* Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
*/
+#include "libbb.h"
+/* After libbb.h, since it needs sys/types.h on some systems */
#include <sys/utsname.h>
#include <fnmatch.h>
-#include "libbb.h"
-
#define MAX_OPT_DEPTH 10
#define EUNBALBRACK 10001
#define EUNDEFVAR 10002
struct method_t {
const char *name;
- int (*up)(struct interface_defn_t *ifd, execfn *e);
- int (*down)(struct interface_defn_t *ifd, execfn *e);
+ int (*up)(struct interface_defn_t *ifd, execfn *e) FAST_FUNC;
+ int (*down)(struct interface_defn_t *ifd, execfn *e) FAST_FUNC;
};
struct address_family_t {
struct mapping_defn_t *mappings;
};
-#define OPTION_STR "anvf" USE_FEATURE_IFUPDOWN_MAPPING("m") "i:"
+
+#define OPTION_STR "anvf" IF_FEATURE_IFUPDOWN_MAPPING("m") "i:"
enum {
- OPT_do_all = 0x1,
- OPT_no_act = 0x2,
- OPT_verbose = 0x4,
- OPT_force = 0x8,
+ OPT_do_all = 0x1,
+ OPT_no_act = 0x2,
+ OPT_verbose = 0x4,
+ OPT_force = 0x8,
OPT_no_mappings = 0x10,
};
-#define DO_ALL (option_mask32 & OPT_do_all)
-#define NO_ACT (option_mask32 & OPT_no_act)
-#define VERBOSE (option_mask32 & OPT_verbose)
-#define FORCE (option_mask32 & OPT_force)
+#define DO_ALL (option_mask32 & OPT_do_all)
+#define NO_ACT (option_mask32 & OPT_no_act)
+#define VERBOSE (option_mask32 & OPT_verbose)
+#define FORCE (option_mask32 & OPT_force)
#define NO_MAPPINGS (option_mask32 & OPT_no_mappings)
-static char **my_environ;
-static const char *startup_PATH;
+struct globals {
+ char **my_environ;
+ const char *startup_PATH;
+};
+#define G (*(struct globals*)&bb_common_bufsiz1)
+#define INIT_G() do { } while (0)
+
#if ENABLE_FEATURE_IFUPDOWN_IPV4 || ENABLE_FEATURE_IFUPDOWN_IPV6
int i = strncmp(l, r, llen);
if (i == 0)
- return -r[llen];
+ return - (unsigned char)r[llen];
return i;
}
int i;
if (strncmpz(id, "iface", idlen) == 0) {
- static char *label_buf;
+ // ubuntu's ifup doesn't do this:
+ //static char *label_buf;
//char *result;
-
- free(label_buf);
- label_buf = xstrdup(ifd->iface);
- // Remove virtual iface suffix - why?
