*/
/*
- * $Id: glue.c 4540 2009-12-16 17:22:47Z marta $
+ * $Id: glue.c 5881 2010-03-25 14:29:48Z svn_panicucci $
*
- * Userland functions missing in linux
+ * Userland functions missing in linux/Windows
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
+#ifdef _WIN32
+#include <netdb.h>
+#include <windows.h>
+#endif /* _WIN32 */
+
#ifndef HAVE_NAT
/* dummy nat functions */
void
int optreset; /* missing in linux */
#endif
-#if defined( __linux__ ) || defined(_WIN32)
/*
* not implemented in linux.
* taken from /usr/src/lib/libc/string/strlcpy.c
strtonum(const char *nptr, long long minval, long long maxval,
const char **errstr)
{
- return strtoll(nptr, (char **)errstr, 0);
+ long long ret;
+ int errno_c = errno; /* save actual errno */
+
+ errno = 0;
+#ifdef TCC
+ ret = strtol(nptr, (char **)errstr, 0);
+#else
+ ret = strtoll(nptr, (char **)errstr, 0);
+#endif
+ /* We accept only a string that represent exactly a number (ie. start
+ * and end with a digit).
+ * FreeBSD version wants errstr==NULL if no error occurs, otherwise
+ * errstr should point to an error string.
+ * For our purspose, we implement only the invalid error, ranges
+ * error aren't checked
+ */
+ if (errno != 0 || nptr == *errstr || **errstr != '\0')
+ *errstr = "invalid";
+ else {
+ *errstr = NULL;
+ errno = errno_c;
+ }
+ return ret;
}
+#if defined (_WIN32) || defined (EMULATE_SYSCTL)
+//XXX missing prerequisites
+#include <net/if.h> //openwrt
+#include <netinet/ip.h> //openwrt
+#include <netinet/ip_fw.h>
+#include <netinet/ip_dummynet.h>
+#endif
+
/*
* set or get system information
* XXX lock acquisition/serialize calls
sysctlbyname(const char *name, void *oldp, size_t *oldlenp, void *newp,
size_t newlen)
{
+#if defined (_WIN32) || defined (EMULATE_SYSCTL)
+ /*
+ * we embed the sysctl request in the usual sockopt mechanics.
+ * the sockopt buffer il filled with a dn_id with IP_DUMMYNET3
+ * command, and the special DN_SYSCTL_GET and DN_SYSCTL_SET
+ * subcommands.
+ * the syntax of this function is fully compatible with
+ * POSIX sysctlby name:
+ * if newp and newlen are != 0 => this is a set
+ * else if oldp and oldlen are != 0 => this is a get
+ * to avoid too much overhead in the module, the whole
+ * sysctltable is returned, and the parsing is done in userland,
+ * a probe request is done to retrieve the size needed to
+ * transfer the table, before the real request
+ * if both old and new params = 0 => this is a print
+ * this is a special request, done only by main()
+ * to implement the extension './ipfw sysctl',
+ * a command that bypasses the normal getopt, and that
+ * is available on those platforms that use this
+ * sysctl emulation.
