* derivatives without specific, written prior permission.
*/
+#include <config.h>
#include "ofp-print.h"
#include "xtoxll.h"
#include <stdlib.h>
#include <ctype.h>
-#include "ip.h"
-#include "mac.h"
#include "compiler.h"
+#include "dynamic-string.h"
+#include "flow.h"
+#include "ofpbuf.h"
+#include "openflow/openflow.h"
+#include "openflow/nicira-ext.h"
+#include "packets.h"
#include "util.h"
-#include "openflow.h"
-/* Dumps the contents of the Ethernet frame in the 'len' bytes starting at
- * 'data' to 'stream' using tcpdump. 'total_len' specifies the full length of
- * the Ethernet frame (of which 'len' bytes were captured).
+static void ofp_print_port_name(struct ds *string, uint16_t port);
+static void ofp_print_match(struct ds *, const struct ofp_match *,
+ int verbosity);
+
+/* Returns a string that represents the contents of the Ethernet frame in the
+ * 'len' bytes starting at 'data' to 'stream' as output by tcpdump.
+ * 'total_len' specifies the full length of the Ethernet frame (of which 'len'
+ * bytes were captured).
+ *
+ * The caller must free the returned string.
*
* This starts and kills a tcpdump subprocess so it's quite expensive. */
-void ofp_print_packet(FILE *stream, const void *data, size_t len,
- size_t total_len)
+char *
+ofp_packet_to_string(const void *data, size_t len, size_t total_len)
{
struct pcap_hdr {
uint32_t magic_number; /* magic number */
struct pcap_hdr ph;
struct pcaprec_hdr prh;
+ struct ds ds = DS_EMPTY_INITIALIZER;
+
char command[128];
+ FILE *pcap;
FILE *tcpdump;
int status;
+ int c;
- fflush(stream);
- snprintf(command, sizeof command, "tcpdump -n -r - %d>&1 2>/dev/null",
- fileno(stream));
- tcpdump = popen(command, "w");
- if (!tcpdump) {
- error(errno, "exec(\"%s\")", command);
- return;
+ pcap = tmpfile();
+ if (!pcap) {
+ ofp_error(errno, "tmpfile");
+ return xstrdup("<error>");
}
/* The pcap reader is responsible for figuring out endianness based on the
prh.incl_len = len;
prh.orig_len = total_len;
- fwrite(&ph, 1, sizeof ph, tcpdump);
- fwrite(&prh, 1, sizeof prh, tcpdump);
- fwrite(data, 1, len, tcpdump);
+ fwrite(&ph, 1, sizeof ph, pcap);
+ fwrite(&prh, 1, sizeof prh, pcap);
+ fwrite(data, 1, len, pcap);
+
+ fflush(pcap);
+ if (ferror(pcap)) {
+ ofp_error(errno, "error writing temporary file");
+ }
+ rewind(pcap);
- fflush(tcpdump);
- if (ferror(tcpdump))
- error(errno, "error writing \"%s\" subprocess", command);
+ snprintf(command, sizeof command, "/usr/sbin/tcpdump -e -n -r /dev/fd/%d 2>/dev/null",
+ fileno(pcap));
+ tcpdump = popen(command, "r");
+ fclose(pcap);
+ if (!tcpdump) {
+ ofp_error(errno, "exec(\"%s\")", command);
+ return xstrdup("<error>");
+ }
+
+ while ((c = getc(tcpdump)) != EOF) {
+ ds_put_char(&ds, c);
+ }
status = pclose(tcpdump);
if (WIFEXITED(status)) {
if (WEXITSTATUS(status))
- error(0, "tcpdump exited with status %d", WEXITSTATUS(status));
+ ofp_error(0, "tcpdump exited with status %d", WEXITSTATUS(status));
} else if (WIFSIGNALED(status)) {
- error(0, "tcpdump exited with signal %d", WTERMSIG(status));
+ ofp_error(0, "tcpdump exited with signal %d", WTERMSIG(status));
}
+ return ds_cstr(&ds);
}
/* Pretty-print the OFPT_PACKET_IN packet of 'len' bytes at 'oh' to 'stream'
* at the given 'verbosity' level. */
-static void ofp_packet_in(FILE *stream, const void *oh, size_t len,
- int verbosity)
+static void
+ofp_packet_in(struct ds *string, const void *oh, size_t len, int verbosity)
{
const struct ofp_packet_in *op = oh;
size_t data_len;
- fprintf(stream, " total_len=%"PRIu16" in_port=%"PRIu8,
- ntohs(op->total_len), ntohs(op->in_port));
+ ds_put_format(string, " total_len=%"PRIu16" in_port=",
+ ntohs(op->total_len));
+ ofp_print_port_name(string, ntohs(op->in_port));
if (op->reason == OFPR_ACTION)
- fputs(" (via action)", stream);
+ ds_put_cstr(string, " (via action)");
else if (op->reason != OFPR_NO_MATCH)
- fprintf(stream, " (***reason %"PRIu8"***)", op->reason);
+ ds_put_format(string, " (***reason %"PRIu8"***)", op->reason);
data_len = len - offsetof(struct ofp_packet_in, data);
- fprintf(stream, " data_len=%zu", data_len);
+ ds_put_format(string, " data_len=%zu", data_len);
if (htonl(op->buffer_id) == UINT32_MAX) {
- fprintf(stream, " (unbuffered)");
+ ds_put_format(string, " (unbuffered)");
if (ntohs(op->total_len) != data_len)
- fprintf(stream, " (***total_len != data_len***)");
+ ds_put_format(string, " (***total_len != data_len***)");
} else {
- fprintf(stream, " buffer=%08"PRIx32, ntohl(op->buffer_id));
+ ds_put_format(string, " buffer=0x%08"PRIx32, ntohl(op->buffer_id));
if (ntohs(op->total_len) < data_len)
- fprintf(stream, " (***total_len < data_len***)");
+ ds_put_format(string, " (***total_len < data_len***)");
}
- putc('\n', stream);
+ ds_put_char(string, '\n');
- if (verbosity > 0)
- ofp_print_packet(stream, op->data, data_len, ntohs(op->total_len));
+ if (verbosity > 0) {
+ struct flow flow;
+ struct ofpbuf packet;
+ struct ofp_match match;
+ packet.data = (void *) op->data;
+ packet.size = data_len;
+ flow_extract(&packet, ntohs(op->in_port), &flow);
+ match.wildcards = 0;
+ match.in_port = flow.in_port;
+ memcpy(match.dl_src, flow.dl_src, ETH_ADDR_LEN);
+ memcpy(match.dl_dst, flow.dl_dst, ETH_ADDR_LEN);
+ match.dl_vlan = flow.dl_vlan;
+ match.dl_type = flow.dl_type;
+ match.nw_proto = flow.nw_proto;
+ match.pad = 0;
+ match.nw_src = flow.nw_src;
+ match.nw_dst = flow.nw_dst;
+ match.tp_src = flow.tp_src;
+ match.tp_dst = flow.tp_dst;
+ ofp_print_match(string, &match, verbosity);
+ ds_put_char(string, '\n');
+ }
+ if (verbosity > 1) {
+ char *packet = ofp_packet_to_string(op->data, data_len,
+ ntohs(op->total_len));
+ ds_put_cstr(string, packet);
+ free(packet);
+ }
}
-static void ofp_print_port_name(FILE *stream, uint16_t port)
+static void ofp_print_port_name(struct ds *string, uint16_t port)
{
- if (port == UINT16_MAX) {
- fputs("none", stream);
- } else if (port == OFPP_FLOOD) {
- fputs("flood", stream);
- } else if (port == OFPP_CONTROLLER) {
- fputs("controller", stream);
+ const char *name;
+ switch (port) {
+ case OFPP_IN_PORT:
+ name = "IN_PORT";
+ break;
+ case OFPP_TABLE:
+ name = "TABLE";
+ break;
+ case OFPP_NORMAL:
+ name = "NORMAL";
+ break;
+ case OFPP_FLOOD:
+ name = "FLOOD";
+ break;
+ case OFPP_ALL:
+ name = "ALL";
+ break;
+ case OFPP_CONTROLLER:
+ name = "CONTROLLER";
+ break;
+ case OFPP_LOCAL:
+ name = "LOCAL";
+ break;
+ case OFPP_NONE:
+ name = "NONE";
+ break;
+ default:
+ ds_put_format(string, "%"PRIu16, port);
+ return;
+ }
+ ds_put_cstr(string, name);
+}
+
+static void
+ofp_print_nx_action(struct ds *string, const struct nx_action_header *nah)
+{
+