- // ubuntu's ifup doesn't do this
+ //free(label_buf);
+ //label_buf = xstrdup(ifd->iface);
+ // Remove virtual iface suffix
//result = strchrnul(label_buf, ':');
//*result = '\0';
- return label_buf;
+ //return label_buf;
+
+ return ifd->iface;
}
if (strncmpz(id, "label", idlen) == 0) {
return ifd->iface;
#endif
#if ENABLE_FEATURE_IFUPDOWN_IPV6
-static int loopback_up6(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC loopback_up6(struct interface_defn_t *ifd, execfn *exec)
{
#if ENABLE_FEATURE_IFUPDOWN_IP
int result;
#endif
}
-static int loopback_down6(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC loopback_down6(struct interface_defn_t *ifd, execfn *exec)
{
#if ENABLE_FEATURE_IFUPDOWN_IP
return execute("ip link set %iface% down", ifd, exec);
#endif
}
-static int static_up6(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC static_up6(struct interface_defn_t *ifd, execfn *exec)
{
int result;
#if ENABLE_FEATURE_IFUPDOWN_IP
return ((result == 3) ? 3 : 0);
}
-static int static_down6(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC static_down6(struct interface_defn_t *ifd, execfn *exec)
{
#if ENABLE_FEATURE_IFUPDOWN_IP
return execute("ip link set %iface% down", ifd, exec);
}
#if ENABLE_FEATURE_IFUPDOWN_IP
-static int v4tunnel_up(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC v4tunnel_up(struct interface_defn_t *ifd, execfn *exec)
{
int result;
result = execute("ip tunnel add %iface% mode sit remote "
return ((result == 4) ? 4 : 0);
}
-static int v4tunnel_down(struct interface_defn_t * ifd, execfn * exec)
+static int FAST_FUNC v4tunnel_down(struct interface_defn_t * ifd, execfn * exec)
{
return execute("ip tunnel del %iface%", ifd, exec);
}
#endif /* FEATURE_IFUPDOWN_IPV6 */
#if ENABLE_FEATURE_IFUPDOWN_IPV4
-static int loopback_up(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC loopback_up(struct interface_defn_t *ifd, execfn *exec)
{
#if ENABLE_FEATURE_IFUPDOWN_IP
int result;
#endif
}
-static int loopback_down(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC loopback_down(struct interface_defn_t *ifd, execfn *exec)
{
#if ENABLE_FEATURE_IFUPDOWN_IP
int result;
#endif
}
-static int static_up(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC static_up(struct interface_defn_t *ifd, execfn *exec)
{
int result;
#if ENABLE_FEATURE_IFUPDOWN_IP
#endif
}
-static int static_down(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC static_down(struct interface_defn_t *ifd, execfn *exec)
{
int result;
#if ENABLE_FEATURE_IFUPDOWN_IP
}
#if ENABLE_FEATURE_IFUPDOWN_EXTERNAL_DHCP
-struct dhcp_client_t
-{
+struct dhcp_client_t {
const char *name;
const char *startcmd;
const char *stopcmd;
#endif /* ENABLE_FEATURE_IFUPDOWN_EXTERNAL_DHCPC */
#if ENABLE_FEATURE_IFUPDOWN_EXTERNAL_DHCP
-static int dhcp_up(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC dhcp_up(struct interface_defn_t *ifd, execfn *exec)
{
unsigned i;
#if ENABLE_FEATURE_IFUPDOWN_IP
bb_error_msg("no dhcp clients found");
return 0;
}
-#elif ENABLE_APP_UDHCPC
-static int dhcp_up(struct interface_defn_t *ifd, execfn *exec)
+#elif ENABLE_UDHCPC
+static int FAST_FUNC dhcp_up(struct interface_defn_t *ifd, execfn *exec)
{
#if ENABLE_FEATURE_IFUPDOWN_IP
/* ip doesn't up iface when it configures it (unlike ifconfig) */
ifd, exec);
}
#else
-static int dhcp_up(struct interface_defn_t *ifd UNUSED_PARAM,
