version 1.1.1.1.2.5, 2011/10/13 11:01:37
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version 1.1.1.1.2.7, 2011/10/13 15:24:17
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Line 60 PrepareL2(const char *psDev, int *bpflen)
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Line 60 PrepareL2(const char *psDev, int *bpflen)
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close(h); |
close(h); |
return -1; |
return -1; |
} |
} |
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n = USHRT_MAX + 1; |
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if (ioctl(h, BIOCSBLEN, &n) == -1) { |
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printf("Error:: set buffer interface %s buffer length #%d - %s\n", psDev, errno, strerror(errno)); |
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close(h); |
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return -1; |
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} |
strlcpy(ifr.ifr_name, psDev, sizeof ifr.ifr_name); |
strlcpy(ifr.ifr_name, psDev, sizeof ifr.ifr_name); |
if (ioctl(h, BIOCSETIF, &ifr) == -1) { |
if (ioctl(h, BIOCSETIF, &ifr) == -1) { |
printf("Error:: bind interface %s to bpf #%d - %s\n", psDev, errno, strerror(errno)); |
printf("Error:: bind interface %s to bpf #%d - %s\n", psDev, errno, strerror(errno)); |
Line 72 PrepareL2(const char *psDev, int *bpflen)
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Line 78 PrepareL2(const char *psDev, int *bpflen)
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return -1; |
return -1; |
} |
} |
if (ioctl(h, BIOCGBLEN, bpflen) == -1) { |
if (ioctl(h, BIOCGBLEN, bpflen) == -1) { |
printf("Error:: get interface %s buffer length #%d - %s\n", psDev, errno, strerror(errno)); | printf("Error:: get buffer interface %s buffer length #%d - %s\n", psDev, errno, strerror(errno)); |
close(h); |
close(h); |
return -1; |
return -1; |
} |
} |
Line 121 PrepareL3(const struct sockaddr *sa, int *bpflen)
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Line 127 PrepareL3(const struct sockaddr *sa, int *bpflen)
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} |
} |
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char |
char |
icmpRecv(int s, u_short * __restrict id, u_int * __restrict crypted, u_char * __restrict data, | icmpRecv(int s, u_int * __restrict seq, u_short * __restrict id, u_int * __restrict crypted, |
int * __restrict datlen, struct sockaddr *sa, socklen_t *salen) | u_char * __restrict data, int * __restrict datlen, struct sockaddr *sa, socklen_t *salen) |
{ |
{ |
int ret = 0; |
int ret = 0; |
struct icmp *icmp; |
struct icmp *icmp; |
Line 185 icmpRecv(int s, u_short * __restrict id, u_int * __res
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Line 191 icmpRecv(int s, u_short * __restrict id, u_int * __res
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memcpy(data, buf + sizeof(struct ip) + sizeof(struct icmp) + sizeof(struct ansh_hdr), *datlen); |
memcpy(data, buf + sizeof(struct ip) + sizeof(struct icmp) + sizeof(struct ansh_hdr), *datlen); |
} |
} |
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if (seq) |
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*seq = ntohl(hdr->ansh_seq); |
if (id) |
if (id) |
*id = ntohs(icmp->icmp_id); |
*id = ntohs(icmp->icmp_id); |
return hdr->ansh_flg; |
return hdr->ansh_flg; |
} |
} |
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int |
int |
icmpSend(int s, u_short id, char flg, u_int crypted, u_char *data, int datlen, struct sockaddr *sa, socklen_t salen) | icmpSend(int s, u_int seq, u_short id, char flg, u_int crypted, u_char *data, int datlen, |
| struct sockaddr *sa, socklen_t salen) |
{ |
{ |
u_char *pos, buf[USHRT_MAX] = { 0 }; |
u_char *pos, buf[USHRT_MAX] = { 0 }; |
struct icmp *icmp; |
