Author: oshogbo Date: Thu Feb 25 18:23:40 2016 New Revision: 296047 URL: https://svnweb.freebsd.org/changeset/base/296047
Log: Convert casperd(8) daemon to the libcasper. After calling the cap_init(3) function Casper will fork from it's original process, using pdfork(2). Forking from a process has a lot of advantages: 1. We have the same cwd as the original process. 2. The same uid, gid and groups. 3. The same MAC labels. 4. The same descriptor table. 5. The same routing table. 6. The same umask. 7. The same cpuset(1). From now services are also in form of libraries. We also removed libcapsicum at all and converts existing program using Casper to new architecture. Discussed with: pjd, jonathan, ed, [email protected], emaste Partially reviewed by: [email protected], bdrewery Approved by: pjd (mentor) Differential Revision: https://reviews.freebsd.org/D4277 Added: head/lib/libcasper/libcasper/ head/lib/libcasper/libcasper/Makefile (contents, props changed) head/lib/libcasper/libcasper/libcasper.3 (contents, props changed) head/lib/libcasper/libcasper/libcasper.c (contents, props changed) head/lib/libcasper/libcasper/libcasper.h (contents, props changed) head/lib/libcasper/libcasper/libcasper_impl.c (contents, props changed) head/lib/libcasper/libcasper/libcasper_impl.h (contents, props changed) head/lib/libcasper/libcasper/libcasper_service.c (contents, props changed) head/lib/libcasper/libcasper/libcasper_service.h (contents, props changed) head/lib/libcasper/libcasper/service.c (contents, props changed) head/lib/libcasper/libcasper/zygote.c (contents, props changed) head/lib/libcasper/libcasper/zygote.h (contents, props changed) head/lib/libcasper/services/ head/lib/libcasper/services/Makefile (contents, props changed) head/lib/libcasper/services/cap_dns/ head/lib/libcasper/services/cap_dns/Makefile (contents, props changed) head/lib/libcasper/services/cap_dns/cap_dns.c (contents, props changed) head/lib/libcasper/services/cap_dns/cap_dns.h (contents, props changed) head/lib/libcasper/services/cap_grp/ head/lib/libcasper/services/cap_grp/Makefile (contents, props changed) head/lib/libcasper/services/cap_grp/cap_grp.c (contents, props changed) head/lib/libcasper/services/cap_grp/cap_grp.h (contents, props changed) head/lib/libcasper/services/cap_pwd/ head/lib/libcasper/services/cap_pwd/Makefile (contents, props changed) head/lib/libcasper/services/cap_pwd/cap_pwd.c (contents, props changed) head/lib/libcasper/services/cap_pwd/cap_pwd.h (contents, props changed) head/lib/libcasper/services/cap_random/ head/lib/libcasper/services/cap_random/Makefile (contents, props changed) head/lib/libcasper/services/cap_random/cap_random.c (contents, props changed) head/lib/libcasper/services/cap_random/cap_random.h (contents, props changed) head/lib/libcasper/services/cap_sysctl/ head/lib/libcasper/services/cap_sysctl/Makefile (contents, props changed) head/lib/libcasper/services/cap_sysctl/cap_sysctl.c (contents, props changed) head/lib/libcasper/services/cap_sysctl/cap_sysctl.h (contents, props changed) head/tools/regression/capsicum/libcasper/ head/tools/regression/capsicum/libcasper/Makefile (contents, props changed) head/tools/regression/capsicum/libcasper/dns.c (contents, props changed) head/tools/regression/capsicum/libcasper/grp.c (contents, props changed) head/tools/regression/capsicum/libcasper/pwd.c (contents, props changed) head/tools/regression/capsicum/libcasper/sysctl.c (contents, props changed) Deleted: head/etc/rc.d/casperd head/lib/libcapsicum/ head/lib/libcasper/libcasper.c head/lib/libcasper/libcasper.h head/lib/libcasper/libcasper_impl.h head/libexec/casper/Makefile head/libexec/casper/dns/Makefile head/libexec/casper/dns/dns.c head/libexec/casper/grp/Makefile head/libexec/casper/grp/grp.c head/libexec/casper/pwd/Makefile head/libexec/casper/pwd/pwd.c head/libexec/casper/random/Makefile head/libexec/casper/random/random.c head/libexec/casper/sysctl/Makefile head/libexec/casper/sysctl/sysctl.c head/sbin/casperd/Makefile head/sbin/casperd/casperd.8 head/sbin/casperd/casperd.c head/sbin/casperd/zygote.c head/sbin/casperd/zygote.h