[OE-core] [PATCH] iputils: Break libsysfs dependency
Andy Ross
andy.ross at windriver.com
Mon Aug 6 19:41:04 UTC 2012
iputils drops a /bin/arping with a runtime linkage against libsysfs in
/usr. Port Fedora 17 iputils-20071127-infiniband.patch, which inlines
access previously done by libsysfs.
Signed-off-by: Andy Ross <andy.ross at windriver.com>
---
.../files/arping-break-libsysfs-dependency.patch | 296 +++++++++++++++++++++
meta/recipes-extended/iputils/iputils_s20101006.bb | 5 +-
2 files changed, 299 insertions(+), 2 deletions(-)
create mode 100644 meta/recipes-extended/iputils/files/arping-break-libsysfs-dependency.patch
diff --git a/meta/recipes-extended/iputils/files/arping-break-libsysfs-dependency.patch b/meta/recipes-extended/iputils/files/arping-break-libsysfs-dependency.patch
new file mode 100644
index 0000000..37325ee
--- /dev/null
+++ b/meta/recipes-extended/iputils/files/arping-break-libsysfs-dependency.patch
@@ -0,0 +1,296 @@
+arping: Break libsysfs dependency
+
+Port Fedora 17's iputils-20071127-infiniband.patch, which inlines sysfs
+access previously done by libsysfs (which is in /usr, and thus not
+usable by /bin/arping).
+
+Upstream-Status: Inappropriate [not author]
+Signed-off-by: Andy Ross <andy.ross at windriver.com>
+---
+ Makefile | 2 +-
+ arping.c | 152 ++++++++++++++++++++++++++++++++++++++++++++------------------
+ 2 files changed, 109 insertions(+), 45 deletions(-)
+
+diff --git a/Makefile b/Makefile
+index d9a5ca5..943f048 100644
+--- a/Makefile
++++ b/Makefile
+@@ -27,7 +27,7 @@ all: $(TARGETS)
+
+
+ tftpd: tftpd.o tftpsubs.o
+-arping: arping.o -lsysfs
++arping: arping.o
+ ping: ping.o ping_common.o
+ ping6: ping6.o ping_common.o -lresolv -lcrypto
+ ping.o ping6.o ping_common.o: ping_common.h
+diff --git a/arping.c b/arping.c
+index 13484de..6379354 100644
+--- a/arping.c
++++ b/arping.c
+@@ -32,8 +32,6 @@
+ #include <netinet/in.h>
+ #include <arpa/inet.h>
+
+-#include <sysfs/libsysfs.h>
+-
+ #include "SNAPSHOT.h"
+
+ static void usage(void) __attribute__((noreturn));
+@@ -52,14 +50,22 @@ int unicasting;
+ int s;
+ int broadcast_only;
+
+-struct sockaddr_storage me;
+-struct sockaddr_storage he;
++struct sockaddr_ll *me=NULL;
++struct sockaddr_ll *he=NULL;
+
+ struct timeval start, last;
+
+ int sent, brd_sent;
+ int received, brd_recv, req_recv;
+
++#define SYSFS_MNT_PATH "/sys"
++#define SYSFS_CLASS "class"
++#define SYSFS_NET "net"
++#define SYSFS_BROADCAST "broadcast"
++#define SYSFS_PATH_ENV "SYSFS_PATH"
++#define SYSFS_PATH_LEN 256
++#define SOCKADDR_LEN (2 * sizeof(struct sockaddr_ll))
++
+ #define MS_TDIFF(tv1,tv2) ( ((tv1).tv_sec-(tv2).tv_sec)*1000 + \
+ ((tv1).tv_usec-(tv2).tv_usec)/1000 )
+
+@@ -166,6 +172,10 @@ void finish(void)
+ printf("\n");
+ fflush(stdout);
+ }
++
++ free(me);
++ free(he);
++
+ if (dad)
+ exit(!!received);
+ if (unsolicited)
+@@ -189,8 +199,7 @@ void catcher(void)
+ finish();
+
+ if ( count!=0 && (last.tv_sec==0 || MS_TDIFF(tv,last) > 500 ) ) {
+- send_pack(s, src, dst,
+- (struct sockaddr_ll *)&me, (struct sockaddr_ll *)&he);
++ send_pack(s, src, dst, me, he);
+ if (count >= 0)
+ count--;
+ if (count == 0 && unsolicited)
+@@ -239,7 +248,7 @@ int recv_pack(unsigned char *buf, int len, struct sockaddr_ll *FROM)
+ return 0;
+ if (ah->ar_pln != 4)
+ return 0;
+- if (ah->ar_hln != ((struct sockaddr_ll *)&me)->sll_halen)
