/* \summary: BOOTP and IPv4 DHCP printer */
#ifdef HAVE_CONFIG_H
-#include "config.h"
+#include <config.h>
#endif
-#include <netdissect-stdinc.h>
+#include "netdissect-stdinc.h"
#include <string.h>
#include "addrtoname.h"
#include "extract.h"
-static const char tstr[] = " [|bootp]";
/*
* Bootstrap Protocol (BOOTP). RFC951 and RFC1048.
nd_uint16_t bp_secs; /* seconds since boot began */
nd_uint16_t bp_flags; /* flags - see bootp_flag_values[]
in print-bootp.c */
- struct in_addr bp_ciaddr; /* client IP address */
- struct in_addr bp_yiaddr; /* 'your' IP address */
- struct in_addr bp_siaddr; /* server IP address */
- struct in_addr bp_giaddr; /* gateway IP address */
+ nd_ipv4 bp_ciaddr; /* client IP address */
+ nd_ipv4 bp_yiaddr; /* 'your' IP address */
+ nd_ipv4 bp_siaddr; /* server IP address */
+ nd_ipv4 bp_giaddr; /* gateway IP address */
nd_byte bp_chaddr[16]; /* client hardware address */
nd_byte bp_sname[64]; /* server host name */
nd_byte bp_file[128]; /* boot file name */
nd_byte bp_vend[64]; /* vendor-specific area */
-} UNALIGNED;
+};
#define BOOTPREPLY 2
#define BOOTPREQUEST 1
struct cmu_vend {
nd_byte v_magic[4]; /* magic number */
nd_uint32_t v_flags; /* flags/opcodes, etc. */
- struct in_addr v_smask; /* Subnet mask */
- struct in_addr v_dgate; /* Default gateway */
- struct in_addr v_dns1, v_dns2; /* Domain name servers */
- struct in_addr v_ins1, v_ins2; /* IEN-116 name servers */
- struct in_addr v_ts1, v_ts2; /* Time servers */
+ nd_ipv4 v_smask; /* Subnet mask */
+ nd_ipv4 v_dgate; /* Default gateway */
+ nd_ipv4 v_dns1, v_dns2; /* Domain name servers */
+ nd_ipv4 v_ins1, v_ins2; /* IEN-116 name servers */
+ nd_ipv4 v_ts1, v_ts2; /* Time servers */
nd_byte v_unused[24]; /* currently unused */
-} UNALIGNED;
+};
/* v_flags values */
static const u_char vm_rfc1048[4] = VM_RFC1048;
uint8_t bp_op, bp_htype, bp_hlen;
+ ndo->ndo_protocol = "bootp";
bp = (const struct bootp *)cp;
- ND_TCHECK(bp->bp_op);
+ ND_TCHECK_1(bp->bp_op);
bp_op = EXTRACT_U_1(bp->bp_op);
ND_PRINT("BOOTP/DHCP, %s",
tok2str(bootp_op_values, "unknown (0x%02x)", bp_op));
- ND_TCHECK(bp->bp_hlen);
+ ND_TCHECK_1(bp->bp_hlen);
bp_htype = EXTRACT_U_1(bp->bp_htype);
bp_hlen = EXTRACT_U_1(bp->bp_hlen);
if (bp_htype == 1 && bp_hlen == 6 && bp_op == BOOTPREQUEST) {
- ND_TCHECK_LEN(bp->bp_chaddr, 6);
+ ND_TCHECK_6(bp->bp_chaddr);
ND_PRINT(" from %s", etheraddr_string(ndo, bp->bp_chaddr));
}
if (!ndo->ndo_vflag)
return;
- ND_TCHECK(bp->bp_secs);
+ ND_TCHECK_2(bp->bp_secs);
/* The usual hardware address type is 1 (10Mb Ethernet) */
if (bp_htype != 1)
- ND_PRINT(", htype %d", bp_htype);
+ ND_PRINT(", htype %u", bp_htype);
/* The usual length for 10Mb Ethernet address is 6 bytes */
if (bp_htype != 1 || bp_hlen != 6)
- ND_PRINT(", hlen %d", bp_hlen);
+ ND_PRINT(", hlen %u", bp_hlen);
/* Only print interesting fields */
