[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit

Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/busybox/src/networking/nameif.c b/ap/app/busybox/src/networking/nameif.c
new file mode 100644
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--- /dev/null
+++ b/ap/app/busybox/src/networking/nameif.c
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+/* vi: set sw=4 ts=4: */
+/*
+ * nameif.c - Naming Interfaces based on MAC address for busybox.
+ *
+ * Written 2000 by Andi Kleen.
+ * Busybox port 2002 by Nick Fedchik <nick@fedchik.org.ua>
+ *			Glenn McGrath
+ * Extended matching support 2008 by Nico Erfurth <masta@perlgolf.de>
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
+ */
+
+//config:config NAMEIF
+//config:	bool "nameif"
+//config:	default y
+//config:	select PLATFORM_LINUX
+//config:	select FEATURE_SYSLOG
+//config:	help
+//config:	  nameif is used to rename network interface by its MAC address.
+//config:	  Renamed interfaces MUST be in the down state.
+//config:	  It is possible to use a file (default: /etc/mactab)
+//config:	  with list of new interface names and MACs.
+//config:	  Maximum interface name length: IFNAMSIZ = 16
+//config:	  File fields are separated by space or tab.
+//config:	  File format:
+//config:	  # Comment
+//config:	  new_interface_name    XX:XX:XX:XX:XX:XX
+//config:
+//config:config FEATURE_NAMEIF_EXTENDED
+//config:	bool "Extended nameif"
+//config:	default y
+//config:	depends on NAMEIF
+//config:	help
+//config:	  This extends the nameif syntax to support the bus_info, driver,
+//config:	  phyaddr selectors. The syntax is compatible to the normal nameif.
+//config:	  File format:
+//config:	    new_interface_name  driver=asix bus=usb-0000:00:08.2-3
+//config:	    new_interface_name  bus=usb-0000:00:08.2-3 00:80:C8:38:91:B5
+//config:	    new_interface_name  phy_address=2 00:80:C8:38:91:B5
+//config:	    new_interface_name  mac=00:80:C8:38:91:B5
+//config:	    new_interface_name  00:80:C8:38:91:B5
+
+//usage:#define nameif_trivial_usage
+//usage:	IF_NOT_FEATURE_NAMEIF_EXTENDED(
+//usage:		"[-s] [-c FILE] [IFNAME HWADDR]..."
+//usage:	)
+//usage:	IF_FEATURE_NAMEIF_EXTENDED(
+//usage:		"[-s] [-c FILE] [IFNAME SELECTOR]..."
+//usage:	)
+//usage:#define nameif_full_usage "\n\n"
+//usage:	"Rename network interface while it in the down state."
+//usage:	IF_NOT_FEATURE_NAMEIF_EXTENDED(
+//usage:     "\nThe device with address HWADDR is renamed to IFACE."
+//usage:	)
+//usage:	IF_FEATURE_NAMEIF_EXTENDED(
+//usage:     "\nThe device matched by SELECTOR is renamed to IFACE."
+//usage:     "\nSELECTOR can be a combination of:"
+//usage:     "\n	driver=STRING"
+//usage:     "\n	bus=STRING"
+//usage:     "\n	phy_address=NUM"
+//usage:     "\n	[mac=]XX:XX:XX:XX:XX:XX"
+//usage:	)
+//usage:     "\n"
+//usage:     "\n	-c FILE	Configuration file (default: /etc/mactab)"
+//usage:     "\n	-s	Log to syslog"
+//usage:
+//usage:#define nameif_example_usage
+//usage:       "$ nameif -s dmz0 00:A0:C9:8C:F6:3F\n"
+//usage:       " or\n"
+//usage:       "$ nameif -c /etc/my_mactab_file\n"
+
+#include "libbb.h"
+#include <syslog.h>
+#include <net/if.h>
+#include <netinet/ether.h>
+#include <linux/sockios.h>
+
+#ifndef IFNAMSIZ
+#define IFNAMSIZ 16
+#endif
+
+/* Taken from linux/sockios.h */
+#define SIOCSIFNAME  0x8923  /* set interface name */
+
+/* Octets in one Ethernet addr, from <linux/if_ether.h> */
+#define ETH_ALEN     6
+
+#ifndef ifr_newname
+#define ifr_newname ifr_ifru.ifru_slave
+#endif
