872 lines
20 KiB
C
872 lines
20 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <net/if_arp.h>
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#include <linux/socket.h>
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#include <netinet/in.h>
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#include <string.h>
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#include <errno.h>
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#include <time.h>
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#include <sys/uio.h>
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#include <linux/types.h>
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#include "libnetlinku.h"
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#include "commuapinl.h"
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#ifndef SOL_NETLINK
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#define SOL_NETLINK 270
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#endif
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#ifndef NETLINK_EXT_ACK
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#define NETLINK_EXT_ACK 11
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#endif
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#if 0
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struct nlumsg_list {
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struct list_head list;
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struct nlmsghdr *n;
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};
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#endif
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#define NETLINK_COMM_FAMILY_NUM (NETLINK_COMMMAX_MAX_FAMILY - NETLINK_COMMMAX_MIN_FAMILY -1)
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#define NETLINK_COMM_FAMILY_INDEX(family) (family - NETLINK_COMMMAX_MIN_FAMILY -1)
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struct upmnl_handle * gcommnl[NETLINK_COMM_FAMILY_NUM][COMMLIBNLGRP_MAX] = {0};/*包含单播和组播一起，组0是单播，1开始是组播*/
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int rcvbuf = 1024 * 1024;
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struct upmnl_handle * commnl_get_handle(int protocol,unsigned int group)
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{
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struct upmnl_handle * handle = NULL;
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handle = gcommnl[NETLINK_COMM_FAMILY_INDEX(protocol)][group];
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//printf("get handle proto %d,group%d,handle = %p.\r\n",NETLINK_COMM_FAMILY_INDEX(protocol),group,handle);
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return handle;
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}
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void commnl_del_handle(int protocol,unsigned int group)
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{
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gcommnl[NETLINK_COMM_FAMILY_INDEX(protocol)][group] = NULL;
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return;
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}
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int commnl_add_handle(struct upmnl_handle * handle,int protocol,unsigned int group)
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{
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if(commnl_get_handle(protocol,group) != NULL)
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{
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printf("handel already exist,proto:%d,group%d.\r\n",protocol,group);
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return -1;
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}
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//printf("add handle %p proto %d,group%d\r\n",handle,NETLINK_COMM_FAMILY_INDEX(protocol),group);
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gcommnl[NETLINK_COMM_FAMILY_INDEX(protocol)][group]= handle;
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return 0;
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}
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void printf_mem(unsigned char * p,int len)
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{
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int num = 0;
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for(num = 0; num<len; num++)
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{
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printf("%02x ",*(p+num));
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if(((num+1)%16 == 0) || ((num+1 ) == len))
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{
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printf("\r\n");
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}
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}
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return;
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}
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void test_handle_add_get()
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{
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struct upmnl_handle handle ={
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.proto = NETLINK_COMMCFG};
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struct upmnl_handle *phandle =NULL;
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int ret = -1;
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/*test*/
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ret = commnl_add_handle(&handle,NETLINK_COMMCFG,0);
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if(ret < 0)
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printf("commnl_add_handle failed.\r\n");
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phandle = commnl_get_handle(NETLINK_COMMCFG,0);
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if(phandle == NULL)
