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-rw-r--r--toys/pending/ifconfig.c340
1 files changed, 131 insertions, 209 deletions
diff --git a/toys/pending/ifconfig.c b/toys/pending/ifconfig.c
index 86ef0b92..9bd2e4fd 100644
--- a/toys/pending/ifconfig.c
+++ b/toys/pending/ifconfig.c
@@ -37,7 +37,7 @@ config IFCONFIG
#include <net/ethernet.h>
GLOBALS(
- void *iface_list;
+ void *if_list;
)
typedef struct sockaddr_with_len {
@@ -50,31 +50,15 @@ typedef struct sockaddr_with_len {
} sockaddr_with_len;
// man netdevice
-struct iface_list {
- struct iface_list *next;
- int hw_type, ifrmtu, ifrmetric, txqueuelen, non_virtual_iface;
- short ifrflags, ifaddr;
- struct sockaddr ifraddr, ifrdstaddr, ifrbroadaddr, ifrnetmask, ifrhwaddr;
- struct ifmap ifrmap;
-
- char ifrname[IFNAMSIZ]; //interface name.
- unsigned long long receive_bytes; //total bytes received
- unsigned long long receive_packets; //total packets received
- unsigned long receive_errors; //bad packets received
- unsigned long receive_drop; //no space in linux buffers
- unsigned long receive_fifo; //receiver fifo overrun
- unsigned long receive_frame; //received frame alignment error
- unsigned long receive_compressed;
- unsigned long receive_multicast; //multicast packets received
-
- unsigned long long transmit_bytes; //total bytes transmitted
- unsigned long long transmit_packets; //total packets transmitted
- unsigned long transmit_errors; //packet transmit problems
- unsigned long transmit_drop; //no space available in linux
- unsigned long transmit_fifo;
- unsigned long transmit_colls;
- unsigned long transmit_carrier;
- unsigned long transmit_compressed; //num_tr_compressed;
+struct if_list {
+ struct if_list *next;
+ int hw_type, mtu, metric, txqueuelen, non_virtual_iface;
+ short flags, hasaddr;
+ struct sockaddr addr, dstaddr, broadaddr, netmask, hwaddr;
+ struct ifmap map;
+
+ char name[IFNAMSIZ];
+ unsigned long long val[16];
};
#define HW_NAME_LEN 20
@@ -83,31 +67,12 @@ struct iface_list {
typedef struct _hw_info {
char hw_name[HW_NAME_LEN];
char hw_title[HW_TITLE_LEN];
- int hw_addrlen;
+ int hw_addrlen;
} HW_INFO;
#define NO_RANGE -1
#define IO_MAP_INDEX 0x100
-static int show_iface(char *iface_name);
-static void print_ip6_addr(struct iface_list *il);
-
-//from /usr/include/linux/netdevice.h
-#ifdef IFF_PORTSEL
-//Media selection options.
-# ifndef IF_PORT_UNKNOWN
-enum {
- IF_PORT_UNKNOWN = 0,
- IF_PORT_10BASE2,
- IF_PORT_10BASET,
- IF_PORT_AUI,
- IF_PORT_100BASET,
- IF_PORT_100BASETX,
- IF_PORT_100BASEFX
-};
-# endif
-#endif
-
//from kernel header ipv6.h
#define IPV6_ADDR_ANY 0x0000U
#define IPV6_ADDR_LOOPBACK 0x0010U
@@ -143,13 +108,6 @@ void xioctl(int fd, int request, void *data)
if (ioctl(fd, request, data) < 0) perror_exit("ioctl %d", request);
}
-char *safe_strncpy(char *dst, char *src, size_t size)
-{
- if(!size) return dst;
- dst[--size] = '\0';
- return strncpy(dst, src, size);
-}
-
/*
* verify the host is local unix path.
* if so, set the swl input param accordingly.