+ if (nah->subtype == htonl(NXAST_SNAT)) {
+ const struct nx_action_snat *nas = (struct nx_action_snat *)nah;
+ uint16_t port = ntohs(nas->port);
+
+ if (port < OFPP_MAX) {
+ ds_put_format(string, "nat:%"PRIu16, port);
+ } else {
+ ds_put_format(string, "nat:%"PRIu16" (invalid port)", port);
+ }
} else {
- fprintf(stream, "%"PRIu16, port);
+ ds_put_format(string, "***unknown Nicira action:%d***\n",
+ ntohl(nah->subtype));
}
}
-static void ofp_print_action(FILE *stream, const struct ofp_action *a)
+static int
+ofp_print_action(struct ds *string, const struct ofp_action_header *ah,
+ size_t actions_len)
{
- switch (ntohs(a->type)) {
- case OFPAT_OUTPUT:
- fputs("output(", stream);
- ofp_print_port_name(stream, ntohs(a->arg.output.port));
- if (a->arg.output.port == htons(OFPP_CONTROLLER)) {
- fprintf(stream, ", max %"PRIu16" bytes", ntohs(a->arg.output.max_len));
+ uint16_t type;
+ size_t len;
+
+ struct openflow_action {
+ size_t min_size;
+ size_t max_size;
+ };
+
+ const struct openflow_action of_actions[] = {
+ [OFPAT_OUTPUT] = {
+ sizeof(struct ofp_action_output),
+ sizeof(struct ofp_action_output),
+ },
+ [OFPAT_SET_VLAN_VID] = {
+ sizeof(struct ofp_action_vlan_vid),
+ sizeof(struct ofp_action_vlan_vid),
+ },
+ [OFPAT_SET_VLAN_PCP] = {
+ sizeof(struct ofp_action_vlan_pcp),
+ sizeof(struct ofp_action_vlan_pcp),
+ },
+ [OFPAT_STRIP_VLAN] = {
+ sizeof(struct ofp_action_header),
+ sizeof(struct ofp_action_header),
+ },
+ [OFPAT_SET_DL_SRC] = {
+ sizeof(struct ofp_action_dl_addr),
+ sizeof(struct ofp_action_dl_addr),
+ },
+ [OFPAT_SET_DL_DST] = {
+ sizeof(struct ofp_action_dl_addr),
+ sizeof(struct ofp_action_dl_addr),
+ },
+ [OFPAT_SET_NW_SRC] = {
+ sizeof(struct ofp_action_nw_addr),
+ sizeof(struct ofp_action_nw_addr),
+ },
+ [OFPAT_SET_NW_DST] = {
+ sizeof(struct ofp_action_nw_addr),
+ sizeof(struct ofp_action_nw_addr),
+ },
+ [OFPAT_SET_TP_SRC] = {
+ sizeof(struct ofp_action_tp_port),
+ sizeof(struct ofp_action_tp_port),
+ },
+ [OFPAT_SET_TP_DST] = {
+ sizeof(struct ofp_action_tp_port),
+ sizeof(struct ofp_action_tp_port),
+ }
+ /* OFPAT_VENDOR is not here, since it would blow up the array size. */
+ };
+
+ if (actions_len < sizeof *ah) {
+ ds_put_format(string, "***action array too short for next action***\n");
+ return -1;
+ }
+
+ type = ntohs(ah->type);
+ len = ntohs(ah->len);
+ if (actions_len < len) {
+ ds_put_format(string, "***truncated action %"PRIu16"***\n", type);
+ return -1;
+ }
+
+ if ((len % 8) != 0) {
+ ds_put_format(string,
+ "***action %"PRIu16" length not a multiple of 8***\n",
+ type);
+ return -1;
+ }
+
+ if (type < ARRAY_SIZE(of_actions)) {
+ const struct openflow_action *act = &of_actions[type];
+ if ((len < act->min_size) || (len > act->max_size)) {
+ ds_put_format(string,
+ "***action %"PRIu16" wrong length: %zu***\n", type, len);
+ return -1;
}
- fputs(")", stream);
+ }
+
+ switch (type) {
+ case OFPAT_OUTPUT: {
+ struct ofp_action_output *oa = (struct ofp_action_output *)ah;
+ uint16_t port = ntohs(oa->port);
+ if (port < OFPP_MAX) {
+ ds_put_format(string, "output:%"PRIu16, port);
+ } else {
+ ofp_print_port_name(string, port);
+ if (port == OFPP_CONTROLLER) {
+ if (oa->max_len) {
+ ds_put_format(string, ":%"PRIu16, ntohs(oa->max_len));
+ } else {
+ ds_put_cstr(string, ":all");
+ }
+ }
+ }
+ break;
+ }
+
+ case OFPAT_SET_VLAN_VID: {
+ struct ofp_action_vlan_vid *va = (struct ofp_action_vlan_vid *)ah;
+ ds_put_format(string, "mod_vlan_vid:%"PRIu16, ntohs(va->vlan_vid));
+ break;
+ }
+
+ case OFPAT_SET_VLAN_PCP: {
+ struct ofp_action_vlan_pcp *va = (struct ofp_action_vlan_pcp *)ah;
+ ds_put_format(string, "mod_vlan_pcp:%"PRIu8, va->vlan_pcp);
+ break;
+ }
+
+ case OFPAT_STRIP_VLAN:
+ ds_put_cstr(string, "strip_vlan");
+ break;
+
+ case OFPAT_SET_DL_SRC: {
+ struct ofp_action_dl_addr *da = (struct ofp_action_dl_addr *)ah;
+ ds_put_format(string, "mod_dl_src:"ETH_ADDR_FMT,
+ ETH_ADDR_ARGS(da->dl_addr));
+ break;
+ }
+
+ case OFPAT_SET_DL_DST: {
+ struct ofp_action_dl_addr *da = (struct ofp_action_dl_addr *)ah;
+ ds_put_format(string, "mod_dl_dst:"ETH_ADDR_FMT,
+ ETH_ADDR_ARGS(da->dl_addr));
+ break;
+ }
+
+ case OFPAT_SET_NW_SRC: {
+ struct ofp_action_nw_addr *na = (struct ofp_action_nw_addr *)ah;
+ ds_put_format(string, "mod_nw_src:"IP_FMT, IP_ARGS(&na->nw_addr));
+ break;
+ }
+
+ case OFPAT_SET_NW_DST: {
+ struct ofp_action_nw_addr *na = (struct ofp_action_nw_addr *)ah;
+ ds_put_format(string, "mod_nw_dst:"IP_FMT, IP_ARGS(&na->nw_addr));
break;
+ }
+
+ case OFPAT_SET_TP_SRC: {
+ struct ofp_action_tp_port *ta = (struct ofp_action_tp_port *)ah;
+ ds_put_format(string, "mod_tp_src:%d", ntohs(ta->tp_port));
+ break;
+ }
+
+ case OFPAT_SET_TP_DST: {
+ struct ofp_action_tp_port *ta = (struct ofp_action_tp_port *)ah;
+ ds_put_format(string, "mod_tp_dst:%d", ntohs(ta->tp_port));
+ break;
+ }
+
+ case OFPAT_VENDOR: {
+ struct ofp_action_vendor_header *avh
+ = (struct ofp_action_vendor_header *)ah;
+ if (len < sizeof *avh) {
+ ds_put_format(string, "***ofpat_vendor truncated***\n");
+ return -1;
+ }
+ if (avh->vendor == htonl(NX_VENDOR_ID)) {
+ ofp_print_nx_action(string, (struct nx_action_header *)avh);
+ } else {
+ ds_put_format(string, "vendor action:0x%x", ntohl(avh->vendor));
+ }
+ break;
+ }
default:
- fprintf(stream, "(decoder %"PRIu16" not implemented)", ntohs(a->type));
+ ds_put_format(string, "(decoder %"PRIu16" not implemented)", type);
break;
}
+
+ return len;
}
-static void ofp_print_actions(FILE *stream,
- const struct ofp_action actions[],
- size_t n_bytes)
+static void
+ofp_print_actions(struct ds *string, const struct ofp_action_header *action,
+ size_t actions_len)
{
- size_t i;
+ uint8_t *p = (uint8_t *)action;
+ int len = 0;
- fputs(" actions[", stream);
- for (i = 0; i < n_bytes / sizeof *actions; i++) {
- if (i) {
- fputs("; ", stream);
+ ds_put_cstr(string, "actions=");
+ while (actions_len > 0) {
+ if (len) {
+ ds_put_cstr(string, ",");
}
- ofp_print_action(stream, &actions[i]);
- }
- if (n_bytes % sizeof *actions) {
- if (i) {
- fputs("; ", stream);
+ len = ofp_print_action(string, (struct ofp_action_header *)p,
+ actions_len);
+ if (len < 0) {
+ return;
}
- fputs("; ***trailing garbage***", stream);
+ p += len;
+ actions_len -= len;
}
- fputs("]", stream);
}
-/* Pretty-print the OFPT_PACKET_OUT packet of 'len' bytes at 'oh' to 'stream'
+/* Pretty-print the OFPT_PACKET_OUT packet of 'len' bytes at 'oh' to 'string'
* at the given 'verbosity' level. */
-static void ofp_packet_out(FILE *stream, const void *oh, size_t len,
- int verbosity)
+static void ofp_packet_out(struct ds *string, const void *oh, size_t len,
+ int verbosity)
{