head/tools/regression/capsicum/libcapsicum/ Modified: head/Makefile.inc1 head/ObsoleteFiles.inc head/contrib/mdocml/lib.in head/contrib/tcpdump/addrtoname.c head/contrib/tcpdump/config.h.in head/contrib/tcpdump/configure head/contrib/tcpdump/configure.in head/contrib/tcpdump/tcpdump.c head/etc/defaults/rc.conf head/etc/mtree/BSD.debug.dist head/etc/mtree/BSD.include.dist head/etc/mtree/BSD.root.dist head/etc/rc.d/Makefile head/gnu/usr.bin/groff/tmac/mdoc.local.in head/lib/Makefile head/lib/libc/posix1e/posix1e.3 head/lib/libcasper/Makefile head/libexec/Makefile head/libexec/rtld-elf/paths.h head/sbin/Makefile head/sbin/ping/Makefile head/sbin/ping/Makefile.depend head/sbin/ping/ping.c head/share/man/man4/capsicum.4 head/share/mk/bsd.libnames.mk head/share/mk/src.libnames.mk head/targets/pseudo/userland/Makefile.depend head/targets/pseudo/userland/lib/Makefile.depend head/targets/pseudo/userland/libexec/Makefile.depend head/usr.bin/kdump/Makefile head/usr.bin/kdump/kdump.c head/usr.sbin/tcpdump/tcpdump/Makefile head/usr.sbin/tcpdump/tcpdump/config.h Modified: head/Makefile.inc1 ============================================================================== --- head/Makefile.inc1 Thu Feb 25 18:20:54 2016 (r296046) +++ head/Makefile.inc1 Thu Feb 25 18:23:40 2016 (r296047) @@ -585,7 +585,7 @@ _worldtmp: .PHONY rm -f ${OBJTREE}${.CURDIR}/usr.bin/kdump/kdump_subr.c .endif .for _dir in \ - lib usr legacy/bin legacy/usr + lib lib/casper usr legacy/bin legacy/usr mkdir -p ${WORLDTMP}/${_dir} .endfor mtree -deU -f ${.CURDIR}/etc/mtree/BSD.usr.dist \ @@ -1870,7 +1870,7 @@ _prebuild_libs= ${_kerberos5_lib_libasn1 lib/libfigpar \ ${_lib_libgssapi} \ lib/libkiconv lib/libkvm lib/liblzma lib/libmd lib/libnv \ - ${_lib_libcapsicum} \ + ${_lib_casper} \ lib/ncurses/ncurses lib/ncurses/ncursesw \ lib/libopie lib/libpam ${_lib_libthr} \ ${_lib_libradius} lib/libsbuf lib/libtacplus \ @@ -1910,11 +1910,11 @@ _ofed_lib= contrib/ofed/usr.lib/ .endif .if ${MK_CASPER} != "no" -_lib_libcapsicum=lib/libcapsicum +_lib_casper= lib/libcasper .endif -lib/libcapsicum__L: lib/libnv__L lib/libpjdlog__L: lib/libutil__L +lib/libcasper__L: lib/libnv__L lib/liblzma__L: lib/libthr__L _generic_libs= ${_cddl_lib} gnu/lib ${_kerberos5_lib} lib ${_secure_lib} usr.bin/lex/lib ${_ofed_lib} Modified: head/ObsoleteFiles.inc ============================================================================== --- head/ObsoleteFiles.inc Thu Feb 25 18:20:54 2016 (r296046) +++ head/ObsoleteFiles.inc Thu Feb 25 18:23:40 2016 (r296047) @@ -38,6 +38,25 @@ # xargs -n1 | sort | uniq -d; # done +# 20160225: Remove casperd and libcapsicum. +OLD_FILES+=sbin/casperd +OLD_FILES+=etc/rc.d/casperd +OLD_FILES+=usr/share/man/man8/casperd.8.gz +OLD_FILES+=usr/include/libcapsicum.h +OLD_FILES+=usr/include/libcapsicum_service.h +OLD_FILES+=usr/include/libcapsicum.h +OLD_FILES+=usr/share/man/man3/libcapsicum.3.gz +OLD_FILES+=usr/include/libcapsicum_dns.h +OLD_FILES+=usr/include/libcapsicum_grp.h +OLD_FILES+=usr/include/libcapsicum_impl.h +OLD_FILES+=usr/include/libcapsicum_pwd.h +OLD_FILES+=usr/include/libcapsicum_random.h +OLD_FILES+=usr/include/libcapsicum_sysctl.h +OLD_FILES+=libexec/casper/dns +OLD_FILES+=libexec/casper/grp +OLD_FILES+=libexec/casper/pwd +OLD_FILES+=libexec/casper/random +OLD_FILES+=libexec/casper/sysctl # 20160223: functionality from mkulzma(1) merged into mkuzip(1) OLD_FILES+=usr/bin/mkulzma # 20160211: Remove obsolete unbound-control-setup Modified: head/contrib/mdocml/lib.in ============================================================================== --- head/contrib/mdocml/lib.in Thu Feb 25 18:20:54 2016 (r296046) +++ head/contrib/mdocml/lib.in Thu Feb 25 18:23:40 2016 (r296047) @@ -34,7 +34,7 @@ LINE("libc", "Standard C\\~Library (lib LINE("libc_r", "Reentrant C\\~Library (libc_r, \\-lc_r)") LINE("libcalendar", "Calendar Arithmetic Library (libcalendar, \\-lcalendar)") LINE("libcam", "Common Access Method User Library (libcam, \\-lcam)") -LINE("libcapsicum", "Capsicum Library (libcapsicum, \\-lcapsicum)") +LINE("libcasper", "Casper Library (libcasper, \\-lcapser)") LINE("libcdk", "Curses