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-rw-r--r--toys/pending/ifconfig.c252
1 files changed, 90 insertions, 162 deletions
diff --git a/toys/pending/ifconfig.c b/toys/pending/ifconfig.c
index 9f83d644..dfd26479 100644
--- a/toys/pending/ifconfig.c
+++ b/toys/pending/ifconfig.c
@@ -62,13 +62,6 @@ struct if_list {
#define IO_MAP_INDEX 0x100
-//from kernel header ipv6.h
-#define IPV6_ADDR_ANY 0x0000U
-#define IPV6_ADDR_LOOPBACK 0x0010U
-#define IPV6_ADDR_LINKLOCAL 0x0020U
-#define IPV6_ADDR_SITELOCAL 0x0040U
-#define IPV6_ADDR_COMPATv4 0x0080U
-
//for the param settings.
//for ipv6 add/del
@@ -93,88 +86,6 @@ struct ifreq_inet6 {
#endif
/*
- * verify the host is local unix path.
- * if so, set the swl input param accordingly.
- */
-static int is_host_unix(char *host, sockaddr_with_len **swl)
-{
- if (strncmp(host, "local:", 6) == 0) {
- struct sockaddr_un *sockun;
-
- *swl = xzalloc(sizeof(struct sockaddr_with_len));
- (*swl)->socklen = sizeof(struct sockaddr_un);
- (*swl)->sock_u.sock.sa_family = AF_UNIX;
- sockun = (struct sockaddr_un *)&(*swl)->sock_u.sock;
- xstrncpy(sockun->sun_path, host + 6, sizeof(sockun->sun_path));
- return 1;
- }
- return 0;
-}
-
-/*
- * used to converts string into int and validate the input str for invalid int value or out-of-range.
- */
-unsigned get_strtou(char *str, char **endp, int base)
-{
- unsigned long uli;
- char *endptr;
-
- if(!isalnum(str[0])) {
- errno = ERANGE;
- return UINT_MAX;
- }
- errno = 0;
- uli = strtoul(str, &endptr, base);
- if(uli > UINT_MAX) {
- errno = ERANGE;
- return UINT_MAX;
- }
-
- if(endp) *endp = endptr;
- if(endptr[0]) {
- if(isalnum(endptr[0]) || errno) { //"123abc" or out-of-range
- errno = ERANGE;
- return UINT_MAX;
- }
- errno = EINVAL;
- }
- return uli;
-}
-
-
-
-/*
- * validate the input param (host) for valid ipv6 ip and extract port number (if there).
- */
-static void get_host_and_port(char **host, int *port)
-{
- char *ch_ptr;
- char *org_host = *host;
- if (*host[0] == '[') {
- (*host)++;
- ch_ptr = strchr(*host, ']');
- if (!ch_ptr || (ch_ptr[1] != ':' && ch_ptr[1] != '\0'))
- error_exit("bad address '%s'", org_host);
- } else {
- ch_ptr = strrchr(*host, ':');
- //There is more than one ':' like "::1"
- if(ch_ptr && strchr(*host, ':') != ch_ptr) ch_ptr = NULL;
- }
- if (ch_ptr) { //pointer to ":" or "]:"
- int size = ch_ptr - (*host) + 1;
- xstrncpy(*host, *host, size);
- if (*ch_ptr != ':') {
- ch_ptr++; //skip ']'
- //[nn] without port
- if (!*ch_ptr) return;
- }
- ch_ptr++; //skip ':' to get the port number.
- *port = get_strtou(ch_ptr, NULL, 10);
- if (errno || (unsigned)*port > 65535) error_exit("bad port '%s'", org_host);
- }
-}
-
-/*
* used to extract the address info from the given host ip
* and update the swl param accordingly.
