diff options
Diffstat (limited to 'crypto/heimdal/lib/kdfs')
| -rw-r--r-- | crypto/heimdal/lib/kdfs/ChangeLog | 11 | ||||
| -rw-r--r-- | crypto/heimdal/lib/kdfs/Makefile.am | 10 | ||||
| -rw-r--r-- | crypto/heimdal/lib/kdfs/Makefile.in | 557 | ||||
| -rw-r--r-- | crypto/heimdal/lib/kdfs/k5dfspag.c | 362 |
4 files changed, 940 insertions, 0 deletions
diff --git a/crypto/heimdal/lib/kdfs/ChangeLog b/crypto/heimdal/lib/kdfs/ChangeLog new file mode 100644 index 0000000..6b52fd2 --- /dev/null +++ b/crypto/heimdal/lib/kdfs/ChangeLog @@ -0,0 +1,11 @@ +2000-12-11 Assar Westerlund <assar@sics.se> + + * Makefile.am (libkdfs_la_LDFLAGS): set version to 0:1:0 + +2000-07-02 Assar Westerlund <assar@sics.se> + + * k5dfspag.c: use krb5.h instead of krb5_locl.h + + * initial import from Ake Sandgren <ake@cs.umu.se> + + diff --git a/crypto/heimdal/lib/kdfs/Makefile.am b/crypto/heimdal/lib/kdfs/Makefile.am new file mode 100644 index 0000000..c51d55e --- /dev/null +++ b/crypto/heimdal/lib/kdfs/Makefile.am @@ -0,0 +1,10 @@ +# $Id: Makefile.am,v 1.2 2000/12/11 00:46:47 assar Exp $ + +include $(top_srcdir)/Makefile.am.common + +lib_LTLIBRARIES = libkdfs.la + +libkdfs_la_SOURCES = \ + k5dfspag.c + +libkdfs_la_LDFLAGS = -version-info 0:1:0 diff --git a/crypto/heimdal/lib/kdfs/Makefile.in b/crypto/heimdal/lib/kdfs/Makefile.in new file mode 100644 index 0000000..124a908 --- /dev/null +++ b/crypto/heimdal/lib/kdfs/Makefile.in @@ -0,0 +1,557 @@ +# Makefile.in generated automatically by automake 1.4a from Makefile.am + +# Copyright (C) 1994, 1995-9, 2000 Free Software Foundation, Inc. +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +SHELL = @SHELL@ + +srcdir = @srcdir@ +top_srcdir = @top_srcdir@ +VPATH = @srcdir@ +prefix = @prefix@ +exec_prefix = @exec_prefix@ + +bindir = @bindir@ +sbindir = @sbindir@ +libexecdir = @libexecdir@ +datadir = @datadir@ +sysconfdir = @sysconfdir@ +sharedstatedir = @sharedstatedir@ +localstatedir = @localstatedir@ +libdir = @libdir@ +infodir = @infodir@ +mandir = @mandir@ +includedir = @includedir@ +oldincludedir = /usr/include + +pkgdatadir = $(datadir)/@PACKAGE@ +pkglibdir = $(libdir)/@PACKAGE@ +pkgincludedir = $(includedir)/@PACKAGE@ + +top_builddir = ../.. + +ACLOCAL = @ACLOCAL@ +AUTOCONF = @AUTOCONF@ +AUTOMAKE = @AUTOMAKE@ +AUTOHEADER = @AUTOHEADER@ + +INSTALL = @INSTALL@ +INSTALL_PROGRAM = @INSTALL_PROGRAM@ +INSTALL_DATA = @INSTALL_DATA@ +INSTALL_SCRIPT = @INSTALL_SCRIPT@ +INSTALL_STRIP_FLAG = +transform = @program_transform_name@ + +NORMAL_INSTALL = : +PRE_INSTALL = : +POST_INSTALL = : +NORMAL_UNINSTALL = : +PRE_UNINSTALL = : +POST_UNINSTALL = : + +@SET_MAKE@ +host_alias = @host_alias@ +host_triplet = @host@ +AIX_EXTRA_KAFS = @AIX_EXTRA_KAFS@ +AMDEP = @AMDEP@ +AMTAR = @AMTAR@ +AS = @AS@ +AWK = @AWK@ +CANONICAL_HOST = @CANONICAL_HOST@ +CATMAN = @CATMAN@ +CATMANEXT = @CATMANEXT@ +CC = @CC@ +CPP = @CPP@ +CXX = @CXX@ +CXXCPP = @CXXCPP@ +DBLIB = @DBLIB@ +DEPDIR = @DEPDIR@ +DIR_des = @DIR_des@ +DIR_roken = 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00:46:47 assar Exp $ + + +# $Id: Makefile.am.common,v 1.3 1999/04/01 14:58:43 joda Exp $ + + +# $Id: Makefile.am.common,v 1.23 2000/12/05 09:11:09 joda Exp $ + + +AUTOMAKE_OPTIONS = foreign no-dependencies + +SUFFIXES = .et .h .1 .3 .5 .8 .cat1 .cat3 .cat5 .cat8 .x + +INCLUDES = -I$(top_builddir)/include $(INCLUDES_roken) + +AM_CFLAGS = $(WFLAGS) + +CP = cp + +COMPILE_ET = $(top_builddir)/lib/com_err/compile_et + +buildinclude = $(top_builddir)/include + +LIB_XauReadAuth = @LIB_XauReadAuth@ +LIB_crypt = @LIB_crypt@ +LIB_dbm_firstkey = @LIB_dbm_firstkey@ +LIB_dbopen = @LIB_dbopen@ +LIB_dlopen = @LIB_dlopen@ +LIB_dn_expand = @LIB_dn_expand@ +LIB_el_init = @LIB_el_init@ +LIB_getattr = @LIB_getattr@ +LIB_gethostbyname = @LIB_gethostbyname@ +LIB_getpwent_r = @LIB_getpwent_r@ +LIB_getpwnam_r = @LIB_getpwnam_r@ +LIB_getsockopt = @LIB_getsockopt@ +LIB_logout = @LIB_logout@ +LIB_logwtmp = @LIB_logwtmp@ +LIB_odm_initialize = @LIB_odm_initialize@ +LIB_pidfile = @LIB_pidfile@ +LIB_readline = 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+# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/crypto/heimdal/lib/kdfs/k5dfspag.c b/crypto/heimdal/lib/kdfs/k5dfspag.c new file mode 100644 index 0000000..3e48a85 --- /dev/null +++ b/crypto/heimdal/lib/kdfs/k5dfspag.c @@ -0,0 +1,362 @@ +/* + * lib/krb5/os/k5dfspag.c + * + * New Kerberos module to issue the DFS PAG syscalls. + * It also contains the routine to fork and exec the + * k5dcecon routine to do most of the work. + * + * This file is designed to be as independent of DCE + * and DFS as possible. The only dependencies are on + * the syscall numbers. If DFS not running or not installed, + * the sig handlers will catch and the signal and + * will continue. + * + * krb5_dfs_newpag and krb5_dfs_getpag should not be real + * Kerberos routines, since they should be setpag and getpag + * in the DCE library, but without the DCE baggage. + * Thus they don't have context, and don't return a krb5 error. + * + * + * + * krb5_dfs_pag() + */ + +#include <krb5.h> + +#ifdef DCE + +#include <stdio.h> +#include <sys/stat.h> +#include <sys/wait.h> +#include <fcntl.h> +#include <sys/param.h> + +/* Only run this DFS PAG code on systems with POSIX + * All that we are interested in dor:, AIX 4.x, + * Solaris 2.5.x, HPUX 10.x Even SunOS 4.1.4, AIX 3.2.5 + * and SGI 5.3 are OK. This simplifies + * the build/configure which I don't want to change now. + * All of them also have waitpid as well. + */ + +#define POSIX_SETJMP +#define POSIX_SIGNALS +#define HAVE_WAITPID + +#include <signal.h> +#include <setjmp.h> +#ifndef POSIX_SETJMP +#undef sigjmp_buf +#undef sigsetjmp +#undef siglongjmp +#define sigjmp_buf jmp_buf +#define sigsetjmp(j,s) setjmp(j) +#define siglongjmp longjmp +#endif + +#ifdef POSIX_SIGNALS +typedef struct sigaction handler; +#define handler_init(H,F) (sigemptyset(&(H).sa_mask), \ + (H).sa_flags=0, \ + (H).sa_handler=(F)) +#define handler_swap(S,NEW,OLD) sigaction(S, &NEW, &OLD) +#define handler_set(S,OLD) sigaction(S, &OLD, NULL) +#else +typedef sigtype (*handler)(); +#define handler_init(H,F) ((H) = (F)) +#define handler_swap(S,NEW,OLD) ((OLD) = signal ((S), (NEW))) +#define handler_set(S,OLD) (signal ((S), (OLD))) +#endif + +#define krb5_sigtype void +#define WAIT_USES_INT +typedef krb5_sigtype sigtype; + + +/* + * Need some syscall numbers based on different systems. + * These are based on: + * HPUX 10.10 /opt/dce/include/dcedfs/syscall.h + * Solaris 2.5 /opt/dcelocal/share/include/dcedfs/syscall.h + * AIX 4.2 - needs some funny games with load and kafs_syscall + * to get the kernel extentions. There should be a better way! + * + * DEE 5/27/97 + * + */ + + +#define AFSCALL_SETPAG 2 +#define AFSCALL_GETPAG 11 + +#if defined(sun) +#define AFS_SYSCALL 72 + +#elif defined(hpux) +/* assume HPUX 10 + or is it 50 */ +#define AFS_SYSCALL 326 + +#elif defined(_AIX) +#ifndef DPAGAIX +#define DPAGAIX LIBEXECDIR ## "/dpagaix" +#endif +int *load(); +static int (*dpagaix)(int, int, int, int, int, int) = 0; + +#elif defined(sgi) || defined(_sgi) +#define AFS_SYSCALL 206+1000 + +#else +#define AFS_SYSCALL (Unknown_DFS_AFS_SYSCALL) +#endif + + +#ifdef WAIT_USES_INT + int wait_status; +#else /* WAIT_USES_INT */ + union wait wait_status; +#endif /* WAIT_USES_INT */ + +#ifndef K5DCECON +#define K5DCECON LIBEXECDIR ## "/k5dcecon" +#endif + +/* + * mysig() + * + * signal handler if DFS not running + * + */ + +static sigjmp_buf setpag_buf; + +static sigtype mysig() +{ + siglongjmp(setpag_buf, 1); +} + +/* + * krb5_dfs_pag_syscall() + * + * wrapper for the syscall with signal handlers + * + */ + +static int krb5_dfs_pag_syscall(opt1,opt2) + int opt1; + int opt2; +{ + handler sa1, osa1; + handler sa2, osa2; + int pag = -2; + + handler_init (sa1, mysig); + handler_init (sa2, mysig); + handler_swap (SIGSYS, sa1, osa1); + handler_swap (SIGSEGV, sa2, osa2); + + if (sigsetjmp(setpag_buf, 1) == 0) { + +#if defined(_AIX) + if (!dpagaix) + dpagaix = load(DPAGAIX, 0, 0); + if (dpagaix) + pag = (*dpagaix)(opt1, opt2, 0, 0, 0, 0); +#else + pag = syscall(AFS_SYSCALL, opt1, opt2, 0, 0, 0, 0); +#endif + + handler_set (SIGSYS, osa1); + handler_set (SIGSEGV, osa2); + return(pag); + } + + /* syscall failed! return 0 */ + handler_set (SIGSYS, osa1); + handler_set (SIGSEGV, osa2); + return(-2); +} + +/* + * krb5_dfs_newpag() + * + * issue a DCE/DFS setpag system call to set the newpag + * for this process. This takes advantage of a currently + * undocumented feature of the Transarc port of DFS. + * Even in DCE 1.2.2 for which the source is available, + * (but no vendors have released), this feature is not + * there, but it should be, or could be added. + * If new_pag is zero, then the syscall will get a new pag + * and return its value. + */ + +int krb5_dfs_newpag(new_pag) + int new_pag; +{ + return(krb5_dfs_pag_syscall(AFSCALL_SETPAG, new_pag)); +} + +/* + * krb5_dfs_getpag() + * + * get the current PAG. Used mostly as a test. + */ + +int krb5_dfs_getpag() +{ + return(krb5_dfs_pag_syscall(AFSCALL_GETPAG, 0)); +} + +/* + * krb5_dfs_pag() + * + * Given a principal and local username, + * fork and exec the k5dcecon module to create + * refresh or join a new DCE/DFS + * Process Authentication Group (PAG) + * + * This routine should be called after krb5_kuserok has + * determined that this combination of local user and + * principal are acceptable for the local host. + * + * It should also be called after a forwarded ticket has + * been received, and the KRB5CCNAME environment variable + * has been set to point at it. k5dcecon will convert this + * to a new DCE context and a