if (EXTRACT_U_1(bp->bp_hops))
- ND_PRINT(", hops %d", EXTRACT_U_1(bp->bp_hops));
+ ND_PRINT(", hops %u", EXTRACT_U_1(bp->bp_hops));
if (EXTRACT_BE_U_4(bp->bp_xid))
ND_PRINT(", xid 0x%x", EXTRACT_BE_U_4(bp->bp_xid));
if (EXTRACT_BE_U_2(bp->bp_secs))
- ND_PRINT(", secs %d", EXTRACT_BE_U_2(bp->bp_secs));
+ ND_PRINT(", secs %u", EXTRACT_BE_U_2(bp->bp_secs));
- ND_TCHECK(bp->bp_flags);
+ ND_TCHECK_2(bp->bp_flags);
ND_PRINT(", Flags [%s]",
bittok2str(bootp_flag_values, "none", EXTRACT_BE_U_2(bp->bp_flags)));
if (ndo->ndo_vflag > 1)
ND_PRINT(" (0x%04x)", EXTRACT_BE_U_2(bp->bp_flags));
/* Client's ip address */
- ND_TCHECK(bp->bp_ciaddr);
- if (EXTRACT_IPV4_TO_HOST_ORDER(&bp->bp_ciaddr.s_addr))
- ND_PRINT("\n\t Client-IP %s", ipaddr_string(ndo, &bp->bp_ciaddr));
+ ND_TCHECK_4(bp->bp_ciaddr);
+ if (EXTRACT_IPV4_TO_NETWORK_ORDER(bp->bp_ciaddr))
+ ND_PRINT("\n\t Client-IP %s", ipaddr_string(ndo, bp->bp_ciaddr));
/* 'your' ip address (bootp client) */
- ND_TCHECK(bp->bp_yiaddr);
- if (EXTRACT_IPV4_TO_HOST_ORDER(&bp->bp_yiaddr.s_addr))
- ND_PRINT("\n\t Your-IP %s", ipaddr_string(ndo, &bp->bp_yiaddr));
+ ND_TCHECK_4(bp->bp_yiaddr);
+ if (EXTRACT_IPV4_TO_NETWORK_ORDER(bp->bp_yiaddr))
+ ND_PRINT("\n\t Your-IP %s", ipaddr_string(ndo, bp->bp_yiaddr));
/* Server's ip address */
- ND_TCHECK(bp->bp_siaddr);
- if (EXTRACT_IPV4_TO_HOST_ORDER(&bp->bp_siaddr.s_addr))
- ND_PRINT("\n\t Server-IP %s", ipaddr_string(ndo, &bp->bp_siaddr));
+ ND_TCHECK_4(bp->bp_siaddr);
+ if (EXTRACT_IPV4_TO_NETWORK_ORDER(bp->bp_siaddr))
+ ND_PRINT("\n\t Server-IP %s", ipaddr_string(ndo, bp->bp_siaddr));
/* Gateway's ip address */
- ND_TCHECK(bp->bp_giaddr);
- if (EXTRACT_IPV4_TO_HOST_ORDER(&bp->bp_giaddr.s_addr))
- ND_PRINT("\n\t Gateway-IP %s", ipaddr_string(ndo, &bp->bp_giaddr));
+ ND_TCHECK_4(bp->bp_giaddr);
+ if (EXTRACT_IPV4_TO_NETWORK_ORDER(bp->bp_giaddr))
+ ND_PRINT("\n\t Gateway-IP %s", ipaddr_string(ndo, bp->bp_giaddr));
/* Client's Ethernet address */
if (bp_htype == 1 && bp_hlen == 6) {
- ND_TCHECK_LEN(bp->bp_chaddr, 6);
+ ND_TCHECK_6(bp->bp_chaddr);
ND_PRINT("\n\t Client-Ethernet-Address %s", etheraddr_string(ndo, bp->bp_chaddr));
}
ND_TCHECK_1(bp->bp_sname); /* check first char only */
if (EXTRACT_U_1(bp->bp_sname)) {
ND_PRINT("\n\t sname \"");
- if (fn_printztn(ndo, bp->bp_sname, (u_int)sizeof bp->bp_sname,
- ndo->ndo_snapend)) {
+ if (nd_printztn(ndo, bp->bp_sname, (u_int)sizeof(bp->bp_sname),
+ ndo->ndo_snapend) == 0) {
ND_PRINT("\"");
- ND_PRINT("%s", tstr + 1);
+ nd_print_trunc(ndo);
return;
}
ND_PRINT("\"");
ND_TCHECK_1(bp->bp_file); /* check first char only */
if (EXTRACT_U_1(bp->bp_file)) {
ND_PRINT("\n\t file \"");
- if (fn_printztn(ndo, bp->bp_file, (u_int)sizeof bp->bp_file,
- ndo->ndo_snapend)) {
+ if (nd_printztn(ndo, bp->bp_file, (u_int)sizeof(bp->bp_file),
+ ndo->ndo_snapend) == 0) {
ND_PRINT("\"");
- ND_PRINT("%s", tstr + 1);