@@ -163,7 +121,7 @@ static int is_host_unix(char *host, sockaddr_with_len **swl)
(*swl)->socklen = sizeof(struct sockaddr_un);
(*swl)->sock_u.sock.sa_family = AF_UNIX;
sockun = (struct sockaddr_un *)&(*swl)->sock_u.sock;
- safe_strncpy(sockun->sun_path, host + 6, sizeof(sockun->sun_path));
+ xstrncpy(sockun->sun_path, host + 6, sizeof(sockun->sun_path));
return 1;
}
return 0;
@@ -220,7 +178,7 @@ static void get_host_and_port(char **host, int *port)
}
if (ch_ptr) { //pointer to ":" or "]:"
int size = ch_ptr - (*host) + 1;
- safe_strncpy(*host, *host, size);
+ xstrncpy(*host, *host, size);
if (*ch_ptr != ':') {
ch_ptr++; //skip ']'
//[nn] without port
@@ -492,128 +450,82 @@ static void set_irq(int sockfd, struct ifreq *ifre, char *irq_val, int request,
xioctl(sockfd, request, ifre);
}
-/* Display ifconfig info. */
-static void get_proc_info(char *buff, struct iface_list *il)
+static void add_iface_to_list(struct if_list *newnode)
{
- char *name;
-
- while (isspace(*buff)) buff++;
- name = strsep(&buff, ":");
- if(!buff)
- error_exit("error in getting the device name:");
-
- if(strlen(name) < (IFNAMSIZ)) {
- strncpy(il->ifrname, name, IFNAMSIZ-1);
- il->ifrname[IFNAMSIZ-1] = 0;
- } else il->ifrname[0] = 0;
-
- sscanf(buff, "%llu%llu%lu%lu%lu%lu%lu%lu%llu%llu%lu%lu%lu%lu%lu%lu",
- &il->receive_bytes, &il->receive_packets, &il->receive_errors,
- &il->receive_drop, &il->receive_fifo, &il->receive_frame,
- &il->receive_compressed, &il->receive_multicast, &il->transmit_bytes,
- &il->transmit_packets, &il->transmit_errors, &il->transmit_drop,
- &il->transmit_fifo, &il->transmit_colls, &il->transmit_carrier,
- &il->transmit_compressed);
-}
-
-static void add_iface_to_list(struct iface_list *newnode)
-{
- struct iface_list *head_ref = TT.iface_list;
+ struct if_list *head_ref = TT.if_list;
- if(!head_ref || strcmp(newnode->ifrname, head_ref->ifrname) < 0) {
+ if(!head_ref || strcmp(newnode->name, head_ref->name) < 0) {
newnode->next = head_ref;
head_ref = newnode;
} else {
- struct iface_list *current = head_ref;
- while(current->next && strcmp(current->next->ifrname, newnode->ifrname) < 0)
+ struct if_list *current = head_ref;
+ while(current->next && strcmp(current->next->name, newnode->name) < 0)
current = current->next;
newnode->next = current->next;
current->next = newnode;
}
- TT.iface_list = (void *)head_ref;
+ TT.if_list = (void *)head_ref;
}
-static int get_device_info(struct iface_list *il)
+static int get_device_info(struct if_list *il)
{
struct ifreq ifre;
- char *ifrname = il->ifrname;
+ char *name = il->name;
int sokfd;
if ((sokfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) return sokfd;
- strncpy(ifre.ifr_name, ifrname, IFNAMSIZ);
+ strncpy(ifre.ifr_name, name, IFNAMSIZ);
if(ioctl(sokfd, SIOCGIFFLAGS, &ifre) < 0) {
close(sokfd);
return NO_RANGE;
}
- il->ifrflags = ifre.ifr_flags;
- strncpy(ifre.ifr_name, ifrname, IFNAMSIZ);
+ il->flags = ifre.ifr_flags;