+ * in this case, a negative oldlen signals that *oldp
+ * is actually a FILE* to print somewhere else than stdout
+ */
+
+ int l;
+ int ret;
+ struct dn_id* oid;
+ struct sysctlhead* entry;
+ char* pstring;
+ char* pdata;
+ FILE* fp;
+
+ if((oldlenp != NULL) && (*oldlenp < 0))
+ fp = (FILE*)oldp;
+ else
+ fp = stdout;
+ if(newp != NULL && newlen != 0)
+ {
+ //this is a set
+ l = sizeof(struct dn_id) + sizeof(struct sysctlhead) + strlen(name)+1 + newlen;
+ oid = malloc(l);
+ if (oid == NULL)
+ return -1;
+ oid->len = l;
+ oid->type = DN_SYSCTL_SET;
+ oid->id = DN_API_VERSION;
+
+ entry = (struct sysctlhead*)(oid+1);
+ pdata = (unsigned char*)(entry+1);
+ pstring = pdata + newlen;
+
+ entry->blocklen = ((sizeof(struct sysctlhead) + strlen(name)+1 + newlen) + 3) & ~3;
+ entry->namelen = strlen(name)+1;
+ entry->flags = 0;
+ entry->datalen = newlen;
+
+ bcopy(newp, pdata, newlen);
+ bcopy(name, pstring, strlen(name)+1);
+
+ ret = do_cmd(IP_DUMMYNET3, oid, (uintptr_t)l);
+ if (ret != 0)
+ return -1;
+ }
+ else
+ {
+ //this is a get or a print
+ l = sizeof(struct dn_id);
+ oid = malloc(l);
+ if (oid == NULL)
+ return -1;
+ oid->len = l;
+ oid->type = DN_SYSCTL_GET;
+ oid->id = DN_API_VERSION;
+
+ ret = do_cmd(-IP_DUMMYNET3, oid, (uintptr_t)&l);
+ if (ret != 0)
+ return -1;
+
+ l=oid->id;
+ free(oid);
+ oid = malloc(l);
+ if (oid == NULL)
+ return -1;
+ oid->len = l;
+ oid->type = DN_SYSCTL_GET;
+ oid->id = DN_API_VERSION;
+
+ ret = do_cmd(-IP_DUMMYNET3, oid, (uintptr_t)&l);
+ if (ret != 0)
+ return -1;
+
+ entry = (struct sysctlhead*)(oid+1);
+ while(entry->blocklen != 0)
+ {
+ pdata = (unsigned char*)(entry+1);
+ pstring = pdata+entry->datalen;
+
+ //time to check if this is a get or a print
+ if(name != NULL && oldp != NULL && *oldlenp > 0)
+ {
+ //this is a get
+ if(strcmp(name,pstring) == 0)
+ {
+ //match found, sanity chech on len
+ if(*oldlenp < entry->datalen)
+ {
+ printf("%s error: buffer too small\n",__FUNCTION__);
+ return -1;
+ }
+ *oldlenp = entry->datalen;
+ bcopy(pdata, oldp, *oldlenp);
+ return 0;
+ }
+ }
+ else
+ {
+ //this is a print
+ if( name == NULL )
+ goto print;
+ if ( (strncmp(pstring,name,strlen(name)) == 0) && ( pstring[strlen(name)]=='\0' || pstring[strlen(name)]=='.' ) )
+ goto print;
+ else
+ goto skip;
+print:
+ fprintf(fp, "%s: ",pstring);
+ switch( entry->flags >> 2 )
+ {
+ case SYSCTLTYPE_LONG:
+ fprintf(fp, "%li ", *(long*)(pdata));
+ break;
+ case SYSCTLTYPE_UINT:
+ fprintf(fp, "%u ", *(unsigned int*)(pdata));
+ break;
+ case SYSCTLTYPE_ULONG:
+ fprintf(fp, "%lu ", *(unsigned long*)(pdata));
+ break;
+ case SYSCTLTYPE_INT:
+ default:
+ fprintf(fp, "%i ", *(int*)(pdata));
+ }
+ if( (entry->flags & 0x00000003) == CTLFLAG_RD )
+ fprintf(fp, "\t(read only)\n");
+ else
+ fprintf(fp, "\n");
+skip: ;
+ }
+ entry = (struct sysctlhead*)((unsigned char*)entry + entry->blocklen);
+ }
+ free(oid);
+ return 0;
+ }
+ //fallback for invalid options
+ return -1;
+
+#else /* __linux__ */
FILE *fp;
char *basename = "/sys/module/ipfw_mod/parameters/";
char filename[256]; /* full filename */
}
return ret;
+#endif /* __linux__ */
+}
+
+#ifdef _WIN32
+/*
+ * On windows, set/getsockopt are mapped to DeviceIoControl()
+ */
+int
+wnd_setsockopt(int s, int level, int sopt_name, const void *optval,
+ socklen_t optlen)
+{
+ size_t len = sizeof (struct sockopt) + optlen;
+ struct sockopt *sock;
+ DWORD n;
+ BOOL result;
+ HANDLE _dev_h = (HANDLE)s;
+
+ /* allocate a data structure for communication */
+ sock = malloc(len);
+ if (sock == NULL)
+ return -1;
+
+ sock->sopt_dir = SOPT_SET;
+ sock->sopt_name = sopt_name;