+
+typedef struct ethtable_s {
+	struct ethtable_s *next;
+	struct ethtable_s *prev;
+	char *ifname;
+	struct ether_addr *mac;
+#if ENABLE_FEATURE_NAMEIF_EXTENDED
+	char *bus_info;
+	char *driver;
+	int32_t phy_address;
+#endif
+} ethtable_t;
+
+#if ENABLE_FEATURE_NAMEIF_EXTENDED
+/* Cut'n'paste from ethtool.h */
+#define ETHTOOL_BUSINFO_LEN 32
+/* these strings are set to whatever the driver author decides... */
+struct ethtool_drvinfo {
+	uint32_t cmd;
+	char  driver[32]; /* driver short name, "tulip", "eepro100" */
+	char  version[32];  /* driver version string */
+	char  fw_version[32]; /* firmware version string, if applicable */
+	char  bus_info[ETHTOOL_BUSINFO_LEN];  /* Bus info for this IF. */
+	/* For PCI devices, use pci_dev->slot_name. */
+	char  reserved1[32];
+	char  reserved2[16];
+	uint32_t n_stats;  /* number of u64's from ETHTOOL_GSTATS */
+	uint32_t testinfo_len;
+	uint32_t eedump_len; /* Size of data from ETHTOOL_GEEPROM (bytes) */
+	uint32_t regdump_len;  /* Size of data from ETHTOOL_GREGS (bytes) */
+};
+
+struct ethtool_cmd {
+	uint32_t   cmd;
+	uint32_t   supported;      /* Features this interface supports */
+	uint32_t   advertising;    /* Features this interface advertises */
+	uint16_t   speed;          /* The forced speed, 10Mb, 100Mb, gigabit */
+	uint8_t    duplex;         /* Duplex, half or full */
+	uint8_t    port;           /* Which connector port */
+	uint8_t    phy_address;
+	uint8_t    transceiver;    /* Which transceiver to use */
+	uint8_t    autoneg;        /* Enable or disable autonegotiation */
+	uint32_t   maxtxpkt;       /* Tx pkts before generating tx int */
+	uint32_t   maxrxpkt;       /* Rx pkts before generating rx int */
+	uint16_t   speed_hi;
+	uint16_t   reserved2;
+	uint32_t   reserved[3];
+};
+
+#define ETHTOOL_GSET      0x00000001 /* Get settings. */
+#define ETHTOOL_GDRVINFO  0x00000003 /* Get driver info. */
+#endif
+
+
+static void nameif_parse_selector(ethtable_t *ch, char *selector)
+{
+	struct ether_addr *lmac;
+#if ENABLE_FEATURE_NAMEIF_EXTENDED
+	int found_selector = 0;
+
+	while (*selector) {
+		char *next;
+#endif
+		selector = skip_whitespace(selector);
+#if ENABLE_FEATURE_NAMEIF_EXTENDED
+		ch->phy_address = -1;
+		if (*selector == '\0')
+			break;
+		/* Search for the end .... */
+		next = skip_non_whitespace(selector);
+		if (*next)
+			*next++ = '\0';
+		/* Check for selectors, mac= is assumed */
+		if (strncmp(selector, "bus=", 4) == 0) {
+			ch->bus_info = xstrdup(selector + 4);
+			found_selector++;
+		} else if (strncmp(selector, "driver=", 7) == 0) {
+			ch->driver = xstrdup(selector + 7);
+			found_selector++;
+		} else if (strncmp(selector, "phyaddr=", 8) == 0) {
+			ch->phy_address = xatoi_positive(selector + 8);
+			found_selector++;
+		} else {
+#endif
+			lmac = xmalloc(ETH_ALEN);
+			ch->mac = ether_aton_r(selector + (strncmp(selector, "mac=", 4) != 0 ? 0 : 4), lmac);
+			if (ch->mac == NULL)
+				bb_error_msg_and_die("can't parse %s", selector);
+#if  ENABLE_FEATURE_NAMEIF_EXTENDED
+			found_selector++;
+		};
+		selector = next;
+	}
+	if (found_selector == 0)
+		bb_error_msg_and_die("no selectors found for %s", ch->ifname);
+#endif
+}
+
+static void prepend_new_eth_table(ethtable_t **clist, char *ifname, char *selector)
+{
+	ethtable_t *ch;
+	if (strlen(ifname) >= IFNAMSIZ)
+		bb_error_msg_and_die("interface name '%s' too long", ifname);
+	ch = xzalloc(sizeof(*ch));
+	ch->ifname = xstrdup(ifname);
+	nameif_parse_selector(ch, selector);
+	ch->next = *clist;