Development Kit Library (libcdk, \\-lcdk)") LINE("libcipher", "FreeSec Crypt Library (libcipher, \\-lcipher)") LINE("libcompat", "Compatibility Library (libcompat, \\-lcompat)") Modified: head/contrib/tcpdump/addrtoname.c ============================================================================== --- head/contrib/tcpdump/addrtoname.c Thu Feb 25 18:20:54 2016 (r296046) +++ head/contrib/tcpdump/addrtoname.c Thu Feb 25 18:23:40 2016 (r296047) @@ -29,10 +29,10 @@ #include "config.h" #endif -#ifdef HAVE_CAPSICUM -#include <libcapsicum.h> -#include <libcapsicum_dns.h> -#endif /* HAVE_CAPSICUM */ +#ifdef HAVE_CAPSPER +#include <libcasper.h> +#include <casper/cap_dns.h> +#endif /* HAVE_CAPSPER */ #include <tcpdump-stdinc.h> #ifdef USE_ETHER_NTOHOST @@ -204,7 +204,7 @@ intoa(uint32_t addr) static uint32_t f_netmask; static uint32_t f_localnet; -#ifdef HAVE_CAPSICUM +#ifdef HAVE_CAPSPER extern cap_channel_t *capdns; #endif @@ -252,7 +252,7 @@ getname(netdissect_options *ndo, const u */ if (!ndo->ndo_nflag && (addr & f_netmask) == f_localnet) { -#ifdef HAVE_CAPSICUM +#ifdef HAVE_CAPSPER if (capdns != NULL) { hp = cap_gethostbyaddr(capdns, (char *)&addr, 4, AF_INET); @@ -309,7 +309,7 @@ getname6(netdissect_options *ndo, const * Do not print names if -n was given. */ if (!ndo->ndo_nflag) { -#ifdef HAVE_CAPSICUM +#ifdef HAVE_CAPSPER if (capdns != NULL) { hp = cap_gethostbyaddr(capdns, (char *)&addr, sizeof(addr), AF_INET6); Modified: head/contrib/tcpdump/config.h.in ============================================================================== --- head/contrib/tcpdump/config.h.in Thu Feb 25 18:20:54 2016 (r296046) +++ head/contrib/tcpdump/config.h.in Thu Feb 25 18:23:40 2016 (r296047) @@ -10,7 +10,7 @@ #undef HAVE_BPF_DUMP /* capsicum support available */ -#undef HAVE_CAPSICUM +#undef HAVE_CAPSPER /* Define to 1 if you have the `cap_enter' function. */ #undef HAVE_CAP_ENTER Modified: head/contrib/tcpdump/configure ============================================================================== --- head/contrib/tcpdump/configure Thu Feb 25 18:20:54 2016 (r296046) +++ head/contrib/tcpdump/configure Thu Feb 25 18:23:40 2016 (r296047) @@ -4566,7 +4566,7 @@ fi $as_echo_n "checking whether to sandbox using capsicum... " >&6; } if test "x$ac_lbl_capsicum_function_seen" = "xyes" -a "x$ac_lbl_capsicum_function_not_seen" != "xyes"; then -$as_echo "#define HAVE_CAPSICUM 1" >>confdefs.h +$as_echo "#define HAVE_CAPSPER 1" >>confdefs.h { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } Modified: head/contrib/tcpdump/configure.in ============================================================================== --- head/contrib/tcpdump/configure.in Thu Feb 25 18:20:54 2016 (r296046) +++ head/contrib/tcpdump/configure.in Thu Feb 25 18:23:40 2016 (r296047) @@ -222,7 +222,7 @@ if test ! -z "$with_sandbox-capsicum" && fi AC_MSG_CHECKING([whether to sandbox using capsicum]) if test "x$ac_lbl_capsicum_function_seen" = "xyes" -a "x$ac_lbl_capsicum_function_not_seen" != "xyes"; then - AC_DEFINE(HAVE_CAPSICUM, 1, [capsicum support available]) + AC_DEFINE(HAVE_CASPER, 1, [casper support available]) AC_MSG_RESULT(yes) else AC_MSG_RESULT(no) Modified: head/contrib/tcpdump/tcpdump.c ============================================================================== --- head/contrib/tcpdump/tcpdump.c Thu Feb 25 18:20:54 2016 (r296046) +++ head/contrib/tcpdump/tcpdump.c Thu Feb 25 18:23:40 2016 (r296047) @@ -87,17 +87,16 @@ extern int SIZE_BUF; #include <sys/capsicum.h> #include <sys/sysctl.h> #endif /* __FreeBSD__ */ -#ifdef HAVE_CAPSICUM -#include <libcapsicum.h> -#include <libcapsicum_dns.h> -#include <libcapsicum_service.h> +#ifdef HAVE_CAPSPER +#include <libcasper.h> +#include <casper/cap_dns.h> #include <sys/nv.h> #include <sys/capability.h> #include <sys/ioccom.h> #include <net/bpf.h> #include <fcntl.h> #include <libgen.h> -#endif /* HAVE_CAPSICUM */ +#endif /* HAVE_CAPSPER */ #include <pcap.h> #include <signal.h> #include <stdio.h> @@ -161,7 +160,7 @@ static int infoprint; char *program_name; -#ifdef HAVE_CAPSICUM +#ifdef HAVE_CAPSPER cap_channel_t *capdns; #endif @@ -485,7 +484,7 @@ struct dump_info { char *CurrentFileName; pcap_t *pd; pcap_dumper_t *p; -#ifdef HAVE_CAPSICUM +#ifdef HAVE_CAPSPER int dirfd; #endif }; @@ -909,7 +908,7 @@ get_next_file(FILE *VFile, char *ptr) return ret; } -#ifdef HAVE_CAPSICUM +#ifdef HAVE_CAPSPER static cap_channel_t * capdns_setup(void) { @@ -918,10 +917,8 @@ capdns_setup(void) int families[2]; capcas = cap_init(); - if (capcas == NULL) { - warning("unable to contact casperd"); - return (NULL); - } + if (capcas == NULL) + error("unable to create casper process"); capdnsloc = cap_service_open(capcas, "system.dns"); /* Casper capability no longer needed. */ cap_close(capcas); @@ -938,7 +935,7 @@ capdns_setup(void) return (capdnsloc); } -#endif /* HAVE_CAPSICUM */ +#endif /* HAVE_CAPSPER */ #ifdef HAVE_PCAP_SET_TSTAMP_PRECISION static int @@ -970,7 +967,7 @@ tstamp_precision_to_string(int precision } #endif -#ifdef HAVE_CAPSICUM +#ifdef HAVE_CAPSPER /* * Ensure that, on a dump file's descriptor, we have all the rights * necessary to make the standard I/O library work with an fdopen()ed @@ -1070,9 +1067,9 @@ main(int argc, char **argv) #endif int status; FILE *VFile; -#ifdef HAVE_CAPSICUM +#ifdef HAVE_CAPSPER cap_rights_t rights; -#endif /* HAVE_CAPSICUM */ +#endif /* HAVE_CAPSPER */ int cansandbox; #ifdef WIN32 @@ -1613,7 +1610,7 @@ main(int argc, char **argv) if (pd == NULL) error("%s", ebuf); -#ifdef HAVE_CAPSICUM +#ifdef HAVE_CAPSPER cap_rights_init(&rights, CAP_READ); if (cap_rights_limit(fileno(pcap_file(pd)), &rights) < 0 && errno != ENOSYS) { @@ -1850,10 +1847,10 @@ main(int argc, char **argv) exit(0); } -#ifdef HAVE_CAPSICUM +#ifdef HAVE_CAPSPER if (!nflag) capdns = capdns_setup(); -#endif /* HAVE_CAPSICUM */ +#endif /* HAVE_CAPSPER */ init_addrtoname(gndo, localnet, netmask); init_checksum(); @@ -1921,7 +1918,7 @@ main(int argc, char **argv) if (pcap_setfilter(pd, &fcode) < 0) error("%s", pcap_geterr(pd)); -#ifdef HAVE_CAPSICUM +#ifdef HAVE_CAPSPER if (RFileName == NULL && VFileName == NULL) { static const unsigned long cmds[] = { BIOCGSTATS }; @@ -1971,11 +1968,11 @@ main(int argc, char **argv) #endif /* HAVE_LIBCAP_NG */ if (p == NULL) error("%s", pcap_geterr(pd)); -#ifdef HAVE_CAPSICUM +#ifdef HAVE_CAPSPER set_dumper_capsicum_rights(p); #endif if (Cflag != 0 || Gflag != 0) { -#ifdef HAVE_CAPSICUM +#ifdef HAVE_CAPSPER dumpinfo.WFileName = strdup(basename(WFileName)); dumpinfo.dirfd = open(dirname(WFileName), O_DIRECTORY | O_RDONLY); @@ -1993,7 +1990,7 @@ main(int argc, char **argv) errno != ENOSYS) { error("unable to limit dump descriptor fcntls"); } -#else /* !HAVE_CAPSICUM */ +#else /* !HAVE_CAPSPER */ dumpinfo.WFileName = WFileName; #endif callback = dump_packet_and_trunc; @@ -2069,7 +2066,7 @@ main(int argc, char **argv) #ifdef __FreeBSD__ cansandbox = (VFileName == NULL && zflag == NULL); -#ifdef HAVE_CAPSICUM +#ifdef HAVE_CAPSPER cansandbox = (cansandbox && (nflag || capdns != NULL)); #else cansandbox = (cansandbox && nflag); @@ -2125,7 +2122,7 @@ main(int argc, char **argv) pd = pcap_open_offline(RFileName, ebuf); if (pd == NULL) error("%s", ebuf); -#ifdef HAVE_CAPSICUM +#ifdef HAVE_CAPSPER cap_rights_init(&rights, CAP_READ); if (cap_rights_limit(fileno(pcap_file(pd)), &rights) < 0 && errno != ENOSYS) { @@ -2328,7 +2325,7 @@ dump_packet_and_trunc(u_char *user, cons /* If the time is greater than the specified window, rotate */ if (t - Gflag_time >= Gflag) { -#ifdef HAVE_CAPSICUM +#ifdef HAVE_CAPSPER FILE *fp; int fd; #endif @@ -2386,7 +2383,7 @@ dump_packet_and_trunc(u_char *user, cons capng_update(CAPNG_ADD, CAPNG_EFFECTIVE, CAP_DAC_OVERRIDE); capng_apply(CAPNG_SELECT_BOTH); #endif /* HAVE_LIBCAP_NG */ -#ifdef HAVE_CAPSICUM +#ifdef HAVE_CAPSPER fd = openat(dump_info->dirfd, dump_info->CurrentFileName, O_CREAT | O_WRONLY | O_TRUNC, 0644); @@ -2400,7 +2397,7 @@ dump_packet_and_trunc(u_char *user, cons dump_info->CurrentFileName); } dump_info->p = pcap_dump_fopen(dump_info->pd, fp); -#else /* !HAVE_CAPSICUM */ +#else /* !HAVE_CAPSPER */ dump_info->p = pcap_dump_open(dump_info->pd, dump_info->CurrentFileName); #endif #ifdef HAVE_LIBCAP_NG @@ -2409,7 +2406,7 @@ dump_packet_and_trunc(u_char *user, cons #endif /* HAVE_LIBCAP_NG */ if (dump_info->p == NULL) error("%s", pcap_geterr(pd)); -#ifdef HAVE_CAPSICUM +#ifdef HAVE_CAPSPER set_dumper_capsicum_rights(dump_info->p); #endif } @@ -2426,7 +2423,7 @@ dump_packet_and_trunc(u_char *user, cons if (size == -1) error("ftell fails on output file"); if (size > Cflag) { -#ifdef HAVE_CAPSICUM +#ifdef HAVE_CAPSPER FILE *fp; int fd; #endif @@ -2458,7 +2455,7 @@ dump_packet_and_trunc(u_char *user, cons capng_update(CAPNG_ADD, CAPNG_EFFECTIVE, CAP_DAC_OVERRIDE); capng_apply(CAPNG_SELECT_BOTH); #endif /* HAVE_LIBCAP_NG */ -#ifdef HAVE_CAPSICUM +#ifdef HAVE_CAPSPER fd = openat(dump_info->dirfd, dump_info->CurrentFileName, O_CREAT | O_WRONLY | O_TRUNC, 0644); if (fd < 0) { @@ -2471,7 +2468,7 @@ dump_packet_and_trunc(u_char *user, cons dump_info->CurrentFileName); } dump_info->p = pcap_dump_fopen(dump_info->pd, fp); -#else /* !HAVE_CAPSICUM */ +#else /* !HAVE_CAPSPER */ dump_info->p = pcap_dump_open(dump_info->pd, dump_info->CurrentFileName); #endif #ifdef HAVE_LIBCAP_NG @@ -2480,7 +2477,7 @@ dump_packet_and_trunc(u_char *user, cons #endif /* HAVE_LIBCAP_NG */ if (dump_info->p == NULL) error("%s", pcap_geterr(pd)); -#ifdef HAVE_CAPSICUM +#ifdef HAVE_CAPSPER set_dumper_capsicum_rights(dump_info->p); #endif } Modified: head/etc/defaults/rc.conf ============================================================================== --- head/etc/defaults/rc.conf Thu Feb 25 18:20:54 2016 (r296046) +++ head/etc/defaults/rc.conf Thu Feb 25 18:23:40 2016 (r296047) @@ -681,7 +681,6 @@ newsyslog_enable="YES" # Run newsyslog a newsyslog_flags="-CN" # Newsyslog flags to create marked files mixer_enable="YES" # Run the sound mixer. opensm_enable="NO" # Opensm(8) for infiniband devices defaults to off -casperd_enable="YES" # casperd(8) daemon # rctl(8) requires kernel options RACCT and RCTL rctl_enable="YES" # Load rctl(8) rules on boot Modified: head/etc/mtree/BSD.debug.dist ============================================================================== --- head/etc/mtree/BSD.debug.dist Thu Feb 25 18:20:54 2016 (r296046) +++ head/etc/mtree/BSD.debug.dist Thu Feb 25 18:23:40 2016 (r296047) @@ -15,8 +15,6 @@ lib geom .. - .. - libexec casper .. .. Modified: head/etc/mtree/BSD.include.dist ============================================================================== --- head/etc/mtree/BSD.include.dist Thu Feb 25 18:20:54 2016 (r296046) +++ head/etc/mtree/BSD.include.dist Thu Feb 25 18:23:40 2016 (r296047) @@ -93,6 +93,8 @@ scsi .. .. + casper + .. crypto .. dev Modified: head/etc/mtree/BSD.root.dist ============================================================================== --- head/etc/mtree/BSD.root.dist Thu Feb 25 18:20:54 2016 (r296046) +++ head/etc/mtree/BSD.root.dist Thu Feb 25 18:23:40 2016 (r296047) @@ -80,12 +80,12 @@ .. .. lib + casper + .. geom .. .. libexec - casper - .. resolvconf .. .. Modified: head/etc/rc.d/Makefile ============================================================================== --- head/etc/rc.d/Makefile Thu Feb 25 18:20:54 2016 (r296046) +++ head/etc/rc.d/Makefile Thu Feb 25 18:23:40 2016 (r296047) @@ -21,7 +21,6 @@ FILES= DAEMON \ ${_bluetooth} \ bridge \ ${_bthidd} \ - ${_casperd} \ cleanvar \ cleartmp \ cron \ @@ -176,10 +175,6 @@ FILES+= bootparams FILES+= bsnmpd .endif -.if ${MK_CASPER} != "no" -_casperd= casperd -.endif - .if ${MK_CCD} != "no" FILES+= ccd .endif Modified: head/gnu/usr.bin/groff/tmac/mdoc.local.in ============================================================================== --- head/gnu/usr.bin/groff/tmac/mdoc.local.in Thu Feb 25 18:20:54 2016 (r296046) +++ head/gnu/usr.bin/groff/tmac/mdoc.local.in Thu Feb 25 18:23:40 2016 (r296047) @@ -34,7 +34,7 @@ .