new pag and replace KRB5CCNAME + * in the environment. + * + * If there is no forwarded ticket, k5dcecon will attempt + * to join an existing PAG for the same principal and local + * user. + * + * And it should be called before access to the home directory + * as this may be in DFS, not accessable by root, and require + * the PAG to have been setup. + * + * The krb5_afs_pag can be called after this routine to + * use the the cache obtained by k5dcecon to get an AFS token. + * DEE - 7/97 + */ + +int krb5_dfs_pag(context, flag, principal, luser) + krb5_context context; + int flag; /* 1 if a forwarded TGT is to be used */ + krb5_principal principal; + const char *luser; + +{ + + struct stat stx; + int fd[2]; + int i,j; + int pid; + int new_pag; + int pag; + char newccname[MAXPATHLEN] = ""; + char *princ; + int err; + struct sigaction newsig, oldsig; + +#ifdef WAIT_USES_INT + int wait_status; +#else /* WAIT_USES_INT */ + union wait wait_status; +#endif /* WAIT_USES_INT */ + + if (krb5_unparse_name(context, principal, &princ)) + return(0); + + /* test if DFS is running or installed */ + if (krb5_dfs_getpag() == -2) + return(0); /* DFS not running, dont try */ + + if (pipe(fd) == -1) + return(0); + + /* Make sure that telnetd.c's SIGCHLD action don't happen right now... */ + memset((char *)&newsig, 0, sizeof(newsig)); + newsig.sa_handler = SIG_IGN; + sigaction(SIGCHLD, &newsig, &oldsig); + + pid = fork(); + if (pid <0) + return(0); + + if (pid == 0) { /* child process */ + + close(1); /* close stdout */ + dup(fd[1]); /* point stdout at pipe here */ + close(fd[0]); /* don't use end of pipe here */ + close(fd[1]); /* pipe now as stdout */ + + execl(K5DCECON, "k5dcecon", + (flag) ? "-f" : "-s" , + "-l", luser, + "-p", princ, (char *)0); + + exit(127); /* incase execl fails */ + } + + /* parent, wait for child to finish */ + + close(fd[1]); /* dont need this end of pipe */ + +/* #if defined(sgi) || defined(_sgi) */ + /* wait_status.w_status = 0; */ + /* waitpid((pid_t) pid, &wait_status.w_status, 0); */ +/* #else */ + + + wait_status = 0; +#ifdef HAVE_WAITPID + err = waitpid((pid_t) pid, &wait_status, 0); +#else /* HAVE_WAITPID */ + err = wait4(pid, &wait_status, 0, (struct rusage *) NULL); +#endif /* HAVE_WAITPID */ +/* #endif */ + + sigaction(SIGCHLD, &oldsig, 0); + if (WIFEXITED(wait_status)){ + if (WEXITSTATUS(wait_status) == 0) { + i = 1; + j = 0; + while (i != 0) { + i = read(fd[0], &newccname[j], sizeof(newccname)-1-j); + if ( i > 0) + j += i; + if (j >= sizeof(newccname)-1) + i = 0; + } + close(fd[0]); + if (j > 0) { + newccname[j] = '\0'; + esetenv("KRB5CCNAME",newccname,1); + sscanf(&newccname[j-8],"%8x",&new_pag); + if (new_pag && strncmp("FILE:/opt/dcelocal/var/security/creds/dcecred_", newccname, 46) == 0) { + if((pag = krb5_dfs_newpag(new_pag)) != -2) { + return(pag); + } + } + } + } + } + return(0); /* something not right */ +} + +#else /* DCE */ + +/* + * krb5_dfs_pag - dummy version for the lib for systems + * which don't have DFS, or the needed setpag kernel code. + */ + +krb5_boolean +krb5_dfs_pag(context, principal, luser) + krb5_context context; + krb5_principal principal; + const char *luser; +{ + return(0); +} + +#endif /* DCE */ |