+ strncpy(ifre.ifr_name, name, IFNAMSIZ);
if(ioctl(sokfd, SIOCGIFHWADDR, &ifre) >= 0)
- memcpy(il->ifrhwaddr.sa_data, ifre.ifr_hwaddr.sa_data, sizeof(il->ifrhwaddr.sa_data));
+ memcpy(il->hwaddr.sa_data, ifre.ifr_hwaddr.sa_data, sizeof(il->hwaddr.sa_data));
il->hw_type = ifre.ifr_hwaddr.sa_family;
- strncpy(ifre.ifr_name, ifrname, IFNAMSIZ);
+ strncpy(ifre.ifr_name, name, IFNAMSIZ);
if(ioctl(sokfd, SIOCGIFMETRIC, &ifre) >= 0)
- il->ifrmetric = ifre.ifr_metric;
+ il->metric = ifre.ifr_metric;
- strncpy(ifre.ifr_name, ifrname, IFNAMSIZ);
+ strncpy(ifre.ifr_name, name, IFNAMSIZ);
if(ioctl(sokfd, SIOCGIFMTU, &ifre) >= 0)
- il->ifrmtu = ifre.ifr_mtu;
+ il->mtu = ifre.ifr_mtu;
- strncpy(ifre.ifr_name, ifrname, IFNAMSIZ);
+ strncpy(ifre.ifr_name, name, IFNAMSIZ);
if(ioctl(sokfd, SIOCGIFMAP, &ifre) == 0)
- il->ifrmap = ifre.ifr_map;
+ il->map = ifre.ifr_map;
- strncpy(ifre.ifr_name, ifrname, IFNAMSIZ);
+ strncpy(ifre.ifr_name, name, IFNAMSIZ);
il->txqueuelen = NO_RANGE;
if(ioctl(sokfd, SIOCGIFTXQLEN, &ifre) >= 0)
il->txqueuelen = ifre.ifr_qlen;
- strncpy(ifre.ifr_name, ifrname, IFNAMSIZ);
+ strncpy(ifre.ifr_name, name, IFNAMSIZ);
ifre.ifr_addr.sa_family = AF_INET;
if(!ioctl(sokfd, SIOCGIFADDR, &ifre)) {
- il->ifaddr = 1;
- il->ifraddr = ifre.ifr_addr;
- strncpy(ifre.ifr_name, ifrname, IFNAMSIZ);
+ il->hasaddr = 1;
+ il->addr = ifre.ifr_addr;
+ strncpy(ifre.ifr_name, name, IFNAMSIZ);
if(ioctl(sokfd, SIOCGIFDSTADDR, &ifre) >= 0)
- il->ifrdstaddr = ifre.ifr_dstaddr;
+ il->dstaddr = ifre.ifr_dstaddr;
- strncpy(ifre.ifr_name, ifrname, IFNAMSIZ);
+ strncpy(ifre.ifr_name, name, IFNAMSIZ);
if(ioctl(sokfd, SIOCGIFBRDADDR, &ifre) >= 0)
- il->ifrbroadaddr = ifre.ifr_broadaddr;
+ il->broadaddr = ifre.ifr_broadaddr;
- strncpy(ifre.ifr_name, ifrname, IFNAMSIZ);
+ strncpy(ifre.ifr_name, name, IFNAMSIZ);
if(ioctl(sokfd, SIOCGIFNETMASK, &ifre) >= 0)
- il->ifrnetmask = ifre.ifr_netmask;
+ il->netmask = ifre.ifr_netmask;
}
close(sokfd);
return 0;
}
-static void get_ifconfig_info(void)
-{
- int i;
- FILE *fp;
-
- if (!(fp = fopen("/proc/net/dev", "r"))) return;
-
- for (i=0; fgets(toybuf, sizeof(toybuf), fp); i++) {
- struct iface_list *il;
-
- if (i<2) continue;
-
- il = xzalloc(sizeof(struct iface_list));
- get_proc_info(toybuf, il);
- add_iface_to_list(il);
- il->non_virtual_iface = 1;
- errno = 0;
- if(get_device_info(il) < 0) perror_exit("%s", il->ifrname);
- }
- fclose(fp);
-}
-
static void get_hw_info(int hw_type, HW_INFO *hw_info)
{
memset(hw_info, 0, sizeof(HW_INFO));
@@ -654,9 +566,9 @@ static void get_hw_info(int hw_type, HW_INFO *hw_info)
}
}
-static void print_hw_addr(int hw_type, HW_INFO hw_info, struct iface_list *il)
+static void print_hw_addr(int hw_type, HW_INFO hw_info, struct if_list *il)
{
- char *address = il->ifrhwaddr.sa_data;
+ char *address = il->hwaddr.sa_data;
if(!address || !hw_info.hw_addrlen) return;
xprintf("HWaddr ");