\" FreeBSD .Lb values .ds doc-str-Lb-libarchive Streaming Archive Library (libarchive, \-larchive) .ds doc-str-Lb-libbluetooth Bluetooth User Library (libbluetooth, \-lbluetooth) -.ds doc-str-Lb-libcapsicum Capsicum Library (libcapsicum, \-lcapsicum) +.ds doc-str-Lb-libcseper Casper Library (libcapsicum, \-lcasper) .ds doc-str-Lb-libcuse Userland Character Device Library (libcuse, \-lcuse) .ds doc-str-Lb-libedit Line Editor and History Library (libedit, \-ledit) .ds doc-str-Lb-libefi EFI Runtime Services Library (libefi, \-lefi) Modified: head/lib/Makefile ============================================================================== --- head/lib/Makefile Thu Feb 25 18:20:54 2016 (r296046) +++ head/lib/Makefile Thu Feb 25 18:23:40 2016 (r296047) @@ -36,7 +36,6 @@ SUBDIR= ${SUBDIR_ORDERED} \ libbz2 \ libcalendar \ libcam \ - ${_libcapsicum} \ ${_libcasper} \ ${_libcom_err} \ libcompat \ @@ -135,8 +134,7 @@ SUBDIR_DEPEND_libbsnmp= ${_libnetgraph} SUBDIR_DEPEND_libc++:= libcxxrt SUBDIR_DEPEND_libc= libcompiler_rt SUBDIR_DEPEND_libcam= libsbuf -SUBDIR_DEPEND_libcapsicum= libnv -SUBDIR_DEPEND_libcasper= libcapsicum libnv libpjdlog +SUBDIR_DEPEND_libcasper= libnv SUBDIR_DEPEND_libdevstat= libkvm SUBDIR_DEPEND_libdpv= libfigpar ncurses libutil SUBDIR_DEPEND_libedit= ncurses @@ -171,7 +169,6 @@ _libbsnmp= libbsnmp .endif .if ${MK_CASPER} != "no" -_libcapsicum= libcapsicum _libcasper= libcasper .endif Modified: head/lib/libc/posix1e/posix1e.3 ============================================================================== --- head/lib/libc/posix1e/posix1e.3 Thu Feb 25 18:20:54 2016 (r296046) +++ head/lib/libc/posix1e/posix1e.3 Thu Feb 25 18:23:40 2016 (r296047) @@ -25,7 +25,7 @@ .\" .\" $FreeBSD$ .\" -.Dd April 15, 2014 +.Dd February 25, 2016 .Dt POSIX1E 3 .Os .Sh NAME @@ -94,7 +94,7 @@ for mandatory access control labels. .Xr acl 3 , .Xr extattr 3 , .Xr libbsm 3 , -.Xr libcapsicum 3 , +.Xr libcasper 3 , .Xr mac 3 , .Xr capsicum 4 , .Xr ffs 7 , Modified: head/lib/libcasper/Makefile ============================================================================== --- head/lib/libcasper/Makefile Thu Feb 25 18:20:54 2016 (r296046) +++ head/lib/libcasper/Makefile Thu Feb 25 18:23:40 2016 (r296047) @@ -1,19 +1,6 @@ # $FreeBSD$ -LIB= casper +SUBDIR= libcasper +SUBDIR+= services -SHLIB_MAJOR= 0 -SHLIBDIR?= /lib - -SRCS= libcasper.c -INCS= libcasper.h - -LIBADD= capsicum nv pjdlog - -CFLAGS+=-I${.CURDIR} -CFLAGS+=-I${.CURDIR}/../libpjdlog -CFLAGS+=-I${.CURDIR}/../../sbin/casper - -WARNS?= 6 - -.include <bsd.lib.mk> +.include <bsd.subdir.mk> Added: head/lib/libcasper/libcasper/Makefile ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/lib/libcasper/libcasper/Makefile Thu Feb 25 18:23:40 2016 (r296047) @@ -0,0 +1,38 @@ +# $FreeBSD$ + +LIB= casper + +SHLIB_MAJOR= 0 +SHLIBDIR?= /lib + +SRCS= libcasper.c +SRCS+= libcasper_impl.c +SRCS+= libcasper_service.c +SRCS+= service.c +SRCS+= zygote.c + +INCS= libcasper.h +INCS+= libcasper_service.h + +LIBADD= nv + +CFLAGS+=-I${.CURDIR} + +WARNS?= 6 + +MAN+= libcasper.3 + +MLINKS+=libcasper.3 cap_init.3 +MLINKS+=libcasper.3 cap_wrap.3 +MLINKS+=libcasper.3 cap_unwrap.3 +MLINKS+=libcasper.3 cap_sock.3 +MLINKS+=libcasper.3 cap_clone.3 +MLINKS+=libcasper.3 cap_close.3 +MLINKS+=libcasper.3 cap_limit_get.3 +MLINKS+=libcasper.3 cap_limit_set.3 +MLINKS+=libcasper.3 cap_send_nvlist.3 +MLINKS+=libcasper.3 cap_recv_nvlist.3 +MLINKS+=libcasper.3 cap_xfer_nvlist.3 +MLINKS+=libcasper.3 cap_service_open.3 + +.include <bsd.lib.mk> Added: head/lib/libcasper/libcasper/libcasper.3 ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/lib/libcasper/libcasper/libcasper.3 Thu Feb 25 18:23:40 2016 (r296047) @@ -0,0 +1,295 @@ +.\" Copyright (c) 2013 The FreeBSD Foundation +.\" All rights reserved. +.\" +.\" This documentation was written by Pawel Jakub Dawidek under sponsorship +.\" from the FreeBSD Foundation. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" $FreeBSD$ +.