const struct ofp_packet_out *opo = oh;
+ size_t actions_len = ntohs(opo->actions_len);
- fputs(" in_port=", stream);
- ofp_print_port_name(stream, ntohs(opo->in_port));
+ ds_put_cstr(string, " in_port=");
+ ofp_print_port_name(string, ntohs(opo->in_port));
+
+ ds_put_format(string, " actions_len=%zu ", actions_len);
+ if (actions_len > (ntohs(opo->header.length) - sizeof *opo)) {
+ ds_put_format(string, "***packet too short for action length***\n");
+ return;
+ }
+ ofp_print_actions(string, opo->actions, actions_len);
if (ntohl(opo->buffer_id) == UINT32_MAX) {
- fputs(" out_port=", stream);
- ofp_print_port_name(stream, ntohs(opo->out_port));
+ int data_len = len - sizeof *opo - actions_len;
+ ds_put_format(string, " data_len=%d", data_len);
if (verbosity > 0 && len > sizeof *opo) {
- ofp_print_packet(stream, opo->u.data, len - sizeof *opo,
- len - sizeof *opo);
+ char *packet = ofp_packet_to_string(
+ (uint8_t *)opo->actions + actions_len, data_len, data_len);
+ ds_put_char(string, '\n');
+ ds_put_cstr(string, packet);
+ free(packet);
}
} else {
- fprintf(stream, " buffer=%08"PRIx32, ntohl(opo->buffer_id));
- ofp_print_actions(stream, opo->u.actions, len - sizeof *opo);
+ ds_put_format(string, " buffer=0x%08"PRIx32, ntohl(opo->buffer_id));
}
- putc('\n', stream);
+ ds_put_char(string, '\n');
}
/* qsort comparison function. */
return ap < bp ? -1 : ap > bp;
}
-static
-void ofp_print_phy_port(FILE *stream, const struct ofp_phy_port *port)
+static void ofp_print_port_features(struct ds *string, uint32_t features)
+{
+ if (features == 0) {
+ ds_put_cstr(string, "Unsupported\n");
+ return;
+ }
+ if (features & OFPPF_10MB_HD) {
+ ds_put_cstr(string, "10MB-HD ");
+ }
+ if (features & OFPPF_10MB_FD) {
+ ds_put_cstr(string, "10MB-FD ");
+ }
+ if (features & OFPPF_100MB_HD) {
+ ds_put_cstr(string, "100MB-HD ");
+ }
+ if (features & OFPPF_100MB_FD) {
+ ds_put_cstr(string, "100MB-FD ");
+ }
+ if (features & OFPPF_1GB_HD) {
+ ds_put_cstr(string, "1GB-HD ");
+ }
+ if (features & OFPPF_1GB_FD) {
+ ds_put_cstr(string, "1GB-FD ");
+ }
+ if (features & OFPPF_10GB_FD) {
+ ds_put_cstr(string, "10GB-FD ");
+ }
+ if (features & OFPPF_COPPER) {
+ ds_put_cstr(string, "COPPER ");
+ }
+ if (features & OFPPF_FIBER) {
+ ds_put_cstr(string, "FIBER ");
+ }
+ if (features & OFPPF_AUTONEG) {
+ ds_put_cstr(string, "AUTO_NEG ");
+ }
+ if (features & OFPPF_PAUSE) {
+ ds_put_cstr(string, "AUTO_PAUSE ");
+ }
+ if (features & OFPPF_PAUSE_ASYM) {
+ ds_put_cstr(string, "AUTO_PAUSE_ASYM ");
+ }
+ ds_put_char(string, '\n');
+}
+
+static void
+ofp_print_phy_port(struct ds *string, const struct ofp_phy_port *port)
{
uint8_t name[OFP_MAX_PORT_NAME_LEN];
int j;
}
name[j] = '\0';
- fprintf(stream, " %2d(%s): addr:"MAC_FMT", speed:%d, flags:%#x, "
- "feat:%#x\n", ntohs(port->port_no), name,
- MAC_ARGS(port->hw_addr), ntohl(port->speed), ntohl(port->flags),
- ntohl(port->features));
+ ds_put_char(string, ' ');
+ ofp_print_port_name(string, ntohs(port->port_no));
+ ds_put_format(string, "(%s): addr:"ETH_ADDR_FMT", config: %#x, state:%#x\n",
+ name, ETH_ADDR_ARGS(port->hw_addr), ntohl(port->config),
+ ntohl(port->state));
+ if (port->curr) {
+ ds_put_format(string, " current: ");
+ ofp_print_port_features(string, ntohl(port->curr));
+ }
+ if (port->advertised) {
+ ds_put_format(string, " advertised: ");
+ ofp_print_port_features(string, ntohl(port->advertised));
+ }
+ if (port->supported) {
+ ds_put_format(string, " supported: ");
+ ofp_print_port_features(string, ntohl(port->supported));
+ }
+ if (port->peer) {
+ ds_put_format(string, " peer: ");
+ ofp_print_port_features(string, ntohl(port->peer));
+ }
}
-/* Pretty-print the OFPT_DATA_HELLO packet of 'len' bytes at 'oh' to 'stream'
- * at the given 'verbosity' level. */
-void ofp_print_data_hello(FILE *stream, const void *oh, size_t len,
- int verbosity)
+/* Pretty-print the struct ofp_switch_features of 'len' bytes at 'oh' to
+ * 'string' at the given 'verbosity' level. */
+static void
+ofp_print_switch_features(struct ds *string, const void *oh, size_t len,
+ int verbosity)
{
- const struct ofp_data_hello *odh = oh;
- struct ofp_phy_port port_list[OFPP_MAX];
+ const struct ofp_switch_features *osf = oh;
+ struct ofp_phy_port *port_list;
int n_ports;
int i;
+ ds_put_format(string, " ver:0x%x, dpid:%"PRIx64"\n",
+ osf->header.version, ntohll(osf->datapath_id));
+ ds_put_format(string, "n_tables:%d, n_buffers:%d\n", osf->n_tables,
+ ntohl(osf->n_buffers));
+ ds_put_format(string, "features: capabilities:%#x, actions:%#x\n",
+ ntohl(osf->capabilities), ntohl(osf->actions));
- fprintf(stream, "dp id:%"PRIx64"\n", ntohll(odh->datapath_id));
- fprintf(stream, "tables: exact:%d, mac:%d, compressed:%d, general:%d\n",
- ntohl(odh->n_exact), ntohl(odh->n_mac_only),
- ntohl(odh->n_compression), ntohl(odh->n_general));
- fprintf(stream, "buffers: size:%d, number:%d, miss_len:%d\n",
- ntohl(odh->buffer_mb), ntohl(odh->n_buffers),
- ntohs(odh->miss_send_len));
- fprintf(stream, "features: capabilities:%#x, actions:%#x\n",
- ntohl(odh->capabilities), ntohl(odh->actions));
-
- if (ntohs(odh->header.length) >= sizeof *odh) {
- len = MIN(len, ntohs(odh->header.length));
+ if (ntohs(osf->header.length) >= sizeof *osf) {
+ len = MIN(len, ntohs(osf->header.length));
}
- n_ports = (len - sizeof *odh) / sizeof *odh->ports;
+ n_ports = (len - sizeof *osf) / sizeof *osf->ports;
- memcpy(port_list, odh->ports, (len - sizeof *odh));
- qsort(port_list, n_ports, sizeof port_list[0], compare_ports);
+ port_list = xmemdup(osf->ports, len - sizeof *osf);
+ qsort(port_list, n_ports, sizeof *port_list, compare_ports);
for (i = 0; i < n_ports; i++) {
- ofp_print_phy_port(stream, &port_list[i]);
+ ofp_print_phy_port(string, &port_list[i]);
+ }
+ free(port_list);
+}
+
+/* Pretty-print the struct ofp_switch_config of 'len' bytes at 'oh' to 'string'
+ * at the given 'verbosity' level. */
+static void
+ofp_print_switch_config(struct ds *string, const void *oh, size_t len,
+ int verbosity)
+{
+ const struct ofp_switch_config *osc = oh;
+ uint16_t flags;
+
+ flags = ntohs(osc->flags);
+ if (flags & OFPC_SEND_FLOW_EXP) {
+ flags &= ~OFPC_SEND_FLOW_EXP;
+ ds_put_format(string, " (sending flow expirations)");
+ }
+ if (flags) {
+ ds_put_format(string, " ***unknown flags 0x%04"PRIx16"***", flags);
}
+
+ ds_put_format(string, " miss_send_len=%"PRIu16"\n", ntohs(osc->miss_send_len));
}
-static void print_wild(FILE *stream, const char *leader, int is_wild,
- const char *format, ...) __attribute__((format(printf, 4, 5)));
+static void print_wild(struct ds *string, const char *leader, int is_wild,
+ int verbosity, const char *format, ...)