++ if (ah->ar_hln != me->sll_halen)
+ return 0;
+ if (len < sizeof(*ah) + 2*(4 + ah->ar_hln))
+ return 0;
+@@ -250,7 +259,7 @@ int recv_pack(unsigned char *buf, int len, struct sockaddr_ll *FROM)
+ return 0;
+ if (src.s_addr != dst_ip.s_addr)
+ return 0;
+- if (memcmp(p+ah->ar_hln+4, ((struct sockaddr_ll *)&me)->sll_addr, ah->ar_hln))
++ if (memcmp(p+ah->ar_hln+4, me->sll_addr, ah->ar_hln))
+ return 0;
+ } else {
+ /* DAD packet was:
+@@ -268,7 +277,7 @@ int recv_pack(unsigned char *buf, int len, struct sockaddr_ll *FROM)
+ */
+ if (src_ip.s_addr != dst.s_addr)
+ return 0;
+- if (memcmp(p, ((struct sockaddr_ll *)&me)->sll_addr, ((struct sockaddr_ll *)&me)->sll_halen) == 0)
++ if (memcmp(p, me->sll_addr, me->sll_halen) == 0)
+ return 0;
+ if (src.s_addr && src.s_addr != dst_ip.s_addr)
+ return 0;
+@@ -284,7 +293,7 @@ int recv_pack(unsigned char *buf, int len, struct sockaddr_ll *FROM)
+ printf("for %s ", inet_ntoa(dst_ip));
+ s_printed = 1;
+ }
+- if (memcmp(p+ah->ar_hln+4, ((struct sockaddr_ll *)&me)->sll_addr, ah->ar_hln)) {
++ if (memcmp(p+ah->ar_hln+4, me->sll_addr, ah->ar_hln)) {
+ if (!s_printed)
+ printf("for ");
+ printf("[");
+@@ -310,40 +319,67 @@ int recv_pack(unsigned char *buf, int len, struct sockaddr_ll *FROM)
+ if (quit_on_reply)
+ finish();
+ if(!broadcast_only) {
+- memcpy(((struct sockaddr_ll *)&he)->sll_addr, p, ((struct sockaddr_ll *)&me)->sll_halen);
++ memcpy(he->sll_addr, p, me->sll_halen);
+ unicasting=1;
+ }
+ return 1;
+ }
+
+-void set_device_broadcast(char *device, unsigned char *ba, size_t balen)
++int get_sysfs_mnt_path(char *mnt_path, size_t len)
+ {
+- struct sysfs_class_device *dev;
+- struct sysfs_attribute *brdcast;
+- unsigned char *p;
+- int ch;
++ const char *sysfs_path_env;
++ int pth_len=0;
+
+- dev = sysfs_open_class_device("net", device);
+- if (!dev) {
+- perror("sysfs_open_class_device(net)");
+- exit(2);
+- }
++ if (len == 0 || mnt_path == NULL)
++ return -1;
+
+- brdcast = sysfs_get_classdev_attr(dev, "broadcast");
+- if (!brdcast) {
+- perror("sysfs_get_classdev_attr(broadcast)");
+- exit(2);
+- }
++ /* possible overrride of real mount path */
++ sysfs_path_env = getenv(SYSFS_PATH_ENV);
++ memset(mnt_path, 0, len);
++ strncpy(mnt_path,
++ sysfs_path_env != NULL ? sysfs_path_env : SYSFS_MNT_PATH,
++ len-1);
+
+- if (sysfs_read_attribute(brdcast)) {
+- perror("sysfs_read_attribute");
+- exit(2);
+- }
++ if ((pth_len = strlen(mnt_path)) > 0 && mnt_path[pth_len-1] == '/')
++ mnt_path[pth_len-1] = '\0';
++
++ return 0;
++}
++
++int make_sysfs_broadcast_path(char *broadcast_path, size_t len)
++{
++ char mnt_path[SYSFS_PATH_LEN];
++
++ if (get_sysfs_mnt_path(mnt_path, len) != 0)
++ return -1;
+
+- for (p = ba, ch = 0; p < ba + balen; p++, ch += 3)
+- *p = strtoul(brdcast->value + ch, NULL, 16);
++ snprintf(broadcast_path, len,
++ "%s/" SYSFS_CLASS "/" SYSFS_NET "/%s/" SYSFS_BROADCAST,
++ mnt_path, device);
+
+- return;
++ return 0;
++}
++
++char * read_sysfs_broadcast(char *brdcast_path)
++{
++ int fd;
++ int len_to_read;
++ char *brdcast = NULL;
++
++ if ((fd = open(brdcast_path, O_RDONLY)) > -1) {
++ len_to_read = lseek(fd, 0L, SEEK_END);
++ if ((brdcast = malloc(len_to_read+1)) != NULL) {
++ lseek(fd, 0L, SEEK_SET);
++ memset(brdcast, 0, len_to_read+1);
++ if (read(fd, brdcast, len_to_read) == -1) {
++ free(brdcast);
++ brdcast = NULL;
++ }
++ }
++ close(fd);
++ }
