Tools: hv: Gather ipv[4,6] gateway information (4a52c4af) · Commits · 戴 / test

tools/hv/hv_kvp_daemon.c

+68 −0

Original line number	Diff line number	Diff line
		@@ -491,6 +491,68 @@ done:
		return;
		}

		static void kvp_process_ipconfig_file(char *cmd,
		char *config_buf, int len,
		int element_size, int offset)
		{
		char buf[256];
		char *p;
		char *x;
		FILE *file;

		/*
		* First execute the command.
		*/
		file = popen(cmd, "r");
		if (file == NULL)
		return;

		if (offset == 0)
		memset(config_buf, 0, len);
		while ((p = fgets(buf, sizeof(buf), file)) != NULL) {
		if ((len - strlen(config_buf)) < (element_size + 1))
		break;

		x = strchr(p, '\n');
		*x = '\0';
		strcat(config_buf, p);
		strcat(config_buf, ";");
		}
		pclose(file);
		}

		static void kvp_get_ipconfig_info(char *if_name,
		struct hv_kvp_ipaddr_value *buffer)
		{
		char cmd[512];

		/*
		* Get the address of default gateway (ipv4).
		*/
		sprintf(cmd, "%s %s", "ip route show dev", if_name);
		strcat(cmd, " \| awk '/default/ {print $3 }'");

		/*
		* Execute the command to gather gateway info.
		*/
		kvp_process_ipconfig_file(cmd, (char *)buffer->gate_way,
		(MAX_GATEWAY_SIZE * 2), INET_ADDRSTRLEN, 0);

		/*
		* Get the address of default gateway (ipv6).
		*/
		sprintf(cmd, "%s %s", "ip -f inet6 route show dev", if_name);
		strcat(cmd, " \| awk '/default/ {print $3 }'");

		/*
		* Execute the command to gather gateway info (ipv6).
		*/
		kvp_process_ipconfig_file(cmd, (char *)buffer->gate_way,
		(MAX_GATEWAY_SIZE * 2), INET6_ADDRSTRLEN, 1);

		}


		static unsigned int hweight32(unsigned int *w)
		{
		unsigned int res = w - ((w >> 1) & 0x55555555);
		@@ -650,6 +712,12 @@ kvp_get_ip_address(int family, char *if_name, int op,
		strcat((char *)ip_buffer->sub_net, ";");
		sn_offset += strlen(sn_str) + 1;
		}

		/*
		* Collect other ip related configuration info.
		*/

		kvp_get_ipconfig_info(if_name, ip_buffer);
		}

		gather_ipaddr:

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