108 lines
3.1 KiB
Diff
108 lines
3.1 KiB
Diff
diff -up iputils-s20101006/Makefile.drop_caps iputils-s20101006/Makefile
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--- iputils-s20101006/Makefile.drop_caps 2010-11-08 14:49:53.334577997 +0100
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+++ iputils-s20101006/Makefile 2010-11-08 14:49:53.342599113 +0100
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@@ -13,7 +13,7 @@ ADDLIB=
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CC=gcc
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# What a pity, all new gccs are buggy and -Werror does not work. Sigh.
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CCOPT=-Wstrict-prototypes -fno-strict-aliasing -Werror
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-DEFINES += -D_GNU_SOURCE
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+DEFINES += -D_GNU_SOURCE -DHAVE_CAPABILITIES
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CFLAGS += $(RPM_OPT_FLAGS) $(CCOPT) $(GLIBCFIX) $(DEFINES)
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IPV4_TARGETS=tracepath ping clockdiff rdisc arping tftpd rarpd
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@@ -30,10 +30,10 @@ tftpd: tftpd.o tftpsubs.o
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arping: arping.o
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ping: ping.o ping_common.o
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- $(CC) $(CFLAGS) $(LDFLAGS) ping.o ping_common.o -lidn -o ping
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+ $(CC) $(CFLAGS) $(LDFLAGS) ping.o ping_common.o -lidn -lcap -o ping
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ping6: ping6.o ping_common.o
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- $(CC) $(CFLAGS) $(LDFLAGS) ping6.o ping_common.o -lresolv -lcrypto -o ping6
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+ $(CC) $(CFLAGS) $(LDFLAGS) ping6.o ping_common.o -lresolv -lcrypto -lcap -o ping6
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ping.o ping6.o ping_common.o: ping_common.h in6_flowlabel.h
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tftpd.o tftpsubs.o: tftp.h
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diff -up iputils-s20101006/ping6.c.drop_caps iputils-s20101006/ping6.c
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--- iputils-s20101006/ping6.c.drop_caps 2010-11-08 14:49:53.338587611 +0100
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+++ iputils-s20101006/ping6.c 2010-12-15 16:06:16.949794002 +0100
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@@ -73,6 +73,10 @@ char copyright[] =
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#include <netinet/icmp6.h>
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#include <resolv.h>
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+#ifdef HAVE_CAPABILITIES
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+#include <sys/capability.h>
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+#endif
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+
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#include "ping6_niquery.h"
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#include "in6_flowlabel.h"
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@@ -533,6 +537,9 @@ int main(int argc, char *argv[])
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int csum_offset, sz_opt;
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#endif
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static uint32_t scope_id = 0;
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+#ifdef HAVE_CAPABILITIES
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+ cap_t caps;
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+#endif
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icmp_sock = socket(AF_INET6, SOCK_RAW, IPPROTO_ICMPV6);
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socket_errno = errno;
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@@ -543,6 +550,16 @@ int main(int argc, char *argv[])
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exit(-1);
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}
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+#ifdef HAVE_CAPABILITIES
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+ /* drop all capabilities unconditionally so even root isn't special anymore */
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+ caps = cap_init();
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+ if (cap_set_proc(caps) < 0) {
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+ perror("ping: cap_set_proc");
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+ exit(-1);
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+ }
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+ cap_free(caps);
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+#endif
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+
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source.sin6_family = AF_INET6;
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memset(&firsthop, 0, sizeof(firsthop));
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firsthop.sin6_family = AF_INET6;
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diff -up iputils-s20101006/ping.c.drop_caps iputils-s20101006/ping.c
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--- iputils-s20101006/ping.c.drop_caps 2010-11-08 14:49:53.314577272 +0100
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+++ iputils-s20101006/ping.c 2010-12-15 16:05:52.113794002 +0100
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@@ -66,6 +66,10 @@ char copyright[] =
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#include <netinet/ip.h>
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#include <netinet/ip_icmp.h>
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+#ifdef HAVE_CAPABILITIES
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+#include <sys/capability.h>
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+#endif
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+
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#ifndef ICMP_FILTER
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#define ICMP_FILTER 1
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struct icmp_filter {
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@@ -125,6 +129,9 @@ main(int argc, char **argv)
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u_char *packet;
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char *target, hnamebuf[MAX_HOSTNAMELEN];
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char rspace[3 + 4 * NROUTES + 1]; /* record route space */
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+#ifdef HAVE_CAPABILITIES
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+ cap_t caps;
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+#endif
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char *idn;
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int rc = 0;
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@@ -139,6 +146,16 @@ main(int argc, char **argv)
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exit(-1);
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}
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+#ifdef HAVE_CAPABILITIES
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+ /* drop all capabilities unconditionally so even root isn't special anymore */
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+ caps = cap_init();
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+ if (cap_set_proc(caps) < 0) {
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+ perror("ping: cap_set_proc");
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+ exit(-1);
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+ }
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+ cap_free(caps);
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+#endif
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+
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source.sin_family = AF_INET;
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preload = 1;
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