++
++ return brdcast;
+ }
+
+ int
+@@ -361,6 +397,17 @@ main(int argc, char **argv)
+ exit(-1);
+ }
+
++ me = malloc(SOCKADDR_LEN);
++ if (!me) {
++ fprintf(stderr, "arping: could not allocate memory\n");
++ exit(1);
++ }
++ he = malloc(SOCKADDR_LEN);
++ if (!he) {
++ fprintf(stderr, "arping: could not allocate memory\n");
++ exit(1);
++ }
++
+ while ((ch = getopt(argc, argv, "h?bfDUAqc:w:s:I:V")) != EOF) {
+ switch(ch) {
+ case 'b':
+@@ -509,34 +556,51 @@ main(int argc, char **argv)
+ close(probe_fd);
+ };
+
+- ((struct sockaddr_ll *)&me)->sll_family = AF_PACKET;
+- ((struct sockaddr_ll *)&me)->sll_ifindex = ifindex;
+- ((struct sockaddr_ll *)&me)->sll_protocol = htons(ETH_P_ARP);
+- if (bind(s, (struct sockaddr*)&me, sizeof(me)) == -1) {
++ me->sll_family = AF_PACKET;
++ me->sll_ifindex = ifindex;
++ me->sll_protocol = htons(ETH_P_ARP);
++ if (bind(s, (struct sockaddr*)me, SOCKADDR_LEN) == -1) {
+ perror("bind");
+ exit(2);
+ }
+
+ if (1) {
+- socklen_t alen = sizeof(me);
+- if (getsockname(s, (struct sockaddr*)&me, &alen) == -1) {
++ socklen_t alen = SOCKADDR_LEN;
++ if (getsockname(s, (struct sockaddr*)me, &alen) == -1) {
+ perror("getsockname");
+ exit(2);
+ }
+ }
+- if (((struct sockaddr_ll *)&me)->sll_halen == 0) {
++ if (me->sll_halen == 0) {
+ if (!quiet)
+ printf("Interface \"%s\" is not ARPable (no ll address)\n", device);
+ exit(dad?0:2);
+ }
+
+- he = me;
++ memcpy(he, me, SOCKADDR_LEN);
+
+ #if 1
+- set_device_broadcast(device, ((struct sockaddr_ll *)&he)->sll_addr,
+- ((struct sockaddr_ll *)&he)->sll_halen);
++ char brdcast_path[SYSFS_PATH_LEN];
++ char *brdcast_val=NULL;
++ char *next_ch;
++
++ if (make_sysfs_broadcast_path(brdcast_path, sizeof brdcast_path) != 0) {
++ perror("sysfs attribute broadcast");
++ exit(2);
++ }
++
++ if ((brdcast_val = read_sysfs_broadcast(brdcast_path)) == NULL) {
++ perror("sysfs read broadcast value");
++ exit(2);
++ }
++
++ for (ch=0; ch<he->sll_halen; ch++) {
++ he->sll_addr[ch] = strtol(brdcast_val + (ch*3), &next_ch, 16);
++ }
++
++ free(brdcast_val);
+ #else
+- memset(((struct sockaddr_ll *)&he)->sll_addr, -1, ((struct sockaddr_ll *)&he)->sll_halen);
++ memset(he->sll_addr, -1, he->sll_halen);
+ #endif
+
+ if (!quiet) {
+--
+1.7.10.4
+
diff --git a/meta/recipes-extended/iputils/iputils_s20101006.bb b/meta/recipes-extended/iputils/iputils_s20101006.bb
index 394ab58..62e2b5e 100644
--- a/meta/recipes-extended/iputils/iputils_s20101006.bb
+++ b/meta/recipes-extended/iputils/iputils_s20101006.bb
@@ -11,9 +11,9 @@ LIC_FILES_CHKSUM = "file://ping.c;beginline=1;endline=35;md5=f9ceb201733e9a6cf8f
file://arping.c;beginline=1;endline=10;md5=ada2a6d06acc90f943bddf40d15e0541 \
file://tftpd.c;beginline=1;endline=32;md5=28834bf8a91a5b8a92755dbee709ef96 "
-DEPENDS = "sysfsutils openssl docbook-utils-native sgmlspl-native"
+DEPENDS = "openssl docbook-utils-native sgmlspl-native"
-PR = "r4"
+PR = "r5"
SRC_URI = "http://www.skbuff.net/iputils/${BPN}-${PV}.tar.bz2 \
file://debian/fix-dead-host-ping-stats.diff \
@@ -22,6 +22,7 @@ SRC_URI = "http://www.skbuff.net/iputils/${BPN}-${PV}.tar.bz2 \
file://debian/targets.diff \
file://debian/fix-arping-timeouts.diff \
file://nsgmls-path-fix.patch \
+ file://arping-break-libsysfs-dependency.patch \
"
SRC_URI[md5sum] = "a36c25e9ec17e48be514dc0485e7376c"
--
1.7.11.2
More information about the Openembedded-core
mailing list