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printf("commnl_get_handle faild\r\n.");
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commnl_del_handle(NETLINK_COMMCFG,0);
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phandle = NULL;
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phandle = commnl_get_handle(NETLINK_COMMCFG,0);
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if(phandle == NULL)
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printf("commnl_get_handle faild\r\n.");
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return ;
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}
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int commnl_addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data,
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int alen)
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{
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int len = RTA_LENGTH(alen);
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struct rtattr *rta;
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if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) {
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fprintf(stderr,
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"addattr_l ERROR: message exceeded bound of %d\n",
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maxlen);
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return -1;
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}
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rta = NLMSG_TAIL(n);
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rta->rta_type = type;
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rta->rta_len = len;
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if (alen)
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memcpy(RTA_DATA(rta), data, alen);
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n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
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return 0;
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}
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int commnl_addattr(struct nlmsghdr *n, int maxlen, int type)
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{
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return commnl_addattr_l(n, maxlen, type, NULL, 0);
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}
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int commnl_addattr8(struct nlmsghdr *n, int maxlen, int type, __u8 data)
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{
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return commnl_addattr_l(n, maxlen, type, &data, sizeof(__u8));
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}
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int commnl_addattr16(struct nlmsghdr *n, int maxlen, int type, __u16 data)
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{
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return commnl_addattr_l(n, maxlen, type, &data, sizeof(__u16));
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}
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int commnl_addattr32(struct nlmsghdr *n, int maxlen, int type, __u32 data)
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{
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return commnl_addattr_l(n, maxlen, type, &data, sizeof(__u32));
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}
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int commnl_addattr64(struct nlmsghdr *n, int maxlen, int type, __u64 data)
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{
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return commnl_addattr_l(n, maxlen, type, &data, sizeof(__u64));
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}
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int commnl_addattrstrz(struct nlmsghdr *n, int maxlen, int type, const char *str)
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{
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return commnl_addattr_l(n, maxlen, type, str, strlen(str)+1);
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}
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int commnl_open_byproto( unsigned int subscriptions,int protocol)
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{
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socklen_t addr_len;
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int sndbuf = 32768;
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int one = 1;
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struct upmnl_handle * upmh = NULL;
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struct timeval timeout={1,10000};//10ms
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printf("commnl_open_byproto begin:protocol=%d,subscriptions=%d\r\n",protocol,subscriptions);
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upmh = calloc(1,sizeof(struct upmnl_handle) );
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if(upmh == NULL)
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{
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printf("commnl_new_handle calloc mem error protocol:%d,group:%d.\r\n",protocol,subscriptions);
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return -1;
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}
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upmh->local.nl_family = AF_NETLINK;
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upmh->local.nl_groups = subscriptions;
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upmh->local.nl_pid = getpid();
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upmh->proto = protocol;
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upmh->fd = socket(AF_NETLINK, SOCK_RAW, protocol);
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if (upmh->fd < 0) {
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perror("Cannot open netlink socket");
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goto ERR;