*/
@@ -209,11 +120,41 @@ sockaddr_with_len *get_sockaddr(char *host, int port, sa_family_t af)
{
sockaddr_with_len *swl = NULL;
in_port_t port_num = htons(port);
+ char *s;
+
+ if (!strncmp(host, "local:", 6)) {
+ struct sockaddr_un *sockun;
+
+ swl = xzalloc(sizeof(struct sockaddr_with_len));
+ swl->socklen = sizeof(struct sockaddr_un);
+ swl->sock_u.sock.sa_family = AF_UNIX;
+ sockun = (struct sockaddr_un *)&swl->sock_u.sock;
+ xstrncpy(sockun->sun_path, host + 6, sizeof(sockun->sun_path));
- if(is_host_unix(host, &swl) && swl) return swl;
+ return swl;
+ }
+
+ // [ipv6]:port or exactly one :
+
+ if (*host == '[') {
+ host++;
+ s = strchr(host, ']');
+ if (s && !s[1]) s = 0;
+ else {
+ if (!s || s[1] != ':') error_exit("bad address '%s'", host-1);
+ s++;
+ }
+ } else {
+ s = strrchr(host, ':');
+ if (s && strchr(host, ':') != s) s = 0;
+ }
- //[IPV6_ip]:port_num
- if(host[0] == '[' || strrchr(host, ':')) get_host_and_port((char **)&host, &port);
+ if (s++) {
+ char *ss;
+ unsigned long p = strtoul(s, &ss, 0);
+ if (*ss || p > 65535) error_exit("bad port '%s'", s);
+ port = p;
+ }
if (get_socket_stream(host, af, &swl)) return NULL;
@@ -258,19 +199,15 @@ char *address_to_name(struct sockaddr *sock)
} else return NULL;
}
-static void set_flags(int sockfd, struct ifreq *ifre, int set_flag, int reset_flag)
+static void set_flags(int sockfd, struct ifreq *ifre, int set_flag,
+ int reset_flag)
{
xioctl(sockfd, SIOCGIFFLAGS, ifre);
- ifre->ifr_flags = (ifre->ifr_flags & (~reset_flag)) | set_flag;
+ ifre->ifr_flags &= ~reset_flag;
+ ifre->ifr_flags |= set_flag;
xioctl(sockfd, SIOCSIFFLAGS, ifre);
}
-static void set_mtu(int sockfd, struct ifreq *ifre, char *mtu)
-{
- ifre->ifr_mtu = strtoul(mtu, NULL, 0);
- xioctl(sockfd, SIOCSIFMTU, ifre);
-}
-
static void set_metric(int sockfd, struct ifreq *ifre, char *metric)
{
ifre->ifr_metric = strtoul(metric, NULL, 0);
@@ -311,7 +248,7 @@ static void set_ipv6_addr(int sockfd, struct ifreq *ifre, char *ipv6_addr, int r
free(swl);
}
-static void set_address(int sockfd, char *host_name, struct ifreq *ifre, int request, char *req_name)
+static void set_address(int sockfd, char *host_name, struct ifreq *ifre, int request)
{
struct sockaddr_in sock_in;
sockaddr_with_len *swl = NULL;
@@ -535,14 +472,13 @@ static void print_ip6_addr(struct if_list *il)
if(inet_pton(AF_INET6, ipv6_addr, (struct sockaddr *) &sock_in6.sin6_addr) > 0) {
sock_in6.sin6_family = AF_INET6;
if(inet_ntop(AF_INET6, &sock_in6.sin6_addr, toybuf, BUFSIZ)) {
- xprintf("%10sinet6 addr: %s/%d Scope:", " ", toybuf, plen);
- if(scope == IPV6_ADDR_ANY) xprintf(" Global");
