- readded bind-9.5-libcap.patchbind-9_5_0-31_b3_fc10

- added bind-9.5-recv-race.patch from F8 branch (#400461)

1 files changed, 259 insertions, 0 deletions

diff --git a/bind-9.5-libcap.patch b/bind-9.5-libcap.patch
new file mode 100644
index 0000000..3140eff
--- /dev/null
+++ b/bind-9.5-libcap.patch
@@ -0,0 +1,259 @@
+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 10:56:00.000000000 +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 +126,20 @@ 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>
++#ifdef HAVE_CAPSET
++int capset(cap_user_header_t hdrp, const cap_user_data_t datap);
++#else
++/* We don't have libcap or capset, let's use syscall*/
++#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_CAPSET */
++#endif /* HAVE_SYS_CAPABILITY_H */
+ 
+ #ifdef HAVE_SYS_PRCTL_H
+ #include <sys/prctl.h>		/* Required for prctl(). */
+@@ -152,23 +156,28 @@ 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;
++#ifdef HAVE_CAPSET
++#define SETCAPS_FUNC "capset "
++#else
++#define SETCAPS_FUNC "syscall(capset) "
++#endif /* HAVE_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 +185,76 @@ linux_setcaps(unsigned int caps) {
+ 	cap.effective = caps;
+ 	cap.permitted = caps;
+ 	cap.inheritable = 0;
+-#ifdef HAVE_CAPSET
++#endif
++#ifdef HAVE_LIBCAP
++	if (cap_set_proc(caps) < 0) {
++#elif defined(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);
+-	}
+ #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 +263,19 @@ 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 +284,21 @@ 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 +307,7 @@ 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 +316,7 @@ 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 10:53:11.000000000 +0200
+@@ -1876,6 +1876,7 @@ AC_ARG_ENABLE(linux-caps,
+ case "$enable_linux_caps" in
+ 	yes|'')
+ 		AC_CHECK_HEADERS(linux/capability.h sys/capability.h)
++		AC_CHECK_LIB(cap, cap_set_proc)
+ 		AC_CHECK_FUNCS(capset)
+ 		;;
+ 	no)