X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/4166458a2a6c4b779bc238ee3d2e555cee1bc416..a8abce5c5e2dce2ba6dbccd5d3829da104b80f9c:/print-zeromq.c diff --git a/print-zeromq.c b/print-zeromq.c index 004750ba..6e5e9dc8 100644 --- a/print-zeromq.c +++ b/print-zeromq.c @@ -28,15 +28,14 @@ /* \summary: ZeroMQ Message Transport Protocol (ZMTP) printer */ #ifdef HAVE_CONFIG_H -#include "config.h" +#include #endif -#include +#include "netdissect-stdinc.h" #include "netdissect.h" #include "extract.h" -static const char tstr[] = " [|zmtp1]"; /* Maximum number of ZMTP/1.0 frame body bytes (without the flags) to dump in * hex and ASCII under a single "-v" flag. @@ -79,34 +78,34 @@ zmtp1_print_frame(netdissect_options *ndo, const u_char *cp, const u_char *ep) uint64_t body_len_declared, body_len_captured, header_len; uint8_t flags; - ND_PRINT((ndo, "\n\t")); + ND_PRINT("\n\t"); ND_TCHECK_1(cp); /* length/0xFF */ if (EXTRACT_U_1(cp) != 0xFF) { header_len = 1; /* length */ - body_len_declared = cp[0]; - ND_PRINT((ndo, " frame flags+body (8-bit) length %" PRIu64, body_len_declared)); + body_len_declared = EXTRACT_U_1(cp); + ND_PRINT(" frame flags+body (8-bit) length %" PRIu64, body_len_declared); } else { header_len = 1 + 8; /* 0xFF, length */ - ND_PRINT((ndo, " frame flags+body (64-bit) length")); - ND_TCHECK2(*cp, header_len); /* 0xFF, length */ + ND_PRINT(" frame flags+body (64-bit) length"); + ND_TCHECK_LEN(cp, header_len); /* 0xFF, length */ body_len_declared = EXTRACT_BE_U_8(cp + 1); - ND_PRINT((ndo, " %" PRIu64, body_len_declared)); + ND_PRINT(" %" PRIu64, body_len_declared); } if (body_len_declared == 0) return cp + header_len; /* skip to the next frame */ - ND_TCHECK2(*cp, header_len + 1); /* ..., flags */ - flags = cp[header_len]; + ND_TCHECK_LEN(cp, header_len + 1); /* ..., flags */ + flags = EXTRACT_U_1(cp + header_len); body_len_captured = ep - cp - header_len; if (body_len_declared > body_len_captured) - ND_PRINT((ndo, " (%" PRIu64 " captured)", body_len_captured)); - ND_PRINT((ndo, ", flags 0x%02x", flags)); + ND_PRINT(" (%" PRIu64 " captured)", body_len_captured); + ND_PRINT(", flags 0x%02x", flags); if (ndo->ndo_vflag) { uint64_t body_len_printed = min(body_len_captured, body_len_declared); - ND_PRINT((ndo, " (%s|%s|%s|%s|%s|%s|%s|%s)", + ND_PRINT(" (%s|%s|%s|%s|%s|%s|%s|%s)", flags & 0x80 ? "MBZ" : "-", flags & 0x40 ? "MBZ" : "-", flags & 0x20 ? "MBZ" : "-", @@ -114,29 +113,29 @@ zmtp1_print_frame(netdissect_options *ndo, const u_char *cp, const u_char *ep) flags & 0x08 ? "MBZ" : "-", flags & 0x04 ? "MBZ" : "-", flags & 0x02 ? "MBZ" : "-", - flags & 0x01 ? "MORE" : "-")); + flags & 0x01 ? "MORE" : "-"); if (ndo->ndo_vflag == 1) body_len_printed = min(VBYTES + 1, body_len_printed); if (body_len_printed > 1) { - ND_PRINT((ndo, ", first %" PRIu64 " byte(s) of body:", body_len_printed - 1)); + ND_PRINT(", first %" PRIu64 " byte(s) of body:", body_len_printed - 1); hex_and_ascii_print(ndo, "\n\t ", cp + header_len + 1, body_len_printed - 1); - ND_PRINT((ndo, "\n")); + ND_PRINT("\n"); } } /* * Do not advance cp by the sum of header_len and body_len_declared - * before each offset has successfully passed ND_TCHECK2() as the + * before each offset has successfully passed ND_TCHECK_LEN() as the * sum can roll over (9 + 0xfffffffffffffff7 = 0) and cause an * infinite loop. */ cp += header_len; - ND_TCHECK2(*cp, body_len_declared); /* Next frame within the buffer ? */ + ND_TCHECK_LEN(cp, body_len_declared); /* Next frame within the buffer ? */ return cp + body_len_declared; trunc: - ND_PRINT((ndo, "%s", tstr)); + nd_print_trunc(ndo); return ep; } @@ -145,7 +144,8 @@ zmtp1_print(netdissect_options *ndo, const u_char *cp, u_int len) { const u_char *ep = min(ndo->ndo_snapend, cp + len); - ND_PRINT((ndo, ": ZMTP/1.0")); + ndo->ndo_protocol = "zmtp1"; + ND_PRINT(": ZMTP/1.0"); while (cp < ep) cp = zmtp1_print_frame(ndo, cp, ep); } @@ -174,38 +174,38 @@ zmtp1_print_intermediate_part(netdissect_options *ndo, const u_char *cp, const u ND_TCHECK_2(cp); frame_offset = EXTRACT_BE_U_2(cp); - ND_PRINT((ndo, "\n\t frame offset 0x%04x", frame_offset)); + ND_PRINT("\n\t frame offset 0x%04x", frame_offset); cp += 2; remaining_len = ndo->ndo_snapend - cp; /* without the frame length */ if (frame_offset == 0xFFFF) frame_offset = len - 2; /* always within the declared length */ else if (2 + frame_offset > len) { - ND_PRINT((ndo, " (exceeds datagram declared length)")); + ND_PRINT(" (exceeds datagram declared length)"); goto trunc; } /* offset within declared length of the datagram */ if (frame_offset) { - ND_PRINT((ndo, "\n\t frame intermediate part, %u bytes", frame_offset)); + ND_PRINT("\n\t frame intermediate part, %u bytes", frame_offset); if (frame_offset > remaining_len) - ND_PRINT((ndo, " (%"PRIu64" captured)", remaining_len)); + ND_PRINT(" (%"PRIu64" captured)", remaining_len); if (ndo->ndo_vflag) { uint64_t len_printed = min(frame_offset, remaining_len); if (ndo->ndo_vflag == 1) len_printed = min(VBYTES, len_printed); if (len_printed > 1) { - ND_PRINT((ndo, ", first %"PRIu64" byte(s):", len_printed)); + ND_PRINT(", first %"PRIu64" byte(s):", len_printed); hex_and_ascii_print(ndo, "\n\t ", cp, len_printed); - ND_PRINT((ndo, "\n")); + ND_PRINT("\n"); } } } return cp + frame_offset; trunc: - ND_PRINT((ndo, "%s", tstr)); + nd_print_trunc(ndo); return cp + len; } @@ -214,6 +214,7 @@ zmtp1_datagram_print(netdissect_options *ndo, const u_char *cp, const u_int len) { const u_char *ep = min(ndo->ndo_snapend, cp + len); + ndo->ndo_protocol = "zmtp1"; cp = zmtp1_print_intermediate_part(ndo, cp, len); while (cp < ep) cp = zmtp1_print_frame(ndo, cp, ep);