struct icmp *icmp; |
Line 212 icmpSend(int s, u_short id, char flg, u_int crypted, u
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Line 221 icmpSend(int s, u_short id, char flg, u_int crypted, u
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hdr->ansh_flg = flg; |
hdr->ansh_flg = flg; |
hdr->ansh_len = htons(datlen + sizeof(struct ansh_hdr)); |
hdr->ansh_len = htons(datlen + sizeof(struct ansh_hdr)); |
hdr->ansh_nonce = htonl(crypted); |
hdr->ansh_nonce = htonl(crypted); |
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hdr->ansh_seq = htonl(seq); |
hdr->ansh_crc = 0; |
hdr->ansh_crc = 0; |
hdr->ansh_crc = htonl(crcAdler((u_char*) hdr, ntohs(hdr->ansh_len))); |
hdr->ansh_crc = htonl(crcAdler((u_char*) hdr, ntohs(hdr->ansh_len))); |
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Line 238 icmpSend(int s, u_short id, char flg, u_int crypted, u
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Line 248 icmpSend(int s, u_short id, char flg, u_int crypted, u
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} |
} |
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static int |
static int |
_pkt_Send(int s, char flg, u_int crypted, u_char *data, int datlen, struct ether_addr *ea) | _pkt_Send(int s, u_int seq, char flg, u_int crypted, u_char *data, int datlen, struct ether_addr *ea) |
{ |
{ |
u_char *pos, buf[USHRT_MAX] = { 0 }; |
u_char *pos, buf[USHRT_MAX] = { 0 }; |
struct ether_header *e = (struct ether_header*) buf; |
struct ether_header *e = (struct ether_header*) buf; |
Line 260 _pkt_Send(int s, char flg, u_int crypted, u_char *data
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Line 270 _pkt_Send(int s, char flg, u_int crypted, u_char *data
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hdr->ansh_flg = flg; |
hdr->ansh_flg = flg; |
hdr->ansh_len = htons(datlen + sizeof(struct ansh_hdr)); |
hdr->ansh_len = htons(datlen + sizeof(struct ansh_hdr)); |
hdr->ansh_nonce = htonl(crypted); |
hdr->ansh_nonce = htonl(crypted); |
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hdr->ansh_seq = htonl(seq); |
hdr->ansh_crc = 0; |
hdr->ansh_crc = 0; |
hdr->ansh_crc = htonl(crcAdler((u_char*) hdr, ntohs(hdr->ansh_len))); |
hdr->ansh_crc = htonl(crcAdler((u_char*) hdr, ntohs(hdr->ansh_len))); |
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Line 278 _pkt_Send(int s, char flg, u_int crypted, u_char *data
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Line 289 _pkt_Send(int s, char flg, u_int crypted, u_char *data
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} |
} |
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int |
int |
pktSend(int s, char flg, u_int crypted, u_char *data, int datlen, struct ether_addr *ea) | pktSend(int s, u_int seq, char flg, u_int crypted, u_char *data, int datlen, struct ether_addr *ea) |
{ |
{ |
int wlen, ret = 0; |
int wlen, ret = 0; |
u_char *pos = data; |
u_char *pos = data; |
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while (datlen > -1) { |
while (datlen > -1) { |
wlen = _pkt_Send(s, flg, crypted, pos, (datlen > 512) ? 512 : datlen, ea); | wlen = _pkt_Send(s, seq, flg, crypted, pos, (datlen > 512) ? 512 : datlen, ea); |
if (wlen == -1) |
if (wlen == -1) |
return -1; |
return -1; |
else { |
else { |
Line 298 pktSend(int s, char flg, u_int crypted, u_char *data,
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Line 309 pktSend(int s, char flg, u_int crypted, u_char *data,
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} |
} |
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static char |
static char |
_pkt_Recv(u_char * __restrict buf, int rlen, u_int * __restrict crypted, | _pkt_Recv(u_char * __restrict buf, int rlen, u_int * __restrict seq, u_int * __restrict crypted, |