- else if(scope == IPV6_ADDR_LOOPBACK) xprintf(" Host");
- else if(scope == IPV6_ADDR_LINKLOCAL) xprintf(" Link");
- else if(scope == IPV6_ADDR_SITELOCAL) xprintf(" Site");
- else if(scope == IPV6_ADDR_COMPATv4) xprintf(" Compat");
- else xprintf("Unknown");
- xputc('\n');
+ char *names[] = {"Global","Host","Link","Site","Compat"},
+ *name = "Unknown";
+ int j;
+
+ for (j=0; j < sizeof(names)/sizeof(*names); j++)
+ if (scope == (!!j)<<(j+3)) name = names[j];
+ xprintf("%10cinet6 addr: %s/%d Scope: %s\n", ' ', toybuf, plen, name);
}
}
}
@@ -756,18 +692,22 @@ void ifconfig_main(void)
sockfd = xsocket(AF_INET, SOCK_DGRAM, 0);
while(*++argv) {
- struct {
+ struct argh {
char *name;
- int flags[2]; // set, clear
+ int flags[2], addr; // set, clear
} try[] = {
- {"up", {IFF_UP|IFF_RUNNING, 0}},
- {"down", {0, IFF_UP}},
- {"arp", {0, IFF_NOARP}},
- {"trailers", {0, IFF_NOTRAILERS}},
- {"promisc", {IFF_PROMISC, 0}},
- {"allmulti", {IFF_ALLMULTI, 0}},
- {"multicast", {IFF_MULTICAST, 0}},
- {"dynamic", {IFF_DYNAMIC, 0}}
+ {"up", {IFF_UP|IFF_RUNNING, 0}, 0},
+ {"down", {0, IFF_UP}, 0},
+ {"arp", {0, IFF_NOARP}, 0},
+ {"trailers", {0, IFF_NOTRAILERS}, 0},
+ {"promisc", {IFF_PROMISC, 0}, 0},
+ {"allmulti", {IFF_ALLMULTI, 0}, 0},
+ {"multicast", {IFF_MULTICAST, 0}, 0},
+ {"dynamic", {IFF_DYNAMIC, 0}, 0},
+ {"pointopoint", {IFF_POINTOPOINT, 0}, SIOCSIFDSTADDR}, // 8918
+ {"broadcast", {IFF_BROADCAST, 0}, SIOCSIFBRDADDR}, //891a
+ {"netmask", {0, 0}, SIOCSIFNETMASK},
+ {"dstaddr", {0, 0}, SIOCSIFDSTADDR}
};
char *s = *argv;
int rev = (*s == '-');
@@ -775,48 +715,33 @@ void ifconfig_main(void)
s += rev;
for (i = 0; i < sizeof(try)/sizeof(*try); i++) {
- if (strcmp(try[i].name, s)) continue;
+ struct argh *t = try+i;
- xioctl(sockfd, SIOCGIFFLAGS, &ifre);
- ifre.ifr_flags &= ~try[i].flags[rev^1];
- ifre.ifr_flags |= try[i].flags[rev];
+ if (strcmp(t->name, s)) continue;
+
+ if (!rev && t->addr) {
+ if (!*++argv) show_help();
+ set_address(sockfd, *argv, &ifre, t->addr);
+ }
+ if (t->flags[0] || t->flags[1]) {
+ xioctl(sockfd, SIOCGIFFLAGS, &ifre);
+ ifre.ifr_flags &= ~t->flags[rev^1];
+ ifre.ifr_flags |= t->flags[rev];
+ xioctl(sockfd, SIOCSIFFLAGS, &ifre);
+ }
- xioctl(sockfd, SIOCSIFFLAGS, &ifre);
break;
}
if (i != sizeof(try)/sizeof(*try)) continue;
- if (!strcmp(*argv, "-pointopoint"))
- set_flags(sockfd, &ifre, 0, IFF_POINTOPOINT);
- /*value setup */
- else if (!strcmp(*argv, "pointopoint")) {
- if (!*++argv) show_help();
- set_address(sockfd, *argv, &ifre, SIOCSIFDSTADDR, "SIOCSIFDSTADDR");
- set_flags(sockfd, &ifre, IFF_POINTOPOINT, 0);
- } else if (!strcmp(*argv, "netmask")) {