+ sock->sopt_valsize = optlen;
+ sock->sopt_val = (void *)(sock+1);
+
+ memcpy(sock->sopt_val, optval, optlen);
+ result = DeviceIoControl (_dev_h, IP_FW_SETSOCKOPT, sock, len,
+ NULL, 0, &n, NULL);
+ free (sock);
+
+ return (result ? 0 : -1);
}
-#endif /* __linux__ || _WIN32 */
+
+int
+wnd_getsockopt(int s, int level, int sopt_name, void *optval,
+ socklen_t *optlen)
+{
+ size_t len = sizeof (struct sockopt) + *optlen;
+ struct sockopt *sock;
+ DWORD n;
+ BOOL result;
+ HANDLE _dev_h = (HANDLE)s;
+
+ sock = malloc(len);
+ if (sock == NULL)
+ return -1;
+
+ sock->sopt_dir = SOPT_GET;
+ sock->sopt_name = sopt_name;
+ sock->sopt_valsize = *optlen;
+ sock->sopt_val = (void *)(sock+1);
+
+ memcpy (sock->sopt_val, optval, *optlen);
+
+ result = DeviceIoControl (_dev_h, IP_FW_GETSOCKOPT, sock, len,
+ sock, len, &n, NULL);
+ //printf("len = %i, returned = %u, valsize = %i\n",len,n,sock->sopt_valsize);
+ *optlen = sock->sopt_valsize;
+ memcpy (optval, sock->sopt_val, *optlen);
+ free (sock);
+ return (result ? 0 : -1);
+}
+
+int
+my_socket(int domain, int ty, int proto)
+{
+ TCHAR *pcCommPort = TEXT("\\\\.\\Ipfw");
+ HANDLE _dev_h = INVALID_HANDLE_VALUE;
+
+ /* Special Handling For Accessing Device On Windows 2000 Terminal Server
+ See Microsoft KB Article 259131 */
+ if (_dev_h == INVALID_HANDLE_VALUE) {
+ _dev_h = CreateFile (pcCommPort,
+ GENERIC_READ | GENERIC_WRITE,
+ 0, NULL,
+ OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+ }
+ if (_dev_h == INVALID_HANDLE_VALUE) {
+ printf("%s failed %u, cannot talk to kernel module\n",
+ __FUNCTION__, (unsigned)GetLastError());
+ return -1;
+ }
+ return (int)_dev_h;
+}
+
+struct hostent* gethostbyname2(const char *name, int af)
+{
+ return gethostbyname(name);
+}
+
+struct ether_addr* ether_aton(const char *a)
+{
+ fprintf(stderr, "%s empty\n", __FUNCTION__);
+ return NULL;
+}
+
+#ifdef TCC
+int opterr = 1, /* if error message should be printed */
+ optind = 1, /* index into parent argv vector */
+ optopt, /* character checked for validity */
+ optreset; /* reset getopt */
+char *optarg; /* argument associated with option */
+
+#define BADCH (int)'?'
+#define BADARG (int)':'
+#define EMSG ""
+
+#define PROGNAME "ipfw"
+/*
+ * getopt --
+ * Parse argc/argv argument vector.
+ */
+int
+getopt(nargc, nargv, ostr)
+ int nargc;
+ char * const nargv[];
+ const char *ostr;
+{
+ static char *place = EMSG; /* option letter processing */
+ char *oli; /* option letter list index */
+
+ if (optreset || *place == 0) { /* update scanning pointer */
+ optreset = 0;
+ place = nargv[optind];
+ if (optind >= nargc || *place++ != '-') {
+ /* Argument is absent or is not an option */
+ place = EMSG;
+ return (-1);
+ }
+ optopt = *place++;
+ if (optopt == '-' && *place == 0) {
+ /* "--" => end of options */
+ ++optind;
+ place = EMSG;
+ return (-1);
+ }
+ if (optopt == 0) {
+ /* Solitary '-', treat as a '-' option
+ if the program (eg su) is looking for it. */
+ place = EMSG;
+ if (strchr(ostr, '-') == NULL)
+ return (-1);
+ optopt = '-';
+ }
+ } else
+ optopt = *place++;
+
+ /* See if option letter is one the caller wanted... */
+ if (optopt == ':' || (oli = strchr(ostr, optopt)) == NULL) {
+ if (*place == 0)
+ ++optind;
+ if (opterr && *ostr != ':')
+ (void)fprintf(stderr,
+ "%s: illegal option -- %c\n", PROGNAME,
+ optopt);
+ return (BADCH);
+ }
+
+ /* Does this option need an argument? */
+ if (oli[1] != ':') {
+ /* don't need argument */
+ optarg = NULL;
+ if (*place == 0)
+ ++optind;
+ } else {
+ /* Option-argument is either the rest of this argument or the
+ entire next argument. */
+ if (*place)
+ optarg = place;