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}
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if (setsockopt(upmh->fd, SOL_SOCKET, SO_SNDBUF,
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&sndbuf, sizeof(sndbuf)) < 0) {
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perror("SO_SNDBUF");
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goto ERR;
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}
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if (setsockopt(upmh->fd, SOL_SOCKET, SO_RCVBUF,
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&rcvbuf, sizeof(rcvbuf)) < 0) {
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perror("SO_RCVBUF");
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goto ERR;
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}
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if (setsockopt(upmh->fd, SOL_SOCKET, SO_RCVTIMEO,
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&timeout, sizeof(timeout)) < 0) {
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perror("SO_RCVTIMEO");
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goto ERR;
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}
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/* Older kernels may no support extended ACK reporting */
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if (setsockopt(upmh->fd, SOL_NETLINK, NETLINK_EXT_ACK,
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&one, sizeof(one))){
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perror("NETLINK_EXT_ACK");
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goto ERR;
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}
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memset(&upmh->local, 0, sizeof(upmh->local));
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upmh->local.nl_family = AF_NETLINK;
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upmh->local.nl_pid = getpid();
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upmh->local.nl_groups = subscriptions;
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if (bind(upmh->fd, (struct sockaddr *)&(upmh->local),
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sizeof(upmh->local)) < 0) {
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perror("Cannot bind netlink socket");
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//printf("Cannot bind netlink socket\r\n");
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goto ERR;
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}
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addr_len = sizeof(upmh->local);
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if (getsockname(upmh->fd, (struct sockaddr *)&upmh->local,
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&addr_len) < 0) {
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perror("Cannot getsockname");
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goto ERR;
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}
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if (addr_len != sizeof(upmh->local)) {
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fprintf(stderr, "Wrong address length %d\n", addr_len);
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goto ERR;
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}
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if (upmh->local.nl_family != AF_NETLINK) {
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fprintf(stderr, "Wrong address family %d\n",
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upmh->local.nl_family);
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goto ERR;
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}
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upmh->seq = time(NULL);
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commnl_add_handle(upmh, protocol, subscriptions);
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printf("commnl_open_byproto succes.\r\n");
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return 0;
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ERR:
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if (upmh->fd >= 0) {
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close(upmh->fd);
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upmh->fd = -1;
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}
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if(NULL != upmh){
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free(upmh);
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}
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commnl_del_handle(protocol, subscriptions);
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return -1;
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}
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void commnl_close( unsigned int subscriptions,int protocol)
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{
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struct upmnl_handle *upmh = commnl_get_handle(protocol,subscriptions);
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if (upmh->fd >= 0) {
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close(upmh->fd);
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upmh->fd = -1;
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}
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commnl_del_handle(upmh->proto, upmh->local.nl_groups);
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free(upmh);
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return;
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}
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int commcfgnl_open()
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{
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return commnl_open_byproto(0, NETLINK_COMMCFG);
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}
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void commcfgnl_close()