u_char * __restrict data, int * __restrict datlen, |
u_char * __restrict data, int * __restrict datlen, |
u_char ** __restrict next, int * __restrict nextlen) |
u_char ** __restrict next, int * __restrict nextlen) |
{ |
{ |
Line 357 _pkt_Recv(u_char * __restrict buf, int rlen, u_int * _
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Line 368 _pkt_Recv(u_char * __restrict buf, int rlen, u_int * _
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memcpy(data, buf + bpf->bh_hdrlen + ETHER_HDR_LEN + sizeof(struct ansh_hdr), *datlen); |
memcpy(data, buf + bpf->bh_hdrlen + ETHER_HDR_LEN + sizeof(struct ansh_hdr), *datlen); |
} |
} |
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if (seq) |
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*seq = ntohl(hdr->ansh_seq); |
return hdr->ansh_flg; |
return hdr->ansh_flg; |
} |
} |
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char |
char |
pktRecv(int s, u_int * __restrict crypted, u_char * __restrict data, int * __restrict datlen, | pktRecv(int s, u_int * __restrict seq, u_int * __restrict crypted, u_char * __restrict data, |
struct ether_header *eth) | int * __restrict datlen, struct ether_header *eth) |
{ |
{ |
u_char *buf, *next, *pos, *ptr; | u_char *buf, *next, *ptr, *pos = data; |
int nextlen, rlen, buflen, ptrlen; |
int nextlen, rlen, buflen, ptrlen; |
char flg; |
char flg; |
struct bpf_hdr *bpf; |
struct bpf_hdr *bpf; |
struct ether_header *e; |
struct ether_header *e; |
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if (!eth || !datlen) | if (!eth || !data || !datlen) |
return ANSH_FLG_ERR; |
return ANSH_FLG_ERR; |
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else |
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memset(data, 0, *datlen); |
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if (!(buf = malloc(*datlen))) { |
if (!(buf = malloc(*datlen))) { |
ERR("malloc() #%d - %s", errno, strerror(errno)); |
ERR("malloc() #%d - %s", errno, strerror(errno)); |
Line 399 pktRecv(int s, u_int * __restrict crypted, u_char * __
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Line 414 pktRecv(int s, u_int * __restrict crypted, u_char * __
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ptr = next = buf; |
ptr = next = buf; |
ptrlen = nextlen = rlen; |
ptrlen = nextlen = rlen; |
pos = data; | if ((flg = _pkt_Recv(ptr, ptrlen, seq, crypted, pos, &buflen, &next, &nextlen)) == -1) { |
buflen = *datlen; | |
if ((flg = _pkt_Recv(ptr, ptrlen, crypted, pos, &buflen, &next, &nextlen)) == -1) { | |
free(buf); |
free(buf); |
return ANSH_FLG_ERR; |
return ANSH_FLG_ERR; |
} else { |
} else { |
Line 410 pktRecv(int s, u_int * __restrict crypted, u_char * __
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Line 423 pktRecv(int s, u_int * __restrict crypted, u_char * __
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ptr = next; |
ptr = next; |
ptrlen = nextlen; |
ptrlen = nextlen; |
} |
} |
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/* get additional packets from buffer */ |
while (next && nextlen > 0) |
while (next && nextlen > 0) |
if (_pkt_Recv(ptr, ptrlen, crypted, pos, &buflen, &next, &nextlen) == -1) | if (_pkt_Recv(ptr, ptrlen, seq, crypted, pos, &buflen, &next, &nextlen) == -1) |
break; |
break; |
else { |
else { |
pos += buflen; |
pos += buflen; |
Line 421 pktRecv(int s, u_int * __restrict crypted, u_char * __
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Line 435 pktRecv(int s, u_int * __restrict crypted, u_char * __
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} |
} |
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free(buf); |
free(buf); |
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return flg; |
return flg; |
} |
} |
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