+static int FAST_FUNC dhcp_up(struct interface_defn_t *ifd UNUSED_PARAM,
execfn *exec UNUSED_PARAM)
{
return 0; /* no dhcp support */
#endif
#if ENABLE_FEATURE_IFUPDOWN_EXTERNAL_DHCP
-static int dhcp_down(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC dhcp_down(struct interface_defn_t *ifd, execfn *exec)
{
int result = 0;
unsigned i;
for (i = 0; i < ARRAY_SIZE(ext_dhcp_clients); i++) {
if (exists_execable(ext_dhcp_clients[i].name)) {
- result += execute(ext_dhcp_clients[i].stopcmd, ifd, exec);
+ result = execute(ext_dhcp_clients[i].stopcmd, ifd, exec);
if (result)
break;
}
result += static_down(ifd, exec);
return ((result == 3) ? 3 : 0);
}
-#elif ENABLE_APP_UDHCPC
-static int dhcp_down(struct interface_defn_t *ifd, execfn *exec)
+#elif ENABLE_UDHCPC
+static int FAST_FUNC dhcp_down(struct interface_defn_t *ifd, execfn *exec)
{
int result;
result = execute("kill "
return ((result == 3) ? 3 : 0);
}
#else
-static int dhcp_down(struct interface_defn_t *ifd UNUSED_PARAM,
+static int FAST_FUNC dhcp_down(struct interface_defn_t *ifd UNUSED_PARAM,
execfn *exec UNUSED_PARAM)
{
return 0; /* no dhcp support */
}
#endif
-static int manual_up_down(struct interface_defn_t *ifd UNUSED_PARAM, execfn *exec UNUSED_PARAM)
+static int FAST_FUNC manual_up_down(struct interface_defn_t *ifd UNUSED_PARAM, execfn *exec UNUSED_PARAM)
{
return 1;
}
-static int bootp_up(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC bootp_up(struct interface_defn_t *ifd, execfn *exec)
{
return execute("bootpc[[ --bootfile %bootfile%]] --dev %iface%"
"[[ --server %server%]][[ --hwaddr %hwaddr%]]"
" --returniffail --serverbcast", ifd, exec);
}
-static int ppp_up(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC ppp_up(struct interface_defn_t *ifd, execfn *exec)
{
return execute("pon[[ %provider%]]", ifd, exec);
}
-static int ppp_down(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC ppp_down(struct interface_defn_t *ifd, execfn *exec)
{
return execute("poff[[ %provider%]]", ifd, exec);
}
-static int wvdial_up(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC wvdial_up(struct interface_defn_t *ifd, execfn *exec)
{
return execute("start-stop-daemon --start -x wvdial "
"-p /var/run/wvdial.%iface% -b -m --[[ %provider%]]", ifd, exec);
}
-static int wvdial_down(struct interface_defn_t *ifd, execfn *exec)
+static int FAST_FUNC wvdial_down(struct interface_defn_t *ifd, execfn *exec)
{
return execute("start-stop-daemon --stop -x wvdial "
"-p /var/run/wvdial.%iface% -s 2", ifd, exec);
}
static const struct method_t methods[] = {
- { "manual", manual_up_down, manual_up_down, },
- { "wvdial", wvdial_up, wvdial_down, },
- { "ppp", ppp_up, ppp_down, },
- { "static", static_up, static_down, },
- { "bootp", bootp_up, static_down, },
- { "dhcp", dhcp_up, dhcp_down, },
- { "loopback", loopback_up, loopback_down, },
+ { "manual" , manual_up_down, manual_up_down, },
+ { "wvdial" , wvdial_up , wvdial_down , },
+ { "ppp" , ppp_up , ppp_down , },
+ { "static" , static_up , static_down , },
+ { "bootp" , bootp_up , static_down , },
+ { "dhcp" , dhcp_up , dhcp_down , },
+ { "loopback", loopback_up , loopback_down , },
};
static const struct address_family_t addr_inet = {
#endif /* if ENABLE_FEATURE_IFUPDOWN_IPV4 */
+/* Returns pointer to the next word, or NULL.
+ * In 1st case, advances *buf to the word after this one.
