X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/5663cdab5ec8730ade9938c1ace64a4859d9ef7b..2d861fb1a7677d1d2437e5e6d3e04a095a93b91f:/print-openflow.c diff --git a/print-openflow.c b/print-openflow.c index 9a675855..043adc2e 100644 --- a/print-openflow.c +++ b/print-openflow.c @@ -30,38 +30,60 @@ * POSSIBILITY OF SUCH DAMAGE. */ -#define NETDISSECT_REWORKED +/* \summary: version-independent OpenFlow printer */ + #ifdef HAVE_CONFIG_H #include "config.h" #endif -#include +#include -#include "interface.h" +#include "netdissect.h" #include "extract.h" #include "openflow.h" +#include "oui.h" static const char tstr[] = " [|openflow]"; -static const char cstr[] = " (corrupt)"; #define OF_VER_1_0 0x01 +const struct tok onf_exp_str[] = { + { ONF_EXP_ONF, "ONF Extensions" }, + { ONF_EXP_BUTE, "Budapest University of Technology and Economics" }, + { ONF_EXP_NOVIFLOW, "NoviFlow" }, + { ONF_EXP_L3, "L3+ Extensions, Vendor Neutral" }, + { ONF_EXP_L4L7, "L4-L7 Extensions" }, + { ONF_EXP_WMOB, "Wireless and Mobility Extensions" }, + { ONF_EXP_FABS, "Forwarding Abstractions Extensions" }, + { ONF_EXP_OTRANS, "Optical Transport Extensions" }, + { 0, NULL } +}; + +const char * +of_vendor_name(const uint32_t vendor) +{ + const struct tok *table = (vendor & 0xff000000) == 0 ? oui_values : onf_exp_str; + return tok2str(table, "unknown", vendor); +} + static void of_header_print(netdissect_options *ndo, const uint8_t version, const uint8_t type, - const uint16_t length, const uint32_t xid) { + const uint16_t length, const uint32_t xid) +{ ND_PRINT((ndo, "\n\tversion unknown (0x%02x), type 0x%02x, length %u, xid 0x%08x", version, type, length, xid)); } /* Print a single OpenFlow message. */ static const u_char * -of_header_body_print(netdissect_options *ndo, const u_char *cp, const u_char *ep) { +of_header_body_print(netdissect_options *ndo, const u_char *cp, const u_char *ep) +{ uint8_t version, type; uint16_t length; uint32_t xid; if (ep < cp + OF_HEADER_LEN) - goto corrupt; + goto invalid; /* version */ ND_TCHECK2(*cp, 1); version = *cp; @@ -85,7 +107,7 @@ of_header_body_print(netdissect_options *ndo, const u_char *cp, const u_char *ep * segment. */ if (length < OF_HEADER_LEN) { of_header_print(ndo, version, type, length, xid); - goto corrupt; + goto invalid; } /* Decode known protocol versions further without printing the header (the * type decoding is version-specific. */ @@ -98,8 +120,8 @@ of_header_body_print(netdissect_options *ndo, const u_char *cp, const u_char *ep return cp + length - OF_HEADER_LEN; /* done with current message */ } -corrupt: /* fail current packet */ - ND_PRINT((ndo, "%s", cstr)); +invalid: /* fail current packet */ + ND_PRINT((ndo, "%s", istr)); ND_TCHECK2(*cp, ep - cp); return ep; trunc: @@ -110,7 +132,8 @@ trunc: /* Print a TCP segment worth of OpenFlow messages presuming the segment begins * on a message boundary. */ void -openflow_print(netdissect_options *ndo, const u_char *cp, const u_int len) { +openflow_print(netdissect_options *ndo, const u_char *cp, const u_int len) +{ const u_char *ep = cp + len; ND_PRINT((ndo, ": OpenFlow"));