+ else if (nargc > ++optind)
+ optarg = nargv[optind];
+ else {
+ /* option-argument absent */
+ place = EMSG;
+ if (*ostr == ':')
+ return (BADARG);
+ if (opterr)
+ (void)fprintf(stderr,
+ "%s: option requires an argument -- %c\n",
+ PROGNAME, optopt);
+ return (BADCH);
+ }
+ place = EMSG;
+ ++optind;
+ }
+ return (optopt); /* return option letter */
+}
+
+//static FILE *err_file = stderr;
+void
+verrx(int ex, int eval, const char *fmt, va_list ap)
+{
+ fprintf(stderr, "%s: ", PROGNAME);
+ if (fmt != NULL)
+ vfprintf(stderr, fmt, ap);
+ fprintf(stderr, "\n");
+ if (ex)
+ exit(eval);
+}
+void
+errx(int eval, const char *fmt, ...)
+{
+ va_list ap;
+ va_start(ap, fmt);
+ verrx(1, eval, fmt, ap);
+ va_end(ap);
+}
+
+void
+warnx(const char *fmt, ...)
+{
+ va_list ap;
+ va_start(ap, fmt);
+ verrx(0, 0, fmt, ap);
+ va_end(ap);
+}
+
+char *
+strsep(char **stringp, const char *delim)
+{
+ char *s;
+ const char *spanp;
+ int c, sc;
+ char *tok;
+
+ if ((s = *stringp) == NULL)
+ return (NULL);
+ for (tok = s;;) {
+ c = *s++;
+ spanp = delim;
+ do {
+ if ((sc = *spanp++) == c) {
+ if (c == 0)
+ s = NULL;
+ else
+ s[-1] = 0;
+ *stringp = s;
+ return (tok);
+ }
+ } while (sc != 0);
+ }
+ /* NOTREACHED */
+}
+
+static unsigned char
+tolower(unsigned char c)
+{
+ return (c >= 'A' && c <= 'Z') ? c + 'a' - 'A' : c;
+}
+
+static int isdigit(unsigned char c)
+{
+ return (c >= '0' && c <= '9');
+}
+
+static int isxdigit(unsigned char c)
+{
+ return (index("0123456789ABCDEFabcdef", c) ? 1 : 0);
+}
+
+static int isspace(unsigned char c)
+{
+ return (index(" \t\n\r", c) ? 1 : 0);
+}
+
+static int isascii(unsigned char c)
+{
+ return (c < 128);
+}
+
+static int islower(unsigned char c)
+{
+ return (c >= 'a' && c <= 'z');
+}
+
+int
+strcasecmp(const char *s1, const char *s2)
+{
+ const unsigned char
+ *us1 = (const unsigned char *)s1,
+ *us2 = (const unsigned char *)s2;
+
+ while (tolower(*us1) == tolower(*us2++))
+ if (*us1++ == '\0')
+ return (0);
+ return (tolower(*us1) - tolower(*--us2));
+}
+
+intmax_t
+strtoimax(const char * restrict nptr, char ** restrict endptr, int base)
+{
+ return strtol(nptr, endptr,base);
+}
+
+void
+setservent(int a)
+{
+}
+
+#define NS_INADDRSZ 128
+
+int
+inet_pton(int af, const char *src, void *dst)
+{
+ static const char digits[] = "0123456789";
+ int saw_digit, octets, ch;
+ u_char tmp[NS_INADDRSZ], *tp;
+
+ if (af != AF_INET) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ saw_digit = 0;
+ octets = 0;
+ *(tp = tmp) = 0;
+ while ((ch = *src++) != '\0') {
+ const char *pch;
+
+ if ((pch = strchr(digits, ch)) != NULL) {
+ u_int new = *tp * 10 + (pch - digits);
+
+ if (saw_digit && *tp == 0)
+ return (0);
+ if (new > 255)
+ return (0);
+ *tp = new;
+ if (!saw_digit) {
+ if (++octets > 4)
+ return (0);
+ saw_digit = 1;
+ }
+ } else if (ch == '.' && saw_digit) {
+ if (octets == 4)
+ return (0);
+ *++tp = 0;
+ saw_digit = 0;
+ } else
+ return (0);
+ }
+ if (octets < 4)
+ return (0);
+ memcpy(dst, tmp, NS_INADDRSZ);
+ return (1);
+}
+
+const char *
+inet_ntop(int af, const void *_src, char *dst, socklen_t size)
+{
+ static const char fmt[] = "%u.%u.%u.%u";
+ char tmp[sizeof "255.255.255.255"];
+ const u_char *src = _src;
+ int l;
+ if (af != AF_INET) {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ l = snprintf(tmp, sizeof(tmp), fmt, src[0], src[1], src[2], src[3]);
+ if (l <= 0 || (socklen_t) l >= size) {
+ errno = ENOSPC;
+ return (NULL);
+ }
+ strlcpy(dst, tmp, size);
+ return (dst);
+}
+
+/*%
+ * Check whether "cp" is a valid ascii representation
+ * of an Internet address and convert to a binary address.