@@ -680,24 +592,24 @@ static char *get_ip_addr(struct sockaddr *skaddr)
return inet_ntoa(sin->sin_addr);
}
-static void print_ip_addr(struct iface_list *il)
+static void print_ip_addr(struct if_list *il)
{
char *af_name;
- int af = il->ifraddr.sa_family;
+ int af = il->addr.sa_family;
if (af == AF_INET) af_name = "inet";
else if (af == AF_INET6) af_name = "inet6";
else if (af == AF_UNSPEC) af_name = "unspec";
- xprintf("%10s%s addr:%s ", " ", af_name, get_ip_addr(&il->ifraddr));
- if(il->ifrflags & IFF_POINTOPOINT)
- xprintf(" P-t-P:%s ", get_ip_addr(&il->ifrdstaddr));
- if(il->ifrflags & IFF_BROADCAST)
- xprintf(" Bcast:%s ", get_ip_addr(&il->ifrbroadaddr));
- xprintf(" Mask:%s\n", get_ip_addr(&il->ifrnetmask));
+ xprintf("%10s%s addr:%s ", " ", af_name, get_ip_addr(&il->addr));
+ if(il->flags & IFF_POINTOPOINT)
+ xprintf(" P-t-P:%s ", get_ip_addr(&il->dstaddr));
+ if(il->flags & IFF_BROADCAST)
+ xprintf(" Bcast:%s ", get_ip_addr(&il->broadaddr));
+ xprintf(" Mask:%s\n", get_ip_addr(&il->netmask));
}
-static void print_ip6_addr(struct iface_list *il)
+static void print_ip6_addr(struct if_list *il)
{
char iface_name[IFNAMSIZ] = {0,};
int plen, scope;
@@ -714,7 +626,7 @@ static void print_ip6_addr(struct iface_list *il)
if((nitems < 0) && feof(fp)) break;
perror_exit("sscanf");
}
- if(strcmp(il->ifrname, iface_name) == 0) {
+ if(strcmp(il->name, iface_name) == 0) {
int i = 0;
struct sockaddr_in6 sock_in6;
int len = sizeof(ipv6_addr) / (sizeof ipv6_addr[0]);
@@ -744,24 +656,24 @@ static void print_ip6_addr(struct iface_list *il)
fclose(fp);
}
-static void display_ifconfig(struct iface_list *il)
+static void display_ifconfig(struct if_list *il)
{
HW_INFO hw_info;
get_hw_info(il->hw_type, &hw_info);
- xprintf("%-9s Link encap:%s ", il->ifrname, hw_info.hw_title);
+ xprintf("%-9s Link encap:%s ", il->name, hw_info.hw_title);
print_hw_addr(il->hw_type, hw_info, il);
xputc('\n');
//print addr, p-p addr, broadcast addr and mask addr.
- if(il->ifaddr) print_ip_addr(il);
+ if(il->hasaddr) print_ip_addr(il);
//for ipv6 to do.
print_ip6_addr(il);
xprintf("%10s", " ");
//print flags
- if (il->ifrflags) {
+ if (il->flags) {
unsigned short mask = 1;
char **s, *str[] = {
"UP", "BROADCAST", "DEBUG", "LOOPBACK", "POINTOPOINT", "NOTRAILERS",
@@ -770,67 +682,60 @@ static void display_ifconfig(struct iface_list *il)
};
for(s = str; *s; s++) {
- if(il->ifrflags & mask) xprintf("%s ", *s);
+ if(il->flags & mask) xprintf("%s ", *s);
mask = mask << 1;
}
} else xprintf("[NO FLAGS] ");
- if(!il->ifrmetric) il->ifrmetric = 1;
- xprintf(" MTU:%d Metric:%d\n", il->ifrmtu, il->ifrmetric);
+ if(!il->metric) il->metric = 1;
+ xprintf(" MTU:%d Metric:%d", il->mtu, il->metric);
if(il->non_virtual_iface) {
- xprintf("%10cRX packets:%llu errors:%lu dropped:%lu overruns:%lu frame:%lu\n",
- ' ', il->receive_packets, il->receive_errors, il->receive_drop,
- il->receive_fifo, il->receive_frame);
- //Dummy types for non ARP hardware.
