/* SHA1.H - header file for SHA1.C */ - -char *sha1_crypt(const char *pw); Index: include/usage.h =================================================================== RCS file: /var/cvs/tinylogin/include/usage.h,v retrieving revision 1.2 retrieving revision 1.3 diff -u -r1.2 -r1.3 --- a/include/usage.h 3 Jul 2002 05:57:00 -0000 1.2 +++ b/include/usage.h 17 Feb 2003 11:51:57 -0000 1.3 @@ -33,11 +33,6 @@ "\t-h\tName of the remote host for this login.\n" \ "\t-p\tPreserve environment." -#ifdef CONFIG_FEATURE_SHA1_PASSWORDS - #define PASSWORD_ALG_TYPES(a) a -#else - #define PASSWORD_ALG_TYPES(a) -#endif #define passwd_trivial_usage \ "[OPTION] [name]" #define passwd_full_usage \ @@ -46,7 +41,6 @@ "Options:\n" \ "\t-a\tDefine which algorithm shall be used for the password.\n" \ "\t\t\t(Choices: des, md5" \ - PASSWORD_ALG_TYPES(", sha1") \ ")\n\t-d\tDelete the password for the specified user account.\n" \ "\t-l\tLocks (disables) the specified user account.\n" \ "\t-u\tUnlocks (re-enables) the specified user account." Index: libbb/obscure.c =================================================================== RCS file: /var/cvs/tinylogin/libbb/obscure.c,v retrieving revision 1.2 retrieving revision 1.3 diff -u -r1.2 -r1.3 --- a/libbb/obscure.c 23 Jun 2002 04:05:59 -0000 1.2 +++ b/libbb/obscure.c 30 Jul 2003 08:41:33 -0000 1.3 @@ -44,7 +44,7 @@ * can't be a palindrome - like `R A D A R' or `M A D A M' */ -static int palindrome(const char *old, const char *newval) +static int palindrome(const char *newval) { int i, j; @@ -79,24 +79,25 @@ * a nice mix of characters. */ -static int simple(const char *old, const char *newval) +static int simple(const char *newval) { int digits = 0; int uppers = 0; int lowers = 0; int others = 0; + int c; int size; int i; - for (i = 0; newval[i]; i++) { - if (isdigit(newval[i])) - digits++; - else if (isupper(newval[i])) - uppers++; - else if (islower(newval[i])) - lowers++; + for (i = 0; (c = *newval++) != 0; i++) { + if (isdigit(c)) + digits = c; + else if (isupper(c)) + uppers = c; + else if (islower(c)) + lowers = c; else - others++; + others = c; } /* @@ -129,49 +130,53 @@ return string; } -static char *password_check(const char *old, const char *newval, const struct passwd *pwdp) +static const char * +password_check(const char *old, const char *newval, const struct passwd *pwdp) { - char *msg = NULL; - char *oldmono, *newmono, *wrapped; + const char *msg; + char *newmono, *wrapped; + int lenwrap; if (strcmp(newval, old) == 0) return "no change"; + if (simple(newval)) + return "too simple"; + msg = NULL; newmono = str_lower(xstrdup(newval)); - oldmono = str_lower(xstrdup(old)); - wrapped = (char *) xmalloc(strlen(oldmono) * 2 + 1); - strcpy(wrapped, oldmono); - strcat(wrapped, oldmono); + lenwrap = strlen(old) * 2 + 1; + wrapped = (char *) xmalloc(lenwrap); + str_lower(strcpy(wrapped, old)); - if (palindrome(oldmono, newmono)) + if (palindrome(newmono)) msg = "a palindrome"; - if (!msg && strcmp(oldmono, newmono) == 0) + else if (strcmp(wrapped, newmono) == 0) msg = "case changes only"; - if (!msg && similiar(oldmono, newmono)) + else if (similiar(wrapped, newmono)) msg = "too similiar"; - if (!msg && simple(old, newval)) - msg = "too simple"; - - if (!msg && strstr(wrapped, newmono)) - msg = "rotated"; + else { + safe_strncpy(wrapped + lenwrap, wrapped, lenwrap + 1); + if (strstr(wrapped, newmono)) + msg = "rotated"; + } bzero(newmono, strlen(newmono)); - bzero(oldmono, strlen(oldmono)); - bzero(wrapped, strlen(wrapped)); + bzero(wrapped, lenwrap); free(newmono); - free(oldmono); free(wrapped); return msg; } -static char *obscure_msg(const char *old, const char *newval, const struct passwd *pwdp) +static const char * +obscure_msg(const char *old, const char *newval, const struct passwd *pwdp) { int maxlen, oldlen, newlen; - char *new1, *old1, *msg; + char *new1, *old1; + const char *msg; oldlen = strlen(old); newlen = strlen(newval); @@ -233,7 +238,7 @@ extern int obscure(const char *old, const char *newval, const struct passwd *pwdp) { - char *msg = obscure_msg(old, newval, pwdp); + const char *msg = obscure_msg(old, newval, pwdp); /* if (msg) { */ if (msg != NULL) { Index: libbb/pw_encrypt.c =================================================================== RCS file: /var/cvs/tinylogin/libbb/pw_encrypt.c,v retrieving revision 1.1 retrieving revision 1.2 diff -u -r1.1 -r1.2 --- a/libbb/pw_encrypt.c 23 Jun 2002 03:09:12 -0000 1.1 +++ b/libbb/pw_encrypt.c 17 Feb 2003 11:51:58 -0000 1.2 @@ -30,11 +30,6 @@ static char cipher[128]; char *cp; -#ifdef CONFIG_FEATURE_SHA1_PASSWORDS - if (strncmp(salt, "$2$", 3) == 0) { - return sha1_crypt(clear); - } -#endif cp = (char *) crypt(clear, salt); /* if crypt (a nonstandard crypt) returns a string too large, truncate it so we don't overrun buffers and hope there is