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{
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commnl_close(0,NETLINK_COMMCFG);
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return;
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}
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int pdelivnl_open(unsigned int group)
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{
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return commnl_open_byproto(group, NETLINK_PDELIVERY);
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}
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void pdelivnl_close(unsigned int group)
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{
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commnl_close(group,NETLINK_PDELIVERY);
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return;
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}
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int commnl_send(struct upmnl_handle *nl, struct nlmsghdr *n)
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{
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int ret = -1;
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//if(n->nlmsg_flags |NLM_F_ACK)
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ret = send(nl->fd, n, n->nlmsg_len, 0);
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}
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int commcfg_send(struct nlmsghdr *n)
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{
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struct upmnl_handle *nl = NULL;
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nl = commnl_get_handle(NETLINK_COMMCFG,0);
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if(nl == NULL)
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{
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printf("err:pdeliv_talk faid,pdeliv netlink has not open.\r\n");
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return -1;
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}
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return(commnl_send(nl,n));
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}
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int pdelivnl_send(int group,struct nlmsghdr *n)
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{
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struct upmnl_handle *nl = NULL;
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nl = commnl_get_handle(NETLINK_PDELIVERY,group);
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if(nl == NULL)
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{
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printf("err:pdeliv_talk faid,pdeliv netlink has not open.\r\n");
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return -1;
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}
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return(commnl_send(nl,n));
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}
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static int __commnl_recvmsg(int fd, struct msghdr *msg, int flags)
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{
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int len = 0;
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unsigned int num = COMMNL_TALKRCV_TIMEOUT;/*timeout*/
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do {
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len = recvmsg(fd, msg, flags);
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#if 1
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num --;
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if(num ==0)
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break;
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#endif
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printf("__rtnl_recvmsg return num %d.\r\n",num);
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} while (len < 0 && (errno == EINTR || errno == EAGAIN));/*超时*/
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if (len < 0) {
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fprintf(stderr, "netlink receive error %s (%d)\n",
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strerror(errno), errno);
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return -errno;
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}
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if (len == 0) {
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fprintf(stderr, "EOF on netlink\n");
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return -ENODATA;
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}
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return len;
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}
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static int commnl_recvmsg(int fd, struct msghdr *msg, char **answer)
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{
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struct iovec *iov = msg->msg_iov;
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char *buf;
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int len;
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struct nlmsghdr *recv_hdr;
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iov->iov_base = NULL;
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iov->iov_len = 0;
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len = __commnl_recvmsg(fd, msg, MSG_PEEK | MSG_TRUNC);
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if (len < 0)
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return len;
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if (len < 32768)
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len = 32768;
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buf = malloc(len);
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if (!buf) {
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fprintf(stderr, "malloc error: not enough buffer\n");