- if((il->hw_type == ARPHRD_CSLIP) || (il->hw_type == ARPHRD_CSLIP6))
- xprintf("%10ccompressed:%lu\n", ' ', il->receive_compressed);
- xprintf("%10cTX packets:%llu errors:%lu dropped:%lu overruns:%lu carrier:%lu\n", ' ',
- il->transmit_packets, il->transmit_errors, il->transmit_drop,
- il->transmit_fifo, il->transmit_carrier);
- xprintf("%10ccollisions:%lu ", ' ', il->transmit_colls);
- //Dummy types for non ARP hardware.
- if((il->hw_type == ARPHRD_CSLIP) || (il->hw_type == ARPHRD_CSLIP6))
- xprintf("compressed:%lu ", il->transmit_compressed);
- if(il->txqueuelen != NO_RANGE) xprintf("txqueuelen:%d ", il->txqueuelen);
-
- xprintf("\n%10cRX bytes:%llu TX bytes:%llu\n", ' ', il->receive_bytes,
- il->transmit_bytes);
+ char *label[] = {"RX bytes", "RX packets", "errors", "dropped", "overruns",
+ "frame", 0, 0, "TX bytes", "TX packets", "errors", "dropped", "overruns",
+ "collisions", "carrier", 0, "txqueuelen"};
+ signed char order[] = {-1, 1, 2, 3, 4, 5, -1, 9, 10, 11, 12, 14, -1,
+ 13, 16, -1, 0, 8};
+ int i;
+
+ for (i = 0; i < sizeof(order); i++) {
+ int j = order[i];
+
+ if (j < 0) xprintf("\n%10c", ' ');
+ else xprintf("%s:%llu ", label[j],
+ j==16 ? (unsigned long long)il->txqueuelen : il->val[j]);
+ }
}
- if(il->ifrmap.irq || il->ifrmap.mem_start || il->ifrmap.dma || il->ifrmap.base_addr) {
+ xputc('\n');
+
+ if(il->map.irq || il->map.mem_start || il->map.dma || il->map.base_addr) {
xprintf("%10c", ' ');
- if(il->ifrmap.irq) xprintf("Interrupt:%d ", il->ifrmap.irq);
- if(il->ifrmap.base_addr >= IO_MAP_INDEX)
- xprintf("Base address:0x%lx ", il->ifrmap.base_addr);
- if(il->ifrmap.mem_start)
- xprintf("Memory:%lx-%lx ", il->ifrmap.mem_start, il->ifrmap.mem_end);
- if(il->ifrmap.dma) xprintf("DMA chan:%x ", il->ifrmap.dma);
+ if(il->map.irq) xprintf("Interrupt:%d ", il->map.irq);
+ if(il->map.base_addr >= IO_MAP_INDEX)
+ xprintf("Base address:0x%lx ", il->map.base_addr);
+ if(il->map.mem_start)
+ xprintf("Memory:%lx-%lx ", il->map.mem_start, il->map.mem_end);
+ if(il->map.dma) xprintf("DMA chan:%x ", il->map.dma);
xputc('\n');
}
xputc('\n');
}
-static int readconf(void)
+static void readconf(void)
{
int num_of_req = 30;
struct ifconf ifcon;
struct ifreq *ifre;
- int num, status = -1, sokfd;
+ int num, sokfd;
ifcon.ifc_buf = NULL;
sokfd = socket(AF_INET, SOCK_DGRAM, 0);
- if(sokfd < 0) {
- perror_msg("error: no inet socket available");
- return -1;
- }
+ if(sokfd < 0) perror_exit("socket");
for (;;) {
ifcon.ifc_len = sizeof(struct ifreq) * num_of_req; //Size of buffer.
ifcon.ifc_buf = xrealloc(ifcon.ifc_buf, ifcon.ifc_len);
- if((status = ioctl(sokfd, SIOCGIFCONF, &ifcon)) == -1) {
- perror_msg("ioctl %#x failed", SIOCGIFCONF);
- goto LOOP_BREAK;
- }
+ xioctl(sokfd, SIOCGIFCONF, &ifcon);
//in case of overflow, increase number of requests and retry.
if (ifcon.ifc_len == (int)(sizeof(struct ifreq) * num_of_req)) {
num_of_req += 10;
@@ -842,58 +747,75 @@ static int readconf(void)
ifre = ifcon.ifc_req;
for(num = 0; num < ifcon.ifc_len && ifre; num += sizeof(struct ifreq), ifre++) {
//Escape duplicate values from the list.