+ * Returns 1 if the address is valid, 0 if not.
+ * This replaces inet_addr, the return value from which
+ * cannot distinguish between failure and a local broadcast address.
+ */
+int
+inet_aton(const char *cp, struct in_addr *addr) {
+ u_long val;
+ int base, n;
+ char c;
+ u_int8_t parts[4];
+ u_int8_t *pp = parts;
+ int digit;
+
+ c = *cp;
+ for (;;) {
+ /*
+ * Collect number up to ``.''.
+ * Values are specified as for C:
+ * 0x=hex, 0=octal, isdigit=decimal.
+ */
+ if (!isdigit((unsigned char)c))
+ return (0);
+ val = 0; base = 10; digit = 0;
+ if (c == '0') {
+ c = *++cp;
+ if (c == 'x' || c == 'X')
+ base = 16, c = *++cp;
+ else {
+ base = 8;
+ digit = 1 ;
+ }
+ }
+ for (;;) {
+ if (isascii(c) && isdigit((unsigned char)c)) {
+ if (base == 8 && (c == '8' || c == '9'))
+ return (0);
+ val = (val * base) + (c - '0');
+ c = *++cp;
+ digit = 1;
+ } else if (base == 16 && isascii(c) &&
+ isxdigit((unsigned char)c)) {
+ val = (val << 4) |
+ (c + 10 - (islower((unsigned char)c) ? 'a' : 'A'));
+ c = *++cp;
+ digit = 1;
+ } else
+ break;
+ }
+ if (c == '.') {
+ /*
+ * Internet format:
+ * a.b.c.d
+ * a.b.c (with c treated as 16 bits)
+ * a.b (with b treated as 24 bits)
+ */
+ if (pp >= parts + 3 || val > 0xffU)
+ return (0);
+ *pp++ = val;
+ c = *++cp;
+ } else
+ break;
+ }
+ /*
+ * Check for trailing characters.
+ */
+ if (c != '\0' && (!isascii(c) || !isspace((unsigned char)c)))
+ return (0);
+ /*
+ * Did we get a valid digit?
+ */
+ if (!digit)
+ return (0);
+ /*
+ * Concoct the address according to
+ * the number of parts specified.
+ */
+ n = pp - parts + 1;
+ switch (n) {
+ case 1: /*%< a -- 32 bits */
+ break;
+
+ case 2: /*%< a.b -- 8.24 bits */
+ if (val > 0xffffffU)
+ return (0);
+ val |= parts[0] << 24;
+ break;
+
+ case 3: /*%< a.b.c -- 8.8.16 bits */
+ if (val > 0xffffU)
+ return (0);
+ val |= (parts[0] << 24) | (parts[1] << 16);
+ break;
+
+ case 4: /*%< a.b.c.d -- 8.8.8.8 bits */
+ if (val > 0xffU)
+ return (0);
+ val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8);
+ break;
+ }
+ if (addr != NULL)
+ addr->s_addr = htonl(val);
+ return (1);
+}
+
+#endif /* TCC */
+
+#endif /* _WIN32 */
git://git.onelab.eu / ipfw.git / blobdiff