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return -ENOMEM;
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}
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iov->iov_base = buf;
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iov->iov_len = len;
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len = __commnl_recvmsg(fd, msg, 0);
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if (len < 0) {
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free(buf);
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return len;
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}
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if (answer)
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*answer = buf;
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else
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free(buf);
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recv_hdr = (struct nlmsghdr *)(*answer);
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return len;
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}
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static int __commnl_talk_iov(struct upmnl_handle *rtnl, struct iovec *iov,
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size_t iovlen, struct nlmsghdr **answer,
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bool show_rtnl_err, nl_ext_ack_fn_t errfn)
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{
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struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
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struct iovec riov;
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struct msghdr msg = {
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.msg_name = &nladdr,
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.msg_namelen = sizeof(nladdr),
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.msg_iov = iov,
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.msg_iovlen = iovlen,
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};
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unsigned int seq = 0;
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struct nlmsghdr *h;
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int i, status;
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char *buf;
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for (i = 0; i < iovlen; i++) {
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h = iov[i].iov_base;
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h->nlmsg_seq = seq = ++rtnl->seq;
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if (answer == NULL)
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h->nlmsg_flags |= NLM_F_ACK;
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}
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status = sendmsg(rtnl->fd, &msg, 0);
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if (status < 0) {
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perror("Cannot talk to rtnetlink");
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return -1;
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}
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else{
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printf("__commnl_talk_iov send msg sucess.\r\n");
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}
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/* change msg to use the response iov */
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msg.msg_iov = &riov;
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msg.msg_iovlen = 1;
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i = 0;
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while (1) {
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next:
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printf("talk recvmsg-ing...\r\n");
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status = commnl_recvmsg(rtnl->fd, &msg, &buf);
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++i;
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if (status < 0)
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{
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printf("__commnl_talk_iov: commnl_recvmsg return error=%d...\r\n",status);
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return status;
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}
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if (msg.msg_namelen != sizeof(nladdr)) {
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fprintf(stderr,
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"sender address length == %d\n",
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msg.msg_namelen);
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exit(1);
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}
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for (h = (struct nlmsghdr *)buf; status >= sizeof(*h); ) {
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int len = h->nlmsg_len;
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int l = len - sizeof(*h);
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if (l < 0 || len > status) {
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if (msg.msg_flags & MSG_TRUNC) {
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fprintf(stderr, "Truncated message\n");
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free(buf);
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return -1;
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}
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fprintf(stderr,
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"!!!malformed message: len=%d\n",
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len);
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exit(1);
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}
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/*单播消息，pid必须正确*/
