diff options
Diffstat (limited to 'bind-9.5-libcap.patch')
| -rw-r--r-- | bind-9.5-libcap.patch | 250 |
1 files changed, 0 insertions, 250 deletions
diff --git a/bind-9.5-libcap.patch b/bind-9.5-libcap.patch deleted file mode 100644 index a4cf386..0000000 --- a/bind-9.5-libcap.patch +++ /dev/null @@ -1,250 +0,0 @@ -diff -up bind-9.5.0b3/bin/named/unix/os.c.libcap bind-9.5.0b3/bin/named/unix/os.c ---- bind-9.5.0b3/bin/named/unix/os.c.libcap 2008-01-30 05:55:51.000000000 +0100 -+++ bind-9.5.0b3/bin/named/unix/os.c 2008-05-05 13:30:47.000000000 +0200 -@@ -69,7 +69,7 @@ static int devnullfd = -1; - /* - * Linux defines: - * (T) HAVE_LINUXTHREADS -- * (C) HAVE_LINUX_CAPABILITY_H -+ * (C) HAVE_SYS_CAPABILITY_H (or HAVE_LINUX_CAPABILITY_H) - * (P) HAVE_SYS_PRCTL_H - * The possible cases are: - * none: setuid() normally -@@ -116,16 +116,9 @@ static int dfd[2] = { -1, -1 }; - static isc_boolean_t non_root = ISC_FALSE; - static isc_boolean_t non_root_caps = ISC_FALSE; - --#if defined(HAVE_CAPSET) --#undef _POSIX_SOURCE - #ifdef HAVE_SYS_CAPABILITY_H - #include <sys/capability.h> - #else --#include <linux/capability.h> --int capset(cap_user_header_t hdrp, const cap_user_data_t datap); --#endif --#include <sys/prctl.h> --#else - /*% - * We define _LINUX_FS_H to prevent it from being included. We don't need - * anything from it, and the files it includes cause warnings with 2.2 -@@ -133,9 +126,15 @@ int capset(cap_user_header_t hdrp, const - * and <string.h>) on 2.3 kernels. - */ - #define _LINUX_FS_H -- --#include <sys/syscall.h> /* Required for syscall(). */ --#include <linux/capability.h> /* Required for _LINUX_CAPABILITY_VERSION. */ -+#include <linux/capability.h> -+#include <syscall.h> -+#ifndef SYS_capset -+#ifndef __NR_capset -+#include <asm/unistd.h> /* Slackware 4.0 needs this. */ -+#endif /* __NR_capset */ -+#define SYS_capset __NR_capset -+#endif /* SYS_capset */ -+#endif /* HAVE_SYS_CAPABILITY_H */ - - #ifdef HAVE_SYS_PRCTL_H - #include <sys/prctl.h> /* Required for prctl(). */ -@@ -152,23 +151,24 @@ int capset(cap_user_header_t hdrp, const - - #endif /* HAVE_SYS_PRCTL_H */ - --#ifndef SYS_capset --#ifndef __NR_capset --#include <asm/unistd.h> /* Slackware 4.0 needs this. */ --#endif --#define SYS_capset __NR_capset --#endif --#endif -+#ifdef HAVE_LIBCAP -+#define SETCAPS_FUNC "cap_set_proc " -+#else -+typedef unsigned int cap_t; -+#define SETCAPS_FUNC "syscall(capset) " -+#endif /* HAVE_LIBCAP */ - - static void --linux_setcaps(unsigned int caps) { -+linux_setcaps(cap_t caps) { -+#ifndef HAVE_LIBCAP - struct __user_cap_header_struct caphead; - struct __user_cap_data_struct cap; -+#endif - char strbuf[ISC_STRERRORSIZE]; - - if ((getuid() != 0 && !non_root_caps) || non_root) - return; -- -+#ifndef HAVE_LIBCAP - memset(&caphead, 0, sizeof(caphead)); - caphead.version = _LINUX_CAPABILITY_VERSION; - caphead.pid = 0; -@@ -176,46 +176,74 @@ linux_setcaps(unsigned int caps) { - cap.effective = caps; - cap.permitted = caps; - cap.inheritable = 0; --#ifdef HAVE_CAPSET -- if (capset(&caphead, &cap) < 0 ) { -- isc__strerror(errno, strbuf, sizeof(strbuf)); -- ns_main_earlyfatal("capset failed: %s:" -- " please ensure that the capset kernel" -- " module is loaded. see insmod(8)", -- strbuf); -- } -+#endif -+#ifdef HAVE_LIBCAP -+ if (cap_set_proc(caps) < 0) { - #else - if (syscall(SYS_capset, &caphead, &cap) < 0) { -+#endif - isc__strerror(errno, strbuf, sizeof(strbuf)); -- ns_main_earlyfatal("syscall(capset) failed: %s:" -+ ns_main_earlyfatal(SETCAPS_FUNC "failed: %s:" - " please ensure that the capset kernel" - " module is loaded. see insmod(8)", - strbuf); - } --#endif - } - -+#ifdef HAVE_LIBCAP -+#define SET_CAP(flag) \ -+ do { \ -+ capval = (flag); \ -+ err = cap_set_flag(caps, CAP_EFFECTIVE, 1, &capval, CAP_SET); \ -+ if (err == -1) { \ -+ isc__strerror(errno, strbuf, sizeof(strbuf)); \ -+ ns_main_earlyfatal("cap_set_proc failed: %s", strbuf); \ -+ } \ -+ \ -+ err = cap_set_flag(caps, CAP_PERMITTED, 1, &capval, CAP_SET); \ -+ if (err == -1) { \ -+ isc__strerror(errno, strbuf, sizeof(strbuf)); \ -+ ns_main_earlyfatal("cap_set_proc failed: %s", strbuf); \ -+ } \ -+ } while (0) -+#define INIT_CAP \ -+ do { \ -+ caps = cap_init(); \ -+ if (caps == NULL) { \ -+ isc__strerror(errno, strbuf, sizeof(strbuf)); \ -+ ns_main_earlyfatal("cap_init failed: %s", strbuf); \ -+ } \ -+ } while (0) -+#else -+#define SET_CAP(flag) { caps |= (1 << (flag)); } -+#define INIT_CAP { caps = 0; } -+#endif /* HAVE_LIBCAP */ -+ - static void - linux_initialprivs(void) { -- unsigned int caps; -+ cap_t caps; -+#ifdef HAVE_LIBCAP -+ cap_value_t capval; -+ char strbuf[ISC_STRERRORSIZE]; -+ int err; -+#endif - - /*% - * We don't need most privileges, so we drop them right away. - * Later on linux_minprivs() will be called, which will drop our - * capabilities to the minimum needed to run the server. - */ -- -- caps = 0; -+ INIT_CAP; - - /* - * We need to be able to bind() to privileged ports, notably port 53! - */ -- caps |= (1 << CAP_NET_BIND_SERVICE); -+ SET_CAP(CAP_NET_BIND_SERVICE); - - /* - * We need chroot() initially too. - */ -- caps |= (1 << CAP_SYS_CHROOT); -+ SET_CAP(CAP_SYS_CHROOT); - - #if defined(HAVE_SYS_PRCTL_H) || !defined(HAVE_LINUXTHREADS) - /* -@@ -224,19 +252,19 @@ linux_initialprivs(void) { - * tried) or we're not using threads. If either of these is - * true, we want the setuid capability. - */ -- caps |= (1 << CAP_SETUID); -+ SET_CAP(CAP_SETUID); - #endif - - /* - * Since we call initgroups, we need this. - */ -- caps |= (1 << CAP_SETGID); -+ SET_CAP(CAP_SETGID); - - /* - * Without this, we run into problems reading a configuration file - * owned by a non-root user and non-world-readable on startup. - */ -- caps |= (1 << CAP_DAC_READ_SEARCH); -+ SET_CAP(CAP_DAC_READ_SEARCH); - - /* - * XXX We might want to add CAP_SYS_RESOURCE, though it's not -@@ -245,15 +273,21 @@ linux_initialprivs(void) { - * of files, the stack size, data size, and core dump size to - * support named.conf options, this is now being added to test. - */ -- caps |= (1 << CAP_SYS_RESOURCE); -+ SET_CAP(CAP_SYS_RESOURCE); - - linux_setcaps(caps); - } - - static void - linux_minprivs(void) { -- unsigned int caps; -+ cap_t caps; -+#ifdef HAVE_LIBCAP -+ cap_value_t capval; -+ char strbuf[ISC_STRERRORSIZE]; -+ int err; -+#endif - -+ INIT_CAP; - /*% - * Drop all privileges except the ability to bind() to privileged - * ports. -@@ -262,8 +296,7 @@ linux_minprivs(void) { - * chroot() could be used to escape from the chrooted area. - */ - -- caps = 0; -- caps |= (1 << CAP_NET_BIND_SERVICE); -+ SET_CAP(CAP_NET_BIND_SERVICE); - - /* - * XXX We might want to add CAP_SYS_RESOURCE, though it's not -@@ -272,7 +305,7 @@ linux_minprivs(void) { - * of files, the stack size, data size, and core dump size to - * support named.conf options, this is now being added to test. - */ -- caps |= (1 << CAP_SYS_RESOURCE); -+ SET_CAP(CAP_SYS_RESOURCE); - - linux_setcaps(caps); - } -diff -up bind-9.5.0b3/configure.in.libcap bind-9.5.0b3/configure.in ---- bind-9.5.0b3/configure.in.libcap 2008-01-30 05:55:51.000000000 +0100 -+++ bind-9.5.0b3/configure.in 2008-05-05 13:28:34.000000000 +0200 -@@ -1876,7 +1876,7 @@ AC_ARG_ENABLE(linux-caps, - case "$enable_linux_caps" in - yes|'') - AC_CHECK_HEADERS(linux/capability.h sys/capability.h) -- AC_CHECK_FUNCS(capset) -+ AC_CHECK_LIB(cap, cap_set_proc) - ;; - no) - ;; |