\" +.Dd February 25, 2016 +.Dt LIBCASPER 3 +.Os +.Sh NAME +.Nm cap_init , +.Nm cap_wrap , +.Nm cap_unwrap , +.Nm cap_sock , +.Nm cap_clone , +.Nm cap_close , +.Nm cap_limit_get , +.Nm cap_limit_set , +.Nm cap_send_nvlist , +.Nm cap_recv_nvlist , +.Nm cap_xfer_nvlist , +.Nm cap_service_open +.Nd "library for handling application capabilities" +.Sh LIBRARY +.Lb libcasper +.Sh SYNOPSIS +.In libcasper.h +.In nv.h +.Ft "cap_channel_t *" +.Fn cap_init "void" +.Ft "cap_channel_t *" +.Fn cap_wrap "int sock" +.Ft "int" +.Fn cap_unwrap "cap_channel_t *chan" +.Ft "int" +.Fn cap_sock "const cap_channel_t *chan" +.Ft "cap_channel_t *" +.Fn cap_clone "const cap_channel_t *chan" +.Ft "void" +.Fn cap_close "cap_channel_t *chan" +.Ft "int" +.Fn cap_limit_get "const cap_channel_t *chan" "nvlist_t **limitsp" +.Ft "int" +.Fn cap_limit_set "const cap_channel_t *chan" "nvlist_t *limits" +.Ft "int" +.Fn cap_send_nvlist "const cap_channel_t *chan" "const nvlist_t *nvl" +.Ft "nvlist_t *" +.Fn cap_recv_nvlist "const cap_channel_t *chan" "int flags" +.Ft "nvlist_t *" +.Fn cap_xfer_nvlist "const cap_channel_t *chan" "nvlist_t *nvl" "int flags" +.Ft "cap_channel_t *" +.Fn cap_service_open "const cap_channel_t *chan" "const char *name" +.Sh DESCRIPTION +The +.Nm libcapsicum +library allows to manage application capabilities through the casper process. +.Pp +The application capability (represented by the +.Vt cap_channel_t +type) is a communication channel between the caller and the casper process +daemon or an instance of one of its services. +A capability to the casper process obtained with the +.Fn cap_init +function allows to create capabilities to casper's services via the +.Fn cap_service_open +function. +.Pp +The +.Fn cap_init +function opens capability to the casper process. +.Pp +The +.Fn cap_wrap +function creates +.Vt cap_channel_t +based on the given socket. +The function is used when capability is inherited through +.Xr execve 2 +or send over +.Xr unix 4 +domain socket as a regular file descriptor and has to be represented as +.Vt cap_channel_t +again. +.Pp +The +.Fn cap_unwrap +function is the opposite of the +.Fn cap_wrap +function. +It frees the +.Vt cap_channel_t +structure and returns +.Xr unix 4 +domain socket associated with it. +.Pp +The +.Fn cap_clone +function clones the given capability. +.Pp +The +.Fn cap_close +function closes the given capability. +.Pp +The +.Fn cap_sock +function returns +.Xr unix 4 +domain socket descriptor associated with the given capability for use with +system calls like +.Xr kevent 2 , +.Xr poll 2 +and +.Xr select 2 . +.Pp +The +.Fn cap_limit_get +function stores current limits of the given capability in the +.Fa limitsp +argument. +If the function return +.Va 0 +and +.Dv NULL +is stored in +.Fa limitsp +it means there are no limits set. +.Pp +The +.Fn cap_limit_set +function sets limits for the given capability. +The limits are provided as nvlist. +The exact format depends on the service the capability represents. +.Pp +The +.Fn cap_send_nvlist +function sends the given nvlist over the given capability. +This is low level interface to communicate with casper services. +Most services should provide higher level API. +.Pp +The +.Fn cap_recv_nvlist +function receives the given nvlist over the given capability. +The +.Fa flags +argument defines what type the top nvlist is expected to be. +If the nvlist flags do not match the flags passed to +.Fn cap_recv_nvlist , +the nvlist will not be returned. +.Pp +The +.Fn cap_xfer_nvlist +function sends the given nvlist, destroys it and receives new nvlist in +response over the given capability. +The +.Fa flags +argument defines what type the top nvlist is expected to be. +If the nvlist flags do not match the flags passed to +.Fn cap_xfer_nvlist , +the nvlist will not be returned. +It does not matter if the function succeeds or fails, the nvlist given +for sending will always be destroyed once the function returns. +.Pp +The +.Fn cap_service_open +function opens casper service of the given name through casper capability +obtained via the +.Fn cap_init +function. +The function returns capability that provides access to opened service. +.Sh RETURN VALUES +The +.Fn cap_clone , +.Fn cap_init , +.Fn cap_recv_nvlist , +.Fn cap_service_open , +.Fn cap_wrap +and +.Fn cap_xfer_nvlist +functions return +.Dv NULL +and set the +.Va errno +variable on failure. +.Pp +The +.Fn cap_limit_get , +.Fn cap_limit_set +and +.Fn cap_send_nvlist +functions return +.Dv -1 +and set the +.Va errno +variable on failure. +.Pp +The +.Fn cap_close , +.Fn cap_sock +and +.Fn cap_unwrap +functions always succeed. +.Sh EXAMPLES +The following example first