+ __attribute__((format(printf, 5, 6)));
-static void print_wild(FILE *stream, const char *leader, int is_wild,
- const char *format, ...)
+static void print_wild(struct ds *string, const char *leader, int is_wild,
+ int verbosity, const char *format, ...)
{
- fputs(leader, stream);
+ if (is_wild && verbosity < 2) {
+ return;
+ }
+ ds_put_cstr(string, leader);
if (!is_wild) {
va_list args;
va_start(args, format);
- vfprintf(stream, format, args);
+ ds_put_format_valist(string, format, args);
va_end(args);
} else {
- putc('?', stream);
+ ds_put_char(string, '*');
+ }
+ ds_put_char(string, ',');
+}
+
+static void
+print_ip_netmask(struct ds *string, const char *leader, uint32_t ip,
+ uint32_t wild_bits, int verbosity)
+{
+ if (wild_bits >= 32 && verbosity < 2) {
+ return;
+ }
+ ds_put_cstr(string, leader);
+ if (wild_bits < 32) {
+ ds_put_format(string, IP_FMT, IP_ARGS(&ip));
+ if (wild_bits) {
+ ds_put_format(string, "/%d", 32 - wild_bits);
+ }
+ } else {
+ ds_put_char(string, '*');
}
+ ds_put_char(string, ',');
}
/* Pretty-print the ofp_match structure */
-static void ofp_print_match(FILE *f, const struct ofp_match *om)
+static void ofp_print_match(struct ds *f, const struct ofp_match *om,
+ int verbosity)
{
- uint16_t w = ntohs(om->wildcards);
+ uint32_t w = ntohl(om->wildcards);
+ bool skip_type = false;
+ bool skip_proto = false;
- print_wild(f, "inport", w & OFPFW_IN_PORT, "%04x", ntohs(om->in_port));
- print_wild(f, ":vlan", w & OFPFW_DL_VLAN, "%04x", ntohs(om->dl_vlan));
- print_wild(f, " mac[", w & OFPFW_DL_SRC, MAC_FMT, MAC_ARGS(om->dl_src));
- print_wild(f, "->", w & OFPFW_DL_DST, MAC_FMT, MAC_ARGS(om->dl_dst));
- print_wild(f, "] type", w & OFPFW_DL_TYPE, "%04x", ntohs(om->dl_type));
- print_wild(f, " ip[", w & OFPFW_NW_SRC, IP_FMT, IP_ARGS(&om->nw_src));
- print_wild(f, "->", w & OFPFW_NW_DST, IP_FMT, IP_ARGS(&om->nw_dst));
- print_wild(f, "] proto", w & OFPFW_NW_PROTO, "%u", om->nw_proto);
- print_wild(f, " tport[", w & OFPFW_TP_SRC, "%d", ntohs(om->tp_src));
- print_wild(f, "->", w & OFPFW_TP_DST, "%d", ntohs(om->tp_dst));
- fputs("]\n", f);
+ if (!(w & OFPFW_DL_TYPE)) {
+ skip_type = true;
+ if (om->dl_type == htons(ETH_TYPE_IP)) {
+ if (!(w & OFPFW_NW_PROTO)) {
+ skip_proto = true;
+ if (om->nw_proto == IP_TYPE_ICMP) {
+ ds_put_cstr(f, "icmp,");
+ } else if (om->nw_proto == IP_TYPE_TCP) {
+ ds_put_cstr(f, "tcp,");
+ } else if (om->nw_proto == IP_TYPE_UDP) {
+ ds_put_cstr(f, "udp,");
+ } else {
+ ds_put_cstr(f, "ip,");
+ skip_proto = false;
+ }
+ } else {
+ ds_put_cstr(f, "ip,");
+ }
+ } else if (om->dl_type == htons(ETH_TYPE_ARP)) {
+ ds_put_cstr(f, "arp,");
+ } else {
+ skip_type = false;
+ }
+ }
+ print_wild(f, "in_port=", w & OFPFW_IN_PORT, verbosity,
+ "%d", ntohs(om->in_port));
+ print_wild(f, "dl_vlan=", w & OFPFW_DL_VLAN, verbosity,
+ "0x%04x", ntohs(om->dl_vlan));
+ print_wild(f, "dl_src=", w & OFPFW_DL_SRC, verbosity,
+ ETH_ADDR_FMT, ETH_ADDR_ARGS(om->dl_src));
+ print_wild(f, "dl_dst=", w & OFPFW_DL_DST, verbosity,
+ ETH_ADDR_FMT, ETH_ADDR_ARGS(om->dl_dst));
+ if (!skip_type) {
+ print_wild(f, "dl_type=", w & OFPFW_DL_TYPE, verbosity,
+ "0x%04x", ntohs(om->dl_type));
+ }
+ print_ip_netmask(f, "nw_src=", om->nw_src,
+ (w & OFPFW_NW_SRC_MASK) >> OFPFW_NW_SRC_SHIFT, verbosity);
+ print_ip_netmask(f, "nw_dst=", om->nw_dst,
+ (w & OFPFW_NW_DST_MASK) >> OFPFW_NW_DST_SHIFT, verbosity);
+ if (!skip_proto) {
+ print_wild(f, "nw_proto=", w & OFPFW_NW_PROTO, verbosity,
+ "%u", om->nw_proto);
+ }
+ if (om->nw_proto == IP_TYPE_ICMP) {
+ print_wild(f, "icmp_type=", w & OFPFW_ICMP_TYPE, verbosity,
+ "%d", ntohs(om->icmp_type));
+ print_wild(f, "icmp_code=", w & OFPFW_ICMP_CODE, verbosity,
+ "%d", ntohs(om->icmp_code));
+ } else {
+ print_wild(f, "tp_src=", w & OFPFW_TP_SRC, verbosity,
+ "%d", ntohs(om->tp_src));
+ print_wild(f, "tp_dst=", w & OFPFW_TP_DST, verbosity,
+ "%d", ntohs(om->tp_dst));
+ }
}
-/* Pretty-print the OFPT_FLOW_MOD packet of 'len' bytes at 'oh' to 'stream'
+/* Pretty-print the OFPT_FLOW_MOD packet of 'len' bytes at 'oh' to 'string'
* at the given 'verbosity' level. */
-void ofp_print_flow_mod(FILE *stream, const void *oh, size_t len,
- int verbosity)
+static void
+ofp_print_flow_mod(struct ds *string, const void *oh, size_t len,
+ int verbosity)
{
const struct ofp_flow_mod *ofm = oh;
- ofp_print_match(stream, &ofm->match);
- fprintf(stream, " cmd:%d idle:%d buf:%#x grp:%d\n", ntohs(ofm->command),
- ntohs(ofm->max_idle), ntohl(ofm->buffer_id), ntohl(ofm->group_id));
+ ofp_print_match(string, &ofm->match, verbosity);
+ switch (ntohs(ofm->command)) {
+ case OFPFC_ADD:
+ ds_put_cstr(string, " ADD: ");
+ break;
+ case OFPFC_MODIFY:
+ ds_put_cstr(string, " MOD: ");
+ break;
+ case OFPFC_MODIFY_STRICT:
+ ds_put_cstr(string, " MOD_STRICT: ");
+ break;
+ case OFPFC_DELETE:
+ ds_put_cstr(string, " DEL: ");
+ break;
+ case OFPFC_DELETE_STRICT:
+ ds_put_cstr(string, " DEL_STRICT: ");
+ break;
+ default:
+ ds_put_format(string, " cmd:%d ", ntohs(ofm->command));
+ }
+ ds_put_format(string, "idle:%d hard:%d pri:%d buf:%#x",
+ ntohs(ofm->idle_timeout), ntohs(ofm->hard_timeout),
+ ofm->match.wildcards ? ntohs(ofm->priority) : (uint16_t)-1,
+ ntohl(ofm->buffer_id));
+ ofp_print_actions(string, ofm->actions,
+ len - offsetof(struct ofp_flow_mod, actions));
+ ds_put_char(string, '\n');
}
-/* Pretty-print the OFPT_FLOW_EXPIRED packet of 'len' bytes at 'oh' to 'stream'
+/* Pretty-print the OFPT_FLOW_EXPIRED packet of 'len' bytes at 'oh' to 'string'