+	if (*clist)
+		(*clist)->prev = ch;
+	*clist = ch;
+}
+
+#if ENABLE_FEATURE_CLEAN_UP
+static void delete_eth_table(ethtable_t *ch)
+{
+	free(ch->ifname);
+#if ENABLE_FEATURE_NAMEIF_EXTENDED
+	free(ch->bus_info);
+	free(ch->driver);
+#endif
+	free(ch->mac);
+	free(ch);
+};
+#else
+void delete_eth_table(ethtable_t *ch);
+#endif
+
+int nameif_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int nameif_main(int argc UNUSED_PARAM, char **argv)
+{
+	ethtable_t *clist = NULL;
+	const char *fname = "/etc/mactab";
+	int ctl_sk;
+	ethtable_t *ch;
+	parser_t *parser;
+	char *token[2];
+
+	if (1 & getopt32(argv, "sc:", &fname)) {
+		openlog(applet_name, 0, LOG_LOCAL0);
+		/* Why not just "="? I assume logging to stderr
+		 * can't hurt. 2>/dev/null if you don't like it: */
+		logmode |= LOGMODE_SYSLOG;
+	}
+	argv += optind;
+
+	if (argv[0]) {
+		do {
+			if (!argv[1])
+				bb_show_usage();
+			prepend_new_eth_table(&clist, argv[0], argv[1]);
+			argv += 2;
+		} while (*argv);
+	} else {
+		parser = config_open(fname);
+		while (config_read(parser, token, 2, 2, "# \t", PARSE_NORMAL))
+			prepend_new_eth_table(&clist, token[0], token[1]);
+		config_close(parser);
+	}
+
+	ctl_sk = xsocket(PF_INET, SOCK_DGRAM, 0);
+	parser = config_open2("/proc/net/dev", xfopen_for_read);
+
+	while (clist && config_read(parser, token, 2, 2, "\0: \t", PARSE_NORMAL)) {
+		struct ifreq ifr;
+#if  ENABLE_FEATURE_NAMEIF_EXTENDED
+		struct ethtool_drvinfo drvinfo;
+		struct ethtool_cmd eth_settings;
+#endif
+		if (parser->lineno <= 2)
+			continue; /* Skip the first two lines */
+
+		/* Find the current interface name and copy it to ifr.ifr_name */
+		memset(&ifr, 0, sizeof(struct ifreq));
+		strncpy_IFNAMSIZ(ifr.ifr_name, token[0]);
+
+#if ENABLE_FEATURE_NAMEIF_EXTENDED
+		/* Check for phy address */
+		memset(&eth_settings, 0, sizeof(eth_settings));
+		eth_settings.cmd = ETHTOOL_GSET;
+		ifr.ifr_data = (caddr_t) &eth_settings;
+		ioctl(ctl_sk, SIOCETHTOOL, &ifr);
+
+		/* Check for driver etc. */
+		memset(&drvinfo, 0, sizeof(drvinfo));
+		drvinfo.cmd = ETHTOOL_GDRVINFO;
+		ifr.ifr_data = (caddr_t) &drvinfo;
+		/* Get driver and businfo first, so we have it in drvinfo */
+		ioctl(ctl_sk, SIOCETHTOOL, &ifr);
+#endif
+		ioctl(ctl_sk, SIOCGIFHWADDR, &ifr);
+
+		/* Search the list for a matching device */
+		for (ch = clist; ch; ch = ch->next) {
+#if ENABLE_FEATURE_NAMEIF_EXTENDED
+			if (ch->bus_info && strcmp(ch->bus_info, drvinfo.bus_info) != 0)
+				continue;
+			if (ch->driver && strcmp(ch->driver, drvinfo.driver) != 0)
+				continue;
+			if (ch->phy_address != -1 && ch->phy_address != eth_settings.phy_address)
+				continue;
+#endif
+			if (ch->mac && memcmp(ch->mac, ifr.ifr_hwaddr.sa_data, ETH_ALEN) != 0)
+				continue;
+			/* if we came here, all selectors have matched */
+			break;
+		}
+		/* Nothing found for current interface */
+		if (!ch)
+			continue;
+
+		if (strcmp(ifr.ifr_name, ch->ifname) != 0) {
+			strcpy(ifr.ifr_newname, ch->ifname);
+			ioctl_or_perror_and_die(ctl_sk, SIOCSIFNAME, &ifr,
+					"can't change ifname %s to %s",
+					ifr.ifr_name, ch->ifname);
+		}
+		/* Remove list entry of renamed interface */
+		if (ch->prev != NULL)
+			ch->prev->next = ch->next;
+		else
+			clist = ch->next;
+		if (ch->next != NULL)
+			ch->next->prev = ch->prev;
+		if (ENABLE_FEATURE_CLEAN_UP)
+			delete_eth_table(ch);
+	}
+	if (ENABLE_FEATURE_CLEAN_UP) {
+		for (ch = clist; ch; ch = ch->next)
+			delete_eth_table(ch);
+		config_close(parser);
+	};
+
+	return 0;
+}