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if (nladdr.nl_pid != 0 ||
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h->nlmsg_pid != rtnl->local.nl_pid ||
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h->nlmsg_seq > seq || h->nlmsg_seq < seq - iovlen) {
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/* Don't forget to skip that message. */
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status -= NLMSG_ALIGN(len);
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h = (struct nlmsghdr *)((char *)h + NLMSG_ALIGN(len));
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printf("__commnl_talk_iov recv a msg,but not to me:h->nlmsg_pid=%d,local_pid=%d,h->nlmsg_seq=%d,seq=%d.\r\n",
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h->nlmsg_pid,rtnl->local.nl_pid,h->nlmsg_seq,seq);
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continue;
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}
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if (h->nlmsg_type == NLMSG_ERROR) {
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printf("nltalk recv a ack msg.\r\n");
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struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(h);
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int error = err->error;
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if (l < sizeof(struct nlmsgerr)) {
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fprintf(stderr, "ERROR truncated\n");
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free(buf);
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return -1;
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}
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if (!error) {
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/* check messages from kernel */
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//nl_dump_ext_ack(h, errfn);
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} else {
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//errno = -error;
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//if (rtnl->proto != NETLINK_SOCK_DIAG && show_rtnl_err)
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//rtnl_talk_error(h, err, errfn);
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}
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if (answer)
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*answer = (struct nlmsghdr *)buf;
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else
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free(buf);
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if (i < iovlen)
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goto next;
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return error ? -i : 0;
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}
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if (answer) {
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*answer = (struct nlmsghdr *)buf;
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return 0;/*find the first one，give it to user.*/
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}
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fprintf(stderr, "Unexpected reply!!!\n");
|
||
|
||
status -= NLMSG_ALIGN(len);
|
||
h = (struct nlmsghdr *)((char *)h + NLMSG_ALIGN(len));
|
||
printf("goto next nlmsghdr");
|
||
}
|
||
free(buf);
|
||
|
||
if (msg.msg_flags & MSG_TRUNC) {
|
||
fprintf(stderr, "Message truncated\n");
|
||
continue;
|
||
}
|
||
|
||
if (status) {
|
||
fprintf(stderr, "!!!Remnant of size %d\n", status);
|
||
exit(1);
|
||
}
|
||
}
|
||
}
|
||
|
||
static int __commnl_talk(struct upmnl_handle *nl, struct nlmsghdr *n,
|
||
struct nlmsghdr **answer,
|
||
bool show_rtnl_err, nl_ext_ack_fn_t errfn)
|
||
{
|
||
struct iovec iov = {
|
||
.iov_base = n,
|
||
.iov_len = n->nlmsg_len
|
||
};
|
||
|
||
return __commnl_talk_iov(nl, &iov, 1, answer, show_rtnl_err, errfn);
|
||
}
|
||
|
||
|
||
|
||
int commnl_talk(struct upmnl_handle *nl, struct nlmsghdr *n,
|
||
struct nlmsghdr **answer)
|
||
{
|
||
return __commnl_talk(nl, n, answer, true, NULL);
|
||
}
|
||
|
||
int pdeliv_talk(int group,struct nlmsghdr *n, struct nlmsghdr **answer)
|
||
{
|
||
struct upmnl_handle *nl = NULL;
|
||
|
||
nl = commnl_get_handle(NETLINK_PDELIVERY,group);
|
||
if(nl == NULL)
|
||
{
|
||
printf("pdeliv_talk faid,pdeliv netlink has not open.\r\n");
|
||
return -1;
|
||
}
|
||
|
||
printf("pdeliv_talk send msg type=%d,len=%d.\r\n",n->nlmsg_type,n->nlmsg_len);
|
||
return(commnl_talk(nl,n,answer));
|
||
}
|
||
|
||
int commcfg_talk(struct nlmsghdr *n, struct nlmsghdr **answer)
|
||
{
|
||
struct upmnl_handle *nl = NULL;
|
||
|
||
nl = commnl_get_handle(NETLINK_COMMCFG,0);
|
||
if(nl == NULL)
|
||
{
|
||
printf("commcfg_talk faid,commcfg netlink has not open.\r\n");
|
||
return -1;
|
||
}
|
||
|
||
printf("commcfg_talk send msg type=%d,len=%d.\r\n",n->nlmsg_type,n->nlmsg_len);
|
||
return(commnl_talk(nl,n,answer));
|
||
}
|
||
|
||
|
||
int pdelivnl_listen(int group,
|
||
pdelivnl_listen_filter_t handler,
|
||
void *jarg)
|
||
{
|
||
struct upmnl_handle *nl = NULL;
|
||
|
||
printf("pdelivnl_listen:.\r\n");
|
||
|
||
nl = commnl_get_handle(NETLINK_PDELIVERY,group);
|
||
if(nl == NULL)
|
||
{
|
||
printf("pdelivnl_listen faid,pdeliv netlink has not open.\r\n");
|
||
return -1;
|
||
}
|
||
|
||
return(conmnl_listen(nl,handler,jarg));
|
||
}
|
||
|
||
int conmnl_listen(struct upmnl_handle *nl,
|
||
pdelivnl_listen_filter_t handler,
|
||
void *jarg)
|
||
{
|
||
int status;
|
||
struct nlmsghdr *h;
|
||
struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
|
||
struct iovec iov;
|
||
struct msghdr msg = {
|
||
.msg_name = &nladdr,
|
||
.msg_namelen = sizeof(nladdr),
|
||
.msg_iov = &iov,
|
||
.msg_iovlen = 1,
|
||
};
|
||
char buf[16384];
|
||
char cmsgbuf[BUFSIZ];
|
||
|
||
//printf("conmnl_listen begin.\r\n");
|
||
|
||
#if 0
|
||
if (nl->flags & RTNL_HANDLE_F_LISTEN_ALL_NSID) {
|
||
msg.msg_control = &cmsgbuf;
|
||
msg.msg_controllen = sizeof(cmsgbuf);