- struct iface_list *il;
+ struct if_list *il;
- for(il = TT.iface_list; il; il = il->next)
- if(!strcmp(ifre->ifr_name, il->ifrname)) break;
+ for(il = TT.if_list; il; il = il->next)
+ if(!strcmp(ifre->ifr_name, il->name)) break;
if(!il) {
- il = xzalloc(sizeof(struct iface_list));
- safe_strncpy(il->ifrname, ifre->ifr_name, IFNAMSIZ);
+ il = xzalloc(sizeof(struct if_list));
+ xstrncpy(il->name, ifre->ifr_name, IFNAMSIZ);
add_iface_to_list(il);
errno = 0;
- if(get_device_info(il) < 0) perror_exit("%s", il->ifrname);
+ if(get_device_info(il) < 0) perror_exit("%s", il->name);
}
}
-LOOP_BREAK:
close(sokfd);
free(ifcon.ifc_buf);
-
- return status;
}
-static int show_iface(char *iface_name)
+static void show_iface(char *iface_name)
{
- struct iface_list *il;
+ struct if_list *il;
+ int i, j;
+ FILE *fp;
+
+ fp = xfopen("/proc/net/dev", "r");
+
+ for (i=0; fgets(toybuf, sizeof(toybuf), fp); i++) {
+ char *name, *buf;
+
+ if (i<2) continue;
+
+ il = xzalloc(sizeof(struct if_list));
+ for (buf = toybuf; isspace(*buf); buf++);
+ name = strsep(&buf, ":");
+ if(!buf) error_exit("bad name %s", name);
+ xstrncpy(il->name, name, IFNAMSIZ);
+
+ errno = 0;
+ for (j=0; j<16 && !errno; j++) il->val[j] = strtoll(buf, &buf, 0);
+ if (errno) perror_exit("bad %s at %s", name, buf);
- get_ifconfig_info();
+ add_iface_to_list(il);
+ il->non_virtual_iface = 1;
+ errno = 0;
+ if(get_device_info(il) < 0) perror_exit("%s", il->name);
+ }
+ fclose(fp);
if(iface_name) {
- for(il = TT.iface_list; il; il = il->next) {
- if(!strcmp(il->ifrname, iface_name)) {
+ for(il = TT.if_list; il; il = il->next) {
+ if(!strcmp(il->name, iface_name)) {
display_ifconfig(il);
break;
}
}
//if the given interface is not in the list.
if(!il) {
- il = xzalloc(sizeof(struct iface_list));
- safe_strncpy(il->ifrname, iface_name, IFNAMSIZ);
+ il = xzalloc(sizeof(struct if_list));
+ xstrncpy(il->name, iface_name, IFNAMSIZ);
errno = 0;
- if(get_device_info(il) < 0) {
- perror_msg("%s", iface_name);
- free(il);
- return 1;
- } else display_ifconfig(il);
+ if(get_device_info(il) < 0) perror_exit("%s", iface_name);
+ else display_ifconfig(il);
free(il);
}
} else {
- if(readconf() < 0) return 1;
- for(il = TT.iface_list; il; il = il->next)
- if((il->ifrflags & IFF_UP) || (toys.optflags & FLAG_a))
+ readconf();
+ for(il = TT.if_list; il; il = il->next)
+ if((il->flags & IFF_UP) || (toys.optflags & FLAG_a))
display_ifconfig(il);
}
- return 0;
}
void ifconfig_main(void)
@@ -904,9 +826,9 @@ void ifconfig_main(void)
//"ifconfig" / "ifconfig eth0"
if(!argv[0] || !argv[1]) { //one or no argument
- toys.exitval = show_iface(*argv);
+ show_iface(*argv);
//free allocated memory.
- llist_traverse(TT.iface_list, free);
+ llist_traverse(TT.if_list, free);
return;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-02 17:02:40 +0000