+ nd_print_trunc(ndo);
return;
}
ND_PRINT("\"");
}
/* Decode the vendor buffer */
- ND_TCHECK_LEN(bp->bp_vend, 4);
+ ND_TCHECK_4(bp->bp_vend);
if (memcmp((const char *)bp->bp_vend, vm_rfc1048,
sizeof(uint32_t)) == 0)
rfc1048_print(ndo, bp->bp_vend);
return;
trunc:
- ND_PRINT("%s", tstr);
+ nd_print_trunc(ndo);
}
/*
* l - long (32 bits)
* L - unsigned long (32 bits)
* s - short (16 bits)
- * b - period-seperated decimal bytes (variable length)
- * x - colon-seperated hex bytes (variable length)
+ * b - period-separated decimal bytes (variable length)
+ * x - colon-separated hex bytes (variable length)
* a - ASCII string (variable length)
* B - on/off (8 bits)
* $ - special (explicit code to handle)
const char *cp;
char c;
int first, idx;
- uint32_t ul;
- uint16_t us;
- uint8_t uc, subopt, suboptlen;
+ uint8_t subopt, suboptlen;
ND_PRINT("\n\t Vendor-rfc1048 Extensions");
ND_PRINT(", occurs %u", ntag);
}
- if (!ND_TTEST_LEN(bp, len)) {
- ND_PRINT("[|rfc1048 %u]", len);
- return;
- }
+ ND_TCHECK_LEN(bp, len);
if (tag == TAG_DHCP_MESSAGE && len == 1) {
- uc = EXTRACT_U_1(bp);
+ ND_PRINT("%s", tok2str(dhcp_msg_values, "Unknown (%u)", EXTRACT_U_1(bp)));
bp++;
- ND_PRINT("%s", tok2str(dhcp_msg_values, "Unknown (%u)", uc));
continue;
}
if (tag == TAG_PARM_REQUEST) {
idx = 0;
- while (len-- > 0) {
- uc = EXTRACT_U_1(bp);
+ while (len > 0) {
+ cp = tok2str(tag2str, "?Option %u", EXTRACT_U_1(bp));
bp++;
- cp = tok2str(tag2str, "?Option %u", uc);
+ len--;
if (idx % 4 == 0)
ND_PRINT("\n\t ");
else
if (tag == TAG_EXTENDED_REQUEST) {
first = 1;
while (len > 1) {
- len -= 2;
- us = EXTRACT_BE_U_2(bp);
+ cp = tok2str(xtag2str, "?xT%u", EXTRACT_BE_U_2(bp));
bp += 2;
- cp = tok2str(xtag2str, "?xT%u", us);
+ len -= 2;
if (!first)
ND_PRINT("+");
ND_PRINT("%s", cp + 1);
case 'a':
/* ASCII strings */
ND_PRINT("\"");
- if (fn_printn(ndo, bp, len, ndo->ndo_snapend)) {
+ if (nd_printn(ndo, bp, len, ndo->ndo_snapend)) {
ND_PRINT("\"");
goto trunc;
}
case 'l':
case 'L':
/* ip addresses/32-bit words */
- while (len >= sizeof(ul)) {
+ while (len >= 4) {
if (!first)
ND_PRINT(",");
- ul = EXTRACT_BE_U_4(bp);
- if (c == 'i') {
- ul = htonl(ul);
- ND_PRINT("%s", ipaddr_string(ndo, &ul));
- } else if (c == 'L')
- ND_PRINT("%d", ul);
+ if (c == 'i')
+ ND_PRINT("%s", ipaddr_string(ndo, bp));
+ else if (c == 'L')
+ ND_PRINT("%d", EXTRACT_BE_S_4(bp));
else
- ND_PRINT("%u", ul);
- bp += sizeof(ul);
- len -= sizeof(ul);
+ ND_PRINT("%u", EXTRACT_BE_U_4(bp));
+ bp += 4;
+ len -= 4;
first = 0;
}
break;
case 'p':
/* IP address pairs */
- while (len >= 2*sizeof(ul)) {
+ while (len >= 2*4) {
if (!first)
ND_PRINT(",");
- memcpy((char *)&ul, (const char *)bp, sizeof(ul));
- ND_PRINT("(%s:", ipaddr_string(ndo, &ul));
- bp += sizeof(ul);
- memcpy((char *)&ul, (const char *)bp, sizeof(ul));
- ND_PRINT("%s)", ipaddr_string(ndo, &ul));
- bp += sizeof(ul);