* at the given 'verbosity' level. */
-void ofp_print_flow_expired(FILE *stream, const void *oh, size_t len,
- int verbosity)
+static void
+ofp_print_flow_expired(struct ds *string, const void *oh, size_t len,
+ int verbosity)
{
const struct ofp_flow_expired *ofe = oh;
- ofp_print_match(stream, &ofe->match);
- fprintf(stream,
- " secs%d pkts%lld bytes%lld\n", ntohl(ofe->duration),
- ntohll(ofe->packet_count), ntohll(ofe->byte_count));
+ ofp_print_match(string, &ofe->match, verbosity);
+ ds_put_cstr(string, " reason=");
+ switch (ofe->reason) {
+ case OFPER_IDLE_TIMEOUT:
+ ds_put_cstr(string, "idle");
+ break;
+ case OFPER_HARD_TIMEOUT:
+ ds_put_cstr(string, "hard");
+ break;
+ default:
+ ds_put_format(string, "**%"PRIu8"**", ofe->reason);
+ break;
+ }
+ ds_put_format(string,
+ " pri%"PRIu16" secs%"PRIu32" pkts%"PRIu64" bytes%"PRIu64"\n",
+ ofe->match.wildcards ? ntohs(ofe->priority) : (uint16_t)-1,
+ ntohl(ofe->duration), ntohll(ofe->packet_count),
+ ntohll(ofe->byte_count));
+}
+/* Pretty-print the NXT_FLOW_EXPIRED packet of 'len' bytes at 'oh' to 'string'
+ * at the given 'verbosity' level. */
+static void
+nx_print_flow_end(struct ds *string, const void *oh, size_t len,
+ int verbosity)
+{
+ const struct nx_flow_end *nfe = oh;
+
+ ds_put_cstr(string, "nx_flow_end: ");
+
+ if (len < sizeof(*nfe)) {
+ ds_put_format(string, " (***length=%zu < min_size=%zu***)\n",
+ len, sizeof(*nfe));
+ return;
+ }
+
+ ofp_print_match(string, &nfe->match, verbosity);
+ ds_put_cstr(string, " reason=");
+ switch (nfe->reason) {
+ case NXFER_IDLE_TIMEOUT:
+ ds_put_cstr(string, "idle");
+ break;
+ case NXFER_HARD_TIMEOUT:
+ ds_put_cstr(string, "hard");
+ break;
+ case NXFER_DELETE:
+ ds_put_cstr(string, "delete");
+ break;
+ case NXFER_EJECT:
+ ds_put_cstr(string, "eject");
+ break;
+ default:
+ ds_put_format(string, "**%"PRIu8"**", nfe->reason);
+ break;
+ }
+ ds_put_format(string,
+ " pri=%"PRIu16" init=%"PRIu64" used=%"PRIu64" end=%"PRIu64,
+ nfe->match.wildcards ? ntohs(nfe->priority) : (uint16_t)-1,
+ ntohll(nfe->init_time), ntohll(nfe->used_time),
+ ntohll(nfe->end_time));
+ ds_put_format(string,
+ " tflags=0x%x tos=0x%x pkts=%"PRIu64" bytes=%"PRIu64"\n",
+ nfe->tcp_flags, nfe->ip_tos, ntohll(nfe->packet_count),
+ ntohll(nfe->byte_count));
+}
+
+static void
+nx_print_msg(struct ds *string, const void *oh, size_t len, int verbosity)
+{
+ const struct nicira_header *nh = oh;
+
+ switch(ntohl(nh->subtype))
+ {
+ case NXT_FLOW_END:
+ nx_print_flow_end(string, oh, len, verbosity);
+ return;
+ }
}
-/* Pretty-print the OFPT_PORT_STATUS packet of 'len' bytes at 'oh' to 'stream'
+
+static void
+ofp_print_port_mod(struct ds *string, const void *oh, size_t len,
+ int verbosity)
+{
+ const struct ofp_port_mod *opm = oh;
+
+ ds_put_format(string, "port: %d: addr:"ETH_ADDR_FMT", config: %#x, mask:%#x\n",
+ ntohs(opm->port_no), ETH_ADDR_ARGS(opm->hw_addr),
+ ntohl(opm->config), ntohl(opm->mask));
+ ds_put_format(string, " advertise: ");
+ if (opm->advertise) {
+ ofp_print_port_features(string, ntohl(opm->advertise));
+ } else {
+ ds_put_format(string, "UNCHANGED\n");
+ }
+}
+
+struct error_type {
+ int type;
+ int code;
+ const char *name;
+};
+
+static const struct error_type error_types[] = {
+#define ERROR_TYPE(TYPE) {TYPE, -1, #TYPE}
+#define ERROR_CODE(TYPE, CODE) {TYPE, CODE, #CODE}
+ ERROR_TYPE(OFPET_HELLO_FAILED),
+ ERROR_CODE(OFPET_HELLO_FAILED, OFPHFC_INCOMPATIBLE),
+
+ ERROR_TYPE(OFPET_BAD_REQUEST),
+ ERROR_CODE(OFPET_BAD_REQUEST, OFPBRC_BAD_VERSION),
+ ERROR_CODE(OFPET_BAD_REQUEST, OFPBRC_BAD_TYPE),
+ ERROR_CODE(OFPET_BAD_REQUEST, OFPBRC_BAD_STAT),
+ ERROR_CODE(OFPET_BAD_REQUEST, OFPBRC_BAD_VERSION),
+
+ ERROR_TYPE(OFPET_BAD_ACTION),
+ ERROR_CODE(OFPET_BAD_ACTION, OFPBAC_BAD_TYPE),
+ ERROR_CODE(OFPET_BAD_ACTION, OFPBAC_BAD_LEN),
+ ERROR_CODE(OFPET_BAD_ACTION, OFPBAC_BAD_VENDOR),
+ ERROR_CODE(OFPET_BAD_ACTION, OFPBAC_BAD_VENDOR_TYPE),
+ ERROR_CODE(OFPET_BAD_ACTION, OFPBAC_BAD_OUT_PORT),
+
+ ERROR_TYPE(OFPET_FLOW_MOD_FAILED),
+ ERROR_CODE(OFPET_FLOW_MOD_FAILED, OFPFMFC_ALL_TABLES_FULL)
+};
+#define N_ERROR_TYPES ARRAY_SIZE(error_types)
+
+static const char *
+lookup_error_type(int type)
+{
+ const struct error_type *t;
+
+ for (t = error_types; t < &error_types[N_ERROR_TYPES]; t++) {
+ if (t->type == type && t->code == -1) {
+ return t->name;
+ }
+ }
+ return "?";
+}
+
+static const char *
+lookup_error_code(int type, int code)
+{
+ const struct error_type *t;
+
+ for (t = error_types; t < &error_types[N_ERROR_TYPES]; t++) {
+ if (t->type == type && t->code == code) {
+ return t->name;
+ }
+ }
+ return "?";
+}
+
+/* Pretty-print the OFPT_ERROR packet of 'len' bytes at 'oh' to 'string'
* at the given 'verbosity' level. */
-void ofp_print_port_status(FILE *stream, const void *oh, size_t len,
- int verbosity)
+static void
+ofp_print_error_msg(struct ds *string, const void *oh, size_t len,
+ int verbosity)
+{
+ const struct ofp_error_msg *oem = oh;
+ int type = ntohs(oem->type);
+ int code = ntohs(oem->code);
+ char *s;
+
+ ds_put_format(string, " type%d(%s) code%d(%s) payload:\n",
+ type, lookup_error_type(type),
+ code, lookup_error_code(type, code));
+
+ switch (type) {
+ case OFPET_HELLO_FAILED:
+ ds_put_printable(string, (char *) oem->data, len - sizeof *oem);
+ break;
+
+ case OFPET_BAD_REQUEST:
+ s = ofp_to_string(oem->data, len - sizeof *oem, 1);
+ ds_put_cstr(string, s);
+ free(s);
+ break;
+
+ default:
+ ds_put_hex_dump(string, oem->data, len - sizeof *oem, 0, true);