+ */
static char *next_word(char **buf)
{
unsigned length;
if (word[length] != '\0')
word[length++] = '\0';
- *buf = word + length;
+ *buf = skip_whitespace(word + length);
return word;
}
static char *setlocalenv(const char *format, const char *name, const char *value)
{
char *result;
- char *here;
- char *there;
+ char *dst;
+ char *src;
+ char c;
result = xasprintf(format, name, value);
- for (here = there = result; *there != '=' && *there; there++) {
- if (*there == '-')
- *there = '_';
- if (isalpha(*there))
- *there = toupper(*there);
-
- if (isalnum(*there) || *there == '_') {
- *here = *there;
- here++;
- }
+ for (dst = src = result; (c = *src) != '=' && c; src++) {
+ if (c == '-')
+ c = '_';
+ if (c >= 'a' && c <= 'z')
+ c -= ('a' - 'A');
+ if (isalnum(c) || c == '_')
+ *dst++ = c;
}
- memmove(here, there, strlen(there) + 1);
+ overlapping_strcpy(dst, src);
return result;
}
static void set_environ(struct interface_defn_t *iface, const char *mode)
{
- char **environend;
int i;
- const int n_env_entries = iface->n_options + 5;
- char **ppch;
+ char **pp;
- if (my_environ != NULL) {
- for (ppch = my_environ; *ppch; ppch++) {
- free(*ppch);
- *ppch = NULL;
+ if (G.my_environ != NULL) {
+ for (pp = G.my_environ; *pp; pp++) {
+ free(*pp);
}
- free(my_environ);
+ free(G.my_environ);
}
- my_environ = xzalloc(sizeof(char *) * (n_env_entries + 1 /* for final NULL */ ));
- environend = my_environ;
+
+ /* note: last element will stay NULL: */
+ G.my_environ = xzalloc(sizeof(char *) * (iface->n_options + 6));
+ pp = G.my_environ;
for (i = 0; i < iface->n_options; i++) {
if (strcmp(iface->option[i].name, "up") == 0
) {
continue;
}
- *(environend++) = setlocalenv("IF_%s=%s", iface->option[i].name, iface->option[i].value);
+ *pp++ = setlocalenv("IF_%s=%s", iface->option[i].name, iface->option[i].value);
}
- *(environend++) = setlocalenv("%s=%s", "IFACE", iface->iface);
- *(environend++) = setlocalenv("%s=%s", "ADDRFAM", iface->address_family->name);
- *(environend++) = setlocalenv("%s=%s", "METHOD", iface->method->name);
- *(environend++) = setlocalenv("%s=%s", "MODE", mode);
- *(environend++) = setlocalenv("%s=%s", "PATH", startup_PATH);
+ *pp++ = setlocalenv("%s=%s", "IFACE", iface->iface);
+ *pp++ = setlocalenv("%s=%s", "ADDRFAM", iface->address_family->name);
+ *pp++ = setlocalenv("%s=%s", "METHOD", iface->method->name);
+ *pp++ = setlocalenv("%s=%s", "MODE", mode);
+ if (G.startup_PATH)
+ *pp++ = setlocalenv("%s=%s", "PATH", G.startup_PATH);
}
static int doit(char *str)
pid_t child;
int status;
- fflush(NULL);
+ fflush_all();
child = vfork();
switch (child) {
case -1: /* failure */
return 0;
case 0: /* child */
- execle(DEFAULT_SHELL, DEFAULT_SHELL, "-c", str, (char *) NULL, my_environ);
+ execle(DEFAULT_SHELL, DEFAULT_SHELL, "-c", str, (char *) NULL, G.my_environ);
_exit(127);
}
safe_waitpid(child, &status, 0);
xpiped_pair(infd);
xpiped_pair(outfd);
- fflush(NULL);
+ fflush_all();
pid = vfork();
switch (pid) {
/* parent */
close(infd.rd);
close(outfd.wr);
- *in = fdopen(infd.wr, "w");
- *out = fdopen(outfd.rd, "r");
+ *in = xfdopen_for_write(infd.wr);
+ *out = xfdopen_for_read(outfd.rd);
return pid;
}
const char *interfaces = "/etc/network/interfaces";
bool any_failures = 0;
+ INIT_G();
+
+ G.startup_PATH = getenv("PATH");
+
cmds = iface_down;
if (applet_name[2] == 'u') {
/* ifup command */
defn = read_interfaces(interfaces);
debug_noise("\ndone reading %s\n\n", interfaces);
- startup_PATH = getenv("PATH");
- if (!startup_PATH) startup_PATH = "";
-
/* Create a list of interfaces to work on */
if (DO_ALL) {
target_list = defn->autointerfaces;
projects / oweals / busybox.git / blobdiff