- len -= 2*sizeof(ul);
+ ND_PRINT("(%s:", ipaddr_string(ndo, bp));
+ bp += 4;
+ len -= 4;
+ ND_PRINT("%s)", ipaddr_string(ndo, bp));
+ bp += 4;
+ len -= 4;
first = 0;
}
break;
case 's':
/* shorts */
- while (len >= sizeof(us)) {
+ while (len >= 2) {
if (!first)
ND_PRINT(",");
- us = EXTRACT_BE_U_2(bp);
- ND_PRINT("%u", us);
- bp += sizeof(us);
- len -= sizeof(us);
+ ND_PRINT("%u", EXTRACT_BE_U_2(bp));
+ bp += 2;
+ len -= 2;
first = 0;
}
break;
ND_PRINT("%u/%u ", EXTRACT_U_1(bp), EXTRACT_U_1(bp + 1));
bp += 2;
ND_PRINT("\"");
- if (fn_printn(ndo, bp, len - 3, ndo->ndo_snapend)) {
+ if (nd_printn(ndo, bp, len - 3, ndo->ndo_snapend)) {
ND_PRINT("\"");
goto trunc;
}
len--;
if (type == 0) {
ND_PRINT("\"");
- if (fn_printn(ndo, bp, len, ndo->ndo_snapend)) {
+ if (nd_printn(ndo, bp, len, ndo->ndo_snapend)) {
ND_PRINT("\"");
goto trunc;
}
case AGENT_SUBOPTION_CIRCUIT_ID: /* fall through */
case AGENT_SUBOPTION_REMOTE_ID:
case AGENT_SUBOPTION_SUBSCRIBER_ID:
- if (fn_printn(ndo, bp, suboptlen, ndo->ndo_snapend))
+ if (nd_printn(ndo, bp, suboptlen, ndo->ndo_snapend))
goto trunc;
break;
len--;
/* mask_width <= 32 */
if (mask_width > 32) {
- ND_PRINT("[ERROR: Mask width (%d) > 32]", mask_width);
+ ND_PRINT("[ERROR: Mask width (%u) > 32]", mask_width);
bp += len;
len = 0;
break;
for (i = 0; i < significant_octets ; i++) {
if (i > 0)
ND_PRINT(".");
- ND_PRINT("%d", EXTRACT_U_1(bp));
+ ND_PRINT("%u", EXTRACT_U_1(bp));
bp++;
}
for (i = significant_octets ; i < 4 ; i++)
ND_PRINT(".0");
- ND_PRINT("/%d", mask_width);
+ ND_PRINT("/%u", mask_width);
}
- memcpy((char *)&ul, (const char *)bp, sizeof(ul));
- ND_PRINT(":%s)", ipaddr_string(ndo, &ul));
- bp += sizeof(ul);
+ ND_PRINT(":%s)", ipaddr_string(ndo, bp));
+ bp += 4;
len -= (significant_octets + 4);
first = 0;
}
break;
}
ND_PRINT("\"");
- if (fn_printn(ndo, bp, suboptlen, ndo->ndo_snapend)) {
+ if (nd_printn(ndo, bp, suboptlen, ndo->ndo_snapend)) {
ND_PRINT("\"");
goto trunc;
}
ND_PRINT("\"");
- ND_PRINT(", length %d", suboptlen);
+ ND_PRINT(", length %u", suboptlen);
suboptnumber++;
len -= suboptlen;
bp += suboptlen;
}
return;
trunc:
- ND_PRINT("|[rfc1048]");
+ nd_print_trunc(ndo);
}
-#define PRINTCMUADDR(m, s) { ND_TCHECK(cmu->m); \
- if (cmu->m.s_addr != 0) \
- ND_PRINT(" %s:%s", s, ipaddr_string(ndo, &cmu->m.s_addr)); }
+#define PRINTCMUADDR(m, s) { ND_TCHECK_4(&cmu->m); \
+ if (EXTRACT_IPV4_TO_NETWORK_ORDER(cmu->m) != 0) \
+ ND_PRINT(" %s:%s", s, ipaddr_string(ndo, cmu->m)); }
static void
cmu_print(netdissect_options *ndo,
cmu = (const struct cmu_vend *)bp;
/* Only print if there are unknown bits */
- ND_TCHECK(cmu->v_flags);
+ ND_TCHECK_4(cmu->v_flags);
v_flags = EXTRACT_U_1(cmu->v_flags);
if ((v_flags & ~(VF_SMASK)) != 0)
ND_PRINT(" F:0x%x", v_flags);
return;
trunc:
- ND_PRINT("%s", tstr);
+ nd_print_trunc(ndo);
}
#undef PRINTCMUADDR
projects / tcpdump / blobdiff