+ break;
+ }
+}
+
+/* Pretty-print the OFPT_PORT_STATUS packet of 'len' bytes at 'oh' to 'string'
+ * at the given 'verbosity' level. */
+static void
+ofp_print_port_status(struct ds *string, const void *oh, size_t len,
+ int verbosity)
{
const struct ofp_port_status *ops = oh;
if (ops->reason == OFPPR_ADD) {
- fprintf(stream, "add:");
+ ds_put_format(string, " ADD:");
} else if (ops->reason == OFPPR_DELETE) {
- fprintf(stream, "del:");
- } else if (ops->reason == OFPPR_MOD) {
- fprintf(stream, "mod:");
+ ds_put_format(string, " DEL:");
+ } else if (ops->reason == OFPPR_MODIFY) {
+ ds_put_format(string, " MOD:");
+ }
+
+ ofp_print_phy_port(string, &ops->desc);
+}
+
+static void
+ofp_desc_stats_reply(struct ds *string, const void *body, size_t len,
+ int verbosity)
+{
+ const struct ofp_desc_stats *ods = body;
+
+ ds_put_format(string, "Manufacturer: %s\n", ods->mfr_desc);
+ ds_put_format(string, "Hardware: %s\n", ods->hw_desc);
+ ds_put_format(string, "Software: %s\n", ods->sw_desc);
+ ds_put_format(string, "Serial Num: %s\n", ods->serial_num);
+}
+
+static void
+ofp_flow_stats_request(struct ds *string, const void *oh, size_t len,
+ int verbosity)
+{
+ const struct ofp_flow_stats_request *fsr = oh;
+
+ if (fsr->table_id == 0xff) {
+ ds_put_format(string, " table_id=any, ");
+ } else {
+ ds_put_format(string, " table_id=%"PRIu8", ", fsr->table_id);
+ }
+
+ ofp_print_match(string, &fsr->match, verbosity);
+}
+
+static void
+ofp_flow_stats_reply(struct ds *string, const void *body_, size_t len,
+ int verbosity)
+{
+ const char *body = body_;
+ const char *pos = body;
+ for (;;) {
+ const struct ofp_flow_stats *fs;
+ ptrdiff_t bytes_left = body + len - pos;
+ size_t length;
+
+ if (bytes_left < sizeof *fs) {
+ if (bytes_left != 0) {
+ ds_put_format(string, " ***%td leftover bytes at end***",
+ bytes_left);
+ }
+ break;
+ }
+
+ fs = (const void *) pos;
+ length = ntohs(fs->length);
+ if (length < sizeof *fs) {
+ ds_put_format(string, " ***length=%zu shorter than minimum %zu***",
+ length, sizeof *fs);
+ break;
+ } else if (length > bytes_left) {
+ ds_put_format(string,
+ " ***length=%zu but only %td bytes left***",
+ length, bytes_left);
+ break;
+ } else if ((length - sizeof *fs) % sizeof fs->actions[0]) {
+ ds_put_format(string,
+ " ***length=%zu has %zu bytes leftover in "
+ "final action***",
+ length,
+ (length - sizeof *fs) % sizeof fs->actions[0]);
+ break;
+ }
+
+ ds_put_format(string, " duration=%"PRIu32"s, ", ntohl(fs->duration));
+ ds_put_format(string, "table_id=%"PRIu8", ", fs->table_id);
+ ds_put_format(string, "priority=%"PRIu16", ",
+ fs->match.wildcards ? ntohs(fs->priority) : (uint16_t)-1);
+ ds_put_format(string, "n_packets=%"PRIu64", ",
+ ntohll(fs->packet_count));
+ ds_put_format(string, "n_bytes=%"PRIu64", ", ntohll(fs->byte_count));
+ ds_put_format(string, "idle_timeout=%"PRIu16",",
+ ntohs(fs->idle_timeout));
+ ds_put_format(string, "hard_timeout=%"PRIu16",",
+ ntohs(fs->hard_timeout));
+ ofp_print_match(string, &fs->match, verbosity);
+ ofp_print_actions(string, fs->actions, length - sizeof *fs);
+ ds_put_char(string, '\n');
+
+ pos += length;
+ }
+}
+
+static void
+ofp_aggregate_stats_request(struct ds *string, const void *oh, size_t len,
+ int verbosity)
+{
+ const struct ofp_aggregate_stats_request *asr = oh;
+
+ if (asr->table_id == 0xff) {
+ ds_put_format(string, " table_id=any, ");
+ } else {
+ ds_put_format(string, " table_id=%"PRIu8", ", asr->table_id);
+ }
+
+ ofp_print_match(string, &asr->match, verbosity);
+}
+
+static void
+ofp_aggregate_stats_reply(struct ds *string, const void *body_, size_t len,
+ int verbosity)
+{
+ const struct ofp_aggregate_stats_reply *asr = body_;
+
+ ds_put_format(string, " packet_count=%"PRIu64, ntohll(asr->packet_count));
+ ds_put_format(string, " byte_count=%"PRIu64, ntohll(asr->byte_count));
+ ds_put_format(string, " flow_count=%"PRIu32, ntohl(asr->flow_count));
+}
+
+static void print_port_stat(struct ds *string, const char *leader,
+ uint64_t stat, int more)
+{
+ ds_put_cstr(string, leader);
+ if (stat != -1) {
+ ds_put_format(string, "%"PRIu64, stat);
+ } else {
+ ds_put_char(string, '?');
+ }
+ if (more) {
+ ds_put_cstr(string, ", ");
+ } else {
+ ds_put_cstr(string, "\n");
+ }
+}
+
+static void
+ofp_port_stats_reply(struct ds *string, const void *body, size_t len,
+ int verbosity)
+{
+ const struct ofp_port_stats *ps = body;
+ size_t n = len / sizeof *ps;
+ ds_put_format(string, " %zu ports\n", n);
+ if (verbosity < 1) {
+ return;
+ }
+
+ for (; n--; ps++) {
+ ds_put_format(string, " port %2"PRIu16": ", ntohs(ps->port_no));
+
+ ds_put_cstr(string, "rx ");
+ print_port_stat(string, "pkts=", ntohll(ps->rx_packets), 1);
+ print_port_stat(string, "bytes=", ntohll(ps->rx_bytes), 1);
+ print_port_stat(string, "drop=", ntohll(ps->rx_dropped), 1);
+ print_port_stat(string, "errs=", ntohll(ps->rx_errors), 1);
+ print_port_stat(string, "frame=", ntohll(ps->rx_frame_err), 1);
+ print_port_stat(string, "over=", ntohll(ps->rx_over_err), 1);
+ print_port_stat(string, "crc=", ntohll(ps->rx_crc_err), 0);
+
+ ds_put_cstr(string, " tx ");
+ print_port_stat(string, "pkts=", ntohll(ps->tx_packets), 1);
+ print_port_stat(string, "bytes=", ntohll(ps->tx_bytes), 1);
+ print_port_stat(string, "drop=", ntohll(ps->tx_dropped), 1);
+ print_port_stat(string, "errs=", ntohll(ps->tx_errors), 1);
+ print_port_stat(string, "coll=", ntohll(ps->collisions), 0);
+ }
+}
+
+static void
+ofp_table_stats_reply(struct ds *string, const void *body, size_t len,