- if (!*++argv) show_help();
- set_address(sockfd, *argv, &ifre, SIOCSIFNETMASK, "SIOCSIFNETMASK");
- } else if (!strcmp(*argv, "-broadcast")) {
- set_flags(sockfd, &ifre, 0, IFF_BROADCAST);
- } else if (!strcmp(*argv, "broadcast")) {
- if (!*++argv) show_help();
- set_address(sockfd, *argv, &ifre, SIOCSIFBRDADDR, "SIOCSIFBRDADDR");
- set_flags(sockfd, &ifre, IFF_BROADCAST, 0);
- } else if (!strcmp(*argv, "dstaddr")) {
- if (!*++argv) show_help();
- set_address(sockfd, *argv, &ifre, SIOCSIFDSTADDR, "SIOCSIFDSTADDR");
- } else if (!strcmp(*argv, "hw")) {
+ if (!strcmp(*argv, "hw")) {
if (!*++argv) show_help();
set_hw_address(sockfd, &argv, &ifre, SIOCSIFHWADDR, "SIOCSIFHWADDR");
+
} else if (!strcmp(*argv, "mtu")) {
if (!*++argv) show_help();
- set_mtu(sockfd, &ifre, *argv);
- } else if (!strcmp(*argv, "metric")) {
- if (!*++argv) show_help();
- set_metric(sockfd, &ifre, *argv);
- } else if (!strcmp(*argv, "txqueuelen")) {
- if (!*++argv) show_help();
- set_qlen(sockfd, &ifre, *argv);
+ ifre.ifr_mtu = strtoul(*argv, NULL, 0);
+ xioctl(sockfd, SIOCSIFMTU, &ifre);
} else if (!strcmp(*argv, "keepalive")) {
if (!*++argv) show_help();
ifre.ifr_data = (void *)strtoul(*argv, 0, 0);
@@ -825,6 +750,15 @@ void ifconfig_main(void)
if (!*++argv) show_help();
ifre.ifr_data = (void *)strtoul(*argv, 0, 0);
xioctl(sockfd, SIOCSOUTFILL, &ifre);
+
+
+
+ } else if (!strcmp(*argv, "metric")) {
+ if (!*++argv) show_help();
+ set_metric(sockfd, &ifre, *argv);
+ } else if (!strcmp(*argv, "txqueuelen")) {
+ if (!*++argv) show_help();
+ set_qlen(sockfd, &ifre, *argv);
} else if (!strcmp(*argv, "add")) {
if (!*++argv) show_help();
set_ipv6_addr(sockfd, &ifre, *argv, SIOCSIFADDR, "SIOCSIFADDR");
@@ -840,20 +774,14 @@ void ifconfig_main(void)
} else if (!strcmp(*argv, "irq")) {
if (!*++argv) show_help();
set_irq(sockfd, &ifre, *argv, SIOCSIFMAP, "SIOCSIFMAP");
+
+
} else {
if (isdigit(**argv) || !strcmp(*argv, "default")) {
- char *iface_name = ifre.ifr_name;
- short int is_colon = 0;
- set_address(sockfd, *argv, &ifre, SIOCSIFADDR, "SIOCSIFADDR");
- while (*iface_name) {
- if (*iface_name == ':') {
- is_colon = 1;
- break;
- }
- iface_name++;
- }
+ set_address(sockfd, *argv, &ifre, SIOCSIFADDR);
//if the interface name is not an alias; set the flag and continue.
- if(!is_colon) set_flags(sockfd, &ifre, IFF_UP | IFF_RUNNING, 0);
+ if(!strchr(ifre.ifr_name, ':'))
+ set_flags(sockfd, &ifre, IFF_UP | IFF_RUNNING, 0);
} else if (!strcmp(*argv, "inet") || !strcmp(*argv, "inet6")) continue;
else {
errno = EINVAL;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-28 06:53:03 +0000