|
||
}
|
||
#endif
|
||
|
||
iov.iov_base = buf;
|
||
while (1) {
|
||
struct pdelivnl_ctrl_data ctrl;
|
||
struct cmsghdr *cmsg;
|
||
|
||
//printf("pdelivnl_listen recvmsg....\r\n");
|
||
iov.iov_len = sizeof(buf);
|
||
//status = recvmsg(nl->fd, &msg, MSG_WAITALL);
|
||
if(nl->fd <= 0)
|
||
{
|
||
printf("conmnl_listen fd is closed,fd = %d,exist listen.\r\rn",nl->fd);
|
||
return 0;
|
||
}
|
||
|
||
status = recvmsg(nl->fd, &msg, MSG_WAITFORONE);
|
||
|
||
if (status < 0) {
|
||
if (errno == EINTR || errno == EAGAIN)/*超时*/
|
||
continue;
|
||
fprintf(stderr, "netlink receive error: %s (%d)\n",
|
||
strerror(errno), errno);
|
||
if (errno == ENOBUFS)
|
||
continue;
|
||
return -1;
|
||
}
|
||
if (status == 0) {
|
||
fprintf(stderr, "EOF on netlink\n");
|
||
return -1;
|
||
}
|
||
if (msg.msg_namelen != sizeof(nladdr)) {
|
||
fprintf(stderr,
|
||
"Sender address length == %d\n",
|
||
msg.msg_namelen);
|
||
exit(1);
|
||
}
|
||
|
||
#if 0
|
||
if (nl->flags & RTNL_HANDLE_F_LISTEN_ALL_NSID) {
|
||
memset(&ctrl, 0, sizeof(ctrl));
|
||
ctrl.nsid = -1;
|
||
for (cmsg = CMSG_FIRSTHDR(&msg); cmsg;
|
||
cmsg = CMSG_NXTHDR(&msg, cmsg))
|
||
if (cmsg->cmsg_level == SOL_NETLINK &&
|
||
cmsg->cmsg_type == NETLINK_LISTEN_ALL_NSID &&
|
||
cmsg->cmsg_len == CMSG_LEN(sizeof(int))) {
|
||
int *data = (int *)CMSG_DATA(cmsg);
|
||
|
||
ctrl.nsid = *data;
|
||
}
|
||
}
|
||
#endif
|
||
|
||
#if 1
|
||
|
||
//printf("pdelivnl_listen prase msg:\r\n");
|
||
for (h = (struct nlmsghdr *)buf; status >= sizeof(*h); ) {
|
||
int err;
|
||
int len = h->nlmsg_len;
|
||
int l = len - sizeof(*h);
|
||
|
||
if (l < 0 || len > status) {
|
||
//if (msg.msg_flags & MSG_TRUNC) {
|
||
//fprintf(stderr, "Truncated message\n");
|
||
//return -1;
|
||
//}
|
||
fprintf(stderr,
|
||
"!!!malformed message: len=%d\n",
|
||
len);
|
||
exit(1);
|
||
}
|
||
|
||
err = handler(&ctrl, h, jarg);
|
||
if (err < 0)
|
||
return err;
|
||
|
||
status -= NLMSG_ALIGN(len);
|
||
h = (struct nlmsghdr *)((char *)h + NLMSG_ALIGN(len));
|
||
}
|
||
#endif
|
||
|
||
//if (msg.msg_flags & MSG_TRUNC) {
|
||
//fprintf(stderr, "Message truncated\n");
|
||
//continue;
|
||
//}
|
||
if (status) {
|
||
fprintf(stderr, "!!!Remnant of size %d\n", status);
|
||
exit(1);
|
||
}
|
||
}
|
||
}
|
||
|
||
#if 0
|
||
int upnl_dump_type(struct upmnl_handle *upmh, unsigned int type)
|
||
{
|
||
struct {
|
||
struct nlmsghdr nlh;
|
||
//struct rtgenmsg g;
|
||
} req;
|
||
struct sockaddr_nl nladdr;
|
||
|
||
memset(&nladdr, 0, sizeof(nladdr));
|
||
memset(&req, 0, sizeof(req));
|
||
nladdr.nl_family = AF_NETLINK;
|
||
|
||
req.nlh.nlmsg_len = sizeof(req);
|
||
req.nlh.nlmsg_type = type;
|
||
req.nlh.nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST;
|
||
req.nlh.nlmsg_pid = 0;
|
||
//req.nlh.nlmsg_seq = upmh->rtnl_dump = ++(upmh->rtnl_seq);
|
||
req.nlh.nlmsg_seq = 1;
|
||
//req.g.rtgen_family = AF_INET;
|
||
|
||
return sendto(upmh->fd, &req, sizeof(req), 0,
|
||
(struct sockaddr*)&nladdr, sizeof(nladdr));
|
||
}
|
||
#endif
|
||
|
||
int pdeliv_main(pdelivnl_listen_filter_t process_pkt)
|
||
{
|
||
int ret = -1;
|
||
|
||
printf("pdeliv_main begin:\r\n");
|
||
|
||
/*创建通道*/
|
||
ret = pdelivnl_open(PDNLGRP_ALLRAW);
|
||
if(ret < 0)
|
||
{
|
||
printf("pdelivnl_open fail,exit.\r\n");
|
||
return -1;
|
||
}
|
||
|
||
/*接收报文*/
|
||
pdelivnl_listen(PDNLGRP_ALLRAW,process_pkt,NULL);
|
||
|
||
|
||
/*关闭netlink通道*/
|
||
pdelivnl_close(PDNLGRP_ALLRAW);
|
||
|
||
printf("pdeliv_main exit!\r\n");
|
||
return 0;
|
||
}
|
||
|
||
|
||
|
||
void nl_debugfs(struct nlmsghdr *n)
|
||
{
|
||
struct netlink_debugfs *debugfs_total =NULL;
|
||
struct netlink_debugfs *debugfs_msgtype =NULL;
|
||
int msg_len = 0;
|
||
|
||
debugfs_total = (struct netlink_debugfs *)NLMSG_DATA(n);/*msg data*/
|
||
msg_len = (n)->nlmsg_len - NLMSG_HDRLEN; /*msg_len*/
|
||
|
||
debugfs_msgtype = debugfs_total+1;
|
||
|
||
printf("netlink total msg stats:\r\n");
|
||
printf(" rev_total = %d\n",debugfs_total->rev_total);
|
||
printf(" rev_cb_sucess = %d\n",debugfs_total->rev_cb_sucess);
|
||
printf(" rev_cb_fail = %d\n",debugfs_total->rev_cb_fail);
|
||
printf(" rev_drop_total = %d\n",debugfs_total->rev_drop_total);
|
||
printf(" rev_drop_nodoit = %d\n",debugfs_total->rev_drop_nodoit);
|
||
printf(" send_succ = %d\n",debugfs_total->send_succ);
|
||
printf(" send_fail = %d\n",debugfs_total->send_fail);
|
||
|
||
printf("netlink msg stats:\r\n");
|
||
printf(" rev_total = %d\n",debugfs_msgtype->rev_total);
|
||
printf(" rev_cb_sucess = %d\n",debugfs_msgtype->rev_cb_sucess);
|
||
printf(" rev_cb_fail = %d\n",debugfs_msgtype->rev_cb_fail);
|
||
printf(" rev_drop_total = %d\n",debugfs_msgtype->rev_drop_total);
|
||
printf(" rev_drop_nodoit = %d\n",debugfs_msgtype->rev_drop_nodoit);
|
||
printf(" send_succ = %d\n",debugfs_msgtype->send_succ);
|
||
printf(" send_fail = %d\n",debugfs_msgtype->send_fail);
|
||
|
||
return;
|
||
}
|
||
|
||
|
||
void nl_debugfs_extack(struct nlmsghdr *n)
|
||
{
|
||
//struct netlink_debugfs *debugfs_statis =NULL;
|
||
char * rcv_cookies = NULL;
|
||
int msg_len = 0;
|
||
struct nlmsgerr *errmsg = NULL;
|
||
struct rtattr * cookies = NULL;
|
||
int cookies_len = 0;
|
||
char * ptr;
|
||
|
||
printf("nl_debugfs_extack said:\r\nmsgtype=%d,msglen=%d\r\n",n->nlmsg_type,n->nlmsg_len);
|
||
|
||
errmsg = (struct nlmsgerr *)NLMSG_DATA(n);/*msg data*/
|
||
msg_len = (n)->nlmsg_len - NLMSG_HDRLEN; /*msg_len*/
|
||
|
||
printf("ack result=%d,ack msgtype:%d\r\n",errmsg->error,errmsg->msg.nlmsg_type);
|
||
|
||
if(errmsg->error == 0)/*ack result is SUCESS*/
|
||
{
|
||
ptr = (char * )errmsg + sizeof(struct nlmsgerr);
|
||
cookies = (struct rtattr *)ptr;
|
||
//if(NLMSGERR_ATTR_COOKIE == cookies->rta_type)
|
||
{
|
||
cookies_len = cookies->rta_len;
|
||
|
||
rcv_cookies = RTA_DATA(cookies);
|
||
printf("nl_debugfs_extack rcv cookies:%s.\r\n",rcv_cookies);
|
||
|
||
}
|
||
|
||
|
||
}
|
||
else{
|
||
printf("nl_debugfs kernel said fail,error =%d.\r\n",errmsg->error);
|
||
}
|
||
|
||
|
||
return;
|
||
}
|
||
|