+ int verbosity)
+{
+ const struct ofp_table_stats *ts = body;
+ size_t n = len / sizeof *ts;
+ ds_put_format(string, " %zu tables\n", n);
+ if (verbosity < 1) {
+ return;
+ }
+
+ for (; n--; ts++) {
+ char name[OFP_MAX_TABLE_NAME_LEN + 1];
+ strncpy(name, ts->name, sizeof name);
+ name[OFP_MAX_TABLE_NAME_LEN] = '\0';
+
+ ds_put_format(string, " %d: %-8s: ", ts->table_id, name);
+ ds_put_format(string, "wild=0x%05"PRIx32", ", ntohl(ts->wildcards));
+ ds_put_format(string, "max=%6"PRIu32", ", ntohl(ts->max_entries));
+ ds_put_format(string, "active=%"PRIu32"\n", ntohl(ts->active_count));
+ ds_put_cstr(string, " ");
+ ds_put_format(string, "lookup=%"PRIu64", ",
+ ntohll(ts->lookup_count));
+ ds_put_format(string, "matched=%"PRIu64"\n",
+ ntohll(ts->matched_count));
+ }
+}
+
+static void
+vendor_stat(struct ds *string, const void *body, size_t len,
+ int verbosity UNUSED)
+{
+ ds_put_format(string, " vendor=%08"PRIx32, ntohl(*(uint32_t *) body));
+ ds_put_format(string, " %zu bytes additional data",
+ len - sizeof(uint32_t));
+}
+
+enum stats_direction {
+ REQUEST,
+ REPLY
+};
+
+static void
+print_stats(struct ds *string, int type, const void *body, size_t body_len,
+ int verbosity, enum stats_direction direction)
+{
+ struct stats_msg {
+ size_t min_body, max_body;
+ void (*printer)(struct ds *, const void *, size_t len, int verbosity);
+ };
+
+ struct stats_type {
+ int type;
+ const char *name;
+ struct stats_msg request;
+ struct stats_msg reply;
+ };
+
+ static const struct stats_type stats_types[] = {
+ {
+ OFPST_DESC,
+ "description",
+ { 0, 0, NULL },
+ { 0, SIZE_MAX, ofp_desc_stats_reply },
+ },
+ {
+ OFPST_FLOW,
+ "flow",
+ { sizeof(struct ofp_flow_stats_request),
+ sizeof(struct ofp_flow_stats_request),
+ ofp_flow_stats_request },
+ { 0, SIZE_MAX, ofp_flow_stats_reply },
+ },
+ {
+ OFPST_AGGREGATE,
+ "aggregate",
+ { sizeof(struct ofp_aggregate_stats_request),
+ sizeof(struct ofp_aggregate_stats_request),
+ ofp_aggregate_stats_request },
+ { sizeof(struct ofp_aggregate_stats_reply),
+ sizeof(struct ofp_aggregate_stats_reply),
+ ofp_aggregate_stats_reply },
+ },
+ {
+ OFPST_TABLE,
+ "table",
+ { 0, 0, NULL },
+ { 0, SIZE_MAX, ofp_table_stats_reply },
+ },
+ {
+ OFPST_PORT,
+ "port",
+ { 0, 0, NULL, },
+ { 0, SIZE_MAX, ofp_port_stats_reply },
+ },
+ {
+ OFPST_VENDOR,
+ "vendor-specific",
+ { sizeof(uint32_t), SIZE_MAX, vendor_stat },
+ { sizeof(uint32_t), SIZE_MAX, vendor_stat },
+ },
+ {
+ -1,
+ "unknown",
+ { 0, 0, NULL, },
+ { 0, 0, NULL, },
+ },
+ };
+
+ const struct stats_type *s;
+ const struct stats_msg *m;
+
+ if (type >= ARRAY_SIZE(stats_types) || !stats_types[type].name) {
+ ds_put_format(string, " ***unknown type %d***", type);
+ return;
+ }
+ for (s = stats_types; s->type >= 0; s++) {
+ if (s->type == type) {
+ break;
+ }
+ }
+ ds_put_format(string, " type=%d(%s)\n", type, s->name);
+
+ m = direction == REQUEST ? &s->request : &s->reply;
+ if (body_len < m->min_body || body_len > m->max_body) {
+ ds_put_format(string, " ***body_len=%zu not in %zu...%zu***",
+ body_len, m->min_body, m->max_body);
+ return;
+ }
+ if (m->printer) {
+ m->printer(string, body, body_len, verbosity);
+ }
+}
+
+static void
+ofp_stats_request(struct ds *string, const void *oh, size_t len, int verbosity)
+{
+ const struct ofp_stats_request *srq = oh;
+
+ if (srq->flags) {
+ ds_put_format(string, " ***unknown flags 0x%04"PRIx16"***",
+ ntohs(srq->flags));
+ }
+
+ print_stats(string, ntohs(srq->type), srq->body,
+ len - offsetof(struct ofp_stats_request, body),
+ verbosity, REQUEST);
+}
+
+static void
+ofp_stats_reply(struct ds *string, const void *oh, size_t len, int verbosity)
+{
+ const struct ofp_stats_reply *srp = oh;
+
+ ds_put_cstr(string, " flags=");
+ if (!srp->flags) {
+ ds_put_cstr(string, "none");
} else {
- fprintf(stream, "err:");
+ uint16_t flags = ntohs(srp->flags);
+ if (flags & OFPSF_REPLY_MORE) {
+ ds_put_cstr(string, "[more]");
+ flags &= ~OFPSF_REPLY_MORE;
+ }
+ if (flags) {
+ ds_put_format(string, "[***unknown flags 0x%04"PRIx16"***]", flags);
+ }
+ }
+
+ print_stats(string, ntohs(srp->type), srp->body,
+ len - offsetof(struct ofp_stats_reply, body),
+ verbosity, REPLY);
+}
+
+static void
+ofp_echo(struct ds *string, const void *oh, size_t len, int verbosity)
+{
+ const struct ofp_header *hdr = oh;
+
+ ds_put_format(string, " %zu bytes of payload\n", len - sizeof *hdr);
+ if (verbosity > 1) {
+ ds_put_hex_dump(string, hdr, len - sizeof *hdr, 0, true);
}
+}
+
+static void
+ofp_vendor(struct ds *string, const void *oh, size_t len, int verbosity)
+{
+ const struct ofp_vendor_header *vh = oh;
- ofp_print_phy_port(stream, &ops->desc);
+ switch(ntohl(vh->vendor))
+ {
+ case NX_VENDOR_ID:
+ return nx_print_msg(string, oh, len, verbosity);
+ break;
+ }
}
struct openflow_packet {
+ uint8_t type;
const char *name;
size_t min_size;
- void (*printer)(FILE *, const void *, size_t len, int verbosity);
+ void (*printer)(struct ds *, const void *, size_t len, int verbosity);
};
static const struct openflow_packet packets[] = {
- [OFPT_CONTROL_HELLO] = {
- "ofp_control_hello",
- sizeof (struct ofp_control_hello),
+ {
+ OFPT_HELLO,
+ "hello",
+ sizeof (struct ofp_header),
NULL,
},
- [OFPT_DATA_HELLO] = {
- "ofp_data_hello",
- sizeof (struct ofp_data_hello),
- ofp_print_data_hello,
+ {
+ OFPT_FEATURES_REQUEST,
+ "features_request",
+ sizeof (struct ofp_header),
+ NULL,
+ },
+ {
+ OFPT_FEATURES_REPLY,
+ "features_reply",