opens capability to the casper then using this +capability creates new capability to the +.Nm system.dns +casper service and uses the latter capability to resolve IP address. +.Bd -literal +cap_channel_t *capcas, *capdns; +nvlist_t *limits; +const char *ipstr = "127.0.0.1"; +struct in_addr ip; +struct hostent *hp; + +/* Open capability to the Casper. */ +capcas = cap_init(); +if (capcas == NULL) + err(1, "Unable to contact Casper"); + +/* Enter capability mode sandbox. */ +if (cap_enter() < 0 && errno != ENOSYS) + err(1, "Unable to enter capability mode"); + +/* Use Casper capability to create capability to the system.dns service. */ +capdns = cap_service_open(capcas, "system.dns"); +if (capdns == NULL) + err(1, "Unable to open system.dns service"); + +/* Close Casper capability, we don't need it anymore. */ +cap_close(capcas); + +/* Limit system.dns to reverse DNS lookups and IPv4 addresses. */ +limits = nvlist_create(0); +nvlist_add_string(limits, "type", "ADDR"); +nvlist_add_number(limits, "family", (uint64_t)AF_INET); +if (cap_limit_set(capdns, limits) < 0) + err(1, "Unable to limit access to the system.dns service"); + +/* Convert IP address in C-string to in_addr. */ +if (!inet_aton(ipstr, &ip)) + errx(1, "Unable to parse IP address %s.", ipstr); + +/* Find hostname for the given IP address. */ +hp = cap_gethostbyaddr(capdns, (const void *)&ip, sizeof(ip), AF_INET); +if (hp == NULL) + errx(1, "No name associated with %s.", ipstr); + +printf("Name associated with %s is %s.\\n", ipstr, hp->h_name); +.Ed +.Sh SEE ALSO +.Xr cap_enter 2 , +.Xr execve 2 , +.Xr kevent 2 , +.Xr poll 2 , +.Xr select 2 , +.Xr cap_gethostbyaddr 3 , +.Xr err 3 , +.Xr gethostbyaddr 3 , +.Xr inet_aton 3 , +.Xr nv 3 , +.Xr capsicum 4 , +.Xr unix 4 +.Sh AUTHORS +The +.Nm libcasper +library was implemented by +.An Pawel Jakub Dawidek Aq Mt [email protected] +under sponsorship from the FreeBSD Foundation. +The +.Nm libcasper +new architecture was implemented by +.An Mariusz Zaborski Aq Mt [email protected] +. Added: head/lib/libcasper/libcasper/libcasper.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/lib/libcasper/libcasper/libcasper.c Thu Feb 25 18:23:40 2016 (r296047) @@ -0,0 +1,337 @@ +/*- + * Copyright (c) 2012-2013 The FreeBSD Foundation + * Copyright (c) 2015 Mariusz Zaborski <[email protected]> + * All rights reserved. + * + * This software was developed by Pawel Jakub Dawidek under sponsorship from + * the FreeBSD Foundation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/types.h> +#include <sys/socket.h> +#include <sys/nv.h> +#include <sys/procdesc.h> + +#include <assert.h> +#include <errno.h> +#include <stdbool.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "libcasper.h" +#include "libcasper_impl.h" + +/* + * Structure describing communication channel between two separated processes. + */ +#define CAP_CHANNEL_MAGIC 0xcac8a31 +struct cap_channel { + /* + * Magic value helps to ensure that a pointer to the right structure is + * passed to our functions. + */ + int cch_magic; + /* Socket descriptor for IPC. */ + int cch_sock; + /* Process descriptor for casper. */ + int cch_pd; +}; + +static bool +cap_add_pd(cap_channel_t *chan, int pd) +{ + + if (!fd_is_valid(pd)) + return (false); + chan->cch_pd = pd; + return (true); +} + +cap_channel_t * +cap_init(void) +{ + pid_t pid; + int sock[2], serrno, pfd; + bool ret; + cap_channel_t *chan; + + if (socketpair(PF_UNIX, SOCK_STREAM | SOCK_NONBLOCK, 0, + sock) == -1) { + return (NULL); + } + + pid = pdfork(&pfd, 0); + if (pid == 0) { + /* Parent. */ + close(sock[0]); + casper_main_loop(sock[1]); + /* NOTREACHED. */ + } else if (pid > 0) { + /* Child. */ + close(sock[1]); + chan = cap_wrap(sock[0]); + if (chan == NULL) { + serrno = errno; + close(sock[0]); + close(pfd); + errno = serrno; + return (NULL); + } + ret = cap_add_pd(chan, pfd); + assert(ret); + return (chan); + } + + /* Error. */ + serrno = errno; + close(sock[0]); + close(sock[1]); + errno = serrno; + return (NULL); +} *** DIFF OUTPUT TRUNCATED AT 1000 LINES *** _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "[email protected]"