+ sizeof (struct ofp_switch_features),
+ ofp_print_switch_features,
+ },
+ {
+ OFPT_GET_CONFIG_REQUEST,
+ "get_config_request",
+ sizeof (struct ofp_header),
+ NULL,
+ },
+ {
+ OFPT_GET_CONFIG_REPLY,
+ "get_config_reply",
+ sizeof (struct ofp_switch_config),
+ ofp_print_switch_config,
+ },
+ {
+ OFPT_SET_CONFIG,
+ "set_config",
+ sizeof (struct ofp_switch_config),
+ ofp_print_switch_config,
},
- [OFPT_PACKET_IN] = {
- "ofp_packet_in",
+ {
+ OFPT_PACKET_IN,
+ "packet_in",
offsetof(struct ofp_packet_in, data),
ofp_packet_in,
},
- [OFPT_PACKET_OUT] = {
- "ofp_packet_out",
+ {
+ OFPT_PACKET_OUT,
+ "packet_out",
sizeof (struct ofp_packet_out),
ofp_packet_out,
},
- [OFPT_FLOW_MOD] = {
- "ofp_flow_mod",
+ {
+ OFPT_FLOW_MOD,
+ "flow_mod",
sizeof (struct ofp_flow_mod),
ofp_print_flow_mod,
},
- [OFPT_FLOW_EXPIRED] = {
- "ofp_flow_expired",
+ {
+ OFPT_FLOW_EXPIRED,
+ "flow_expired",
sizeof (struct ofp_flow_expired),
ofp_print_flow_expired,
},
- [OFPT_PORT_MOD] = {
- "ofp_port_mod",
+ {
+ OFPT_PORT_MOD,
+ "port_mod",
sizeof (struct ofp_port_mod),
- NULL,
+ ofp_print_port_mod,
},
- [OFPT_PORT_STATUS] = {
- "ofp_port_status",
+ {
+ OFPT_PORT_STATUS,
+ "port_status",
sizeof (struct ofp_port_status),
ofp_print_port_status
},
+ {
+ OFPT_ERROR,
+ "error_msg",
+ sizeof (struct ofp_error_msg),
+ ofp_print_error_msg,
+ },
+ {
+ OFPT_STATS_REQUEST,
+ "stats_request",
+ sizeof (struct ofp_stats_request),
+ ofp_stats_request,
+ },
+ {
+ OFPT_STATS_REPLY,
+ "stats_reply",
+ sizeof (struct ofp_stats_reply),
+ ofp_stats_reply,
+ },
+ {
+ OFPT_ECHO_REQUEST,
+ "echo_request",
+ sizeof (struct ofp_header),
+ ofp_echo,
+ },
+ {
+ OFPT_ECHO_REPLY,
+ "echo_reply",
+ sizeof (struct ofp_header),
+ ofp_echo,
+ },
+ {
+ OFPT_VENDOR,
+ "vendor",
+ sizeof (struct ofp_vendor_header),
+ ofp_vendor,
+ },
};
-/* Pretty-print the OpenFlow packet of 'len' bytes at 'oh' to 'stream' at the
- * given 'verbosity' level. 0 is a minimal amount of verbosity and higher
- * numbers increase verbosity. */
-void ofp_print(FILE *stream, const void *oh_, size_t len, int verbosity)
+/* Composes and returns a string representing the OpenFlow packet of 'len'
+ * bytes at 'oh' at the given 'verbosity' level. 0 is a minimal amount of
+ * verbosity and higher numbers increase verbosity. The caller is responsible
+ * for freeing the string. */
+char *
+ofp_to_string(const void *oh_, size_t len, int verbosity)
{
+ struct ds string = DS_EMPTY_INITIALIZER;
const struct ofp_header *oh = oh_;
const struct openflow_packet *pkt;
if (len < sizeof(struct ofp_header)) {
- fprintf(stream, "OpenFlow packet too short:\n");
- hex_dump(stream, oh, len, 0, true);
- return;
- } else if (oh->version != 1) {
- fprintf(stream, "Bad OpenFlow version %"PRIu8":\n", oh->version);
- hex_dump(stream, oh, len, 0, true);
- return;
- } else if (oh->type >= ARRAY_SIZE(packets) || !packets[oh->type].name) {
- fprintf(stream, "Unknown OpenFlow packet type %"PRIu8":\n",
- oh->type);
- hex_dump(stream, oh, len, 0, true);
- return;
+ ds_put_cstr(&string, "OpenFlow packet too short:\n");
+ ds_put_hex_dump(&string, oh, len, 0, true);
+ return ds_cstr(&string);
+ } else if (oh->version != OFP_VERSION) {
+ ds_put_format(&string, "Bad OpenFlow version %"PRIu8":\n", oh->version);
+ ds_put_hex_dump(&string, oh, len, 0, true);
+ return ds_cstr(&string);
+ }
+
+ for (pkt = packets; ; pkt++) {
+ if (pkt >= &packets[ARRAY_SIZE(packets)]) {
+ ds_put_format(&string, "Unknown OpenFlow packet type %"PRIu8":\n",
+ oh->type);
+ ds_put_hex_dump(&string, oh, len, 0, true);
+ return ds_cstr(&string);
+ } else if (oh->type == pkt->type) {
+ break;
+ }
}
- pkt = &packets[oh->type];
- fprintf(stream, "%s (xid=%"PRIx32"):", pkt->name, oh->xid);
+ ds_put_format(&string, "%s (xid=0x%"PRIx32"):", pkt->name, oh->xid);
if (ntohs(oh->length) > len)
- fprintf(stream, " (***truncated to %zu bytes from %"PRIu16"***)",
+ ds_put_format(&string, " (***truncated to %zu bytes from %"PRIu16"***)",
len, ntohs(oh->length));
else if (ntohs(oh->length) < len) {
- fprintf(stream, " (***only uses %"PRIu16" bytes out of %zu***)\n",
+ ds_put_format(&string, " (***only uses %"PRIu16" bytes out of %zu***)\n",
ntohs(oh->length), len);
len = ntohs(oh->length);
}
if (len < pkt->min_size) {
- fprintf(stream, " (***length=%zu < min_size=%zu***)\n",
+ ds_put_format(&string, " (***length=%zu < min_size=%zu***)\n",
len, pkt->min_size);
} else if (!pkt->printer) {
- fprintf(stream, " length=%zu (decoder not implemented)\n",
- ntohs(oh->length));
+ if (len > sizeof *oh) {
+ ds_put_format(&string, " length=%"PRIu16" (decoder not implemented)\n",
+ ntohs(oh->length));
+ }
} else {
- pkt->printer(stream, oh, len, verbosity);
+ pkt->printer(&string, oh, len, verbosity);
+ }
+ if (verbosity >= 3) {
+ ds_put_hex_dump(&string, oh, len, 0, true);
+ }
+ if (string.string[string.length - 1] != '\n') {
+ ds_put_char(&string, '\n');
}
- if (verbosity >= 3)
- hex_dump(stream, oh, len, 0, true);
+ return ds_cstr(&string);
+}
+\f
+static void
+print_and_free(FILE *stream, char *string)
+{
+ fputs(string, stream);
+ free(string);
}
-/* Pretty print a openflow table */
-void ofp_print_table(FILE *stream, const struct ofp_table* ot)
+/* Pretty-print the OpenFlow packet of 'len' bytes at 'oh' to 'stream' at the
+ * given 'verbosity' level. 0 is a minimal amount of verbosity and higher
+ * numbers increase verbosity. */
+void
+ofp_print(FILE *stream, const void *oh, size_t len, int verbosity)
+{
+ print_and_free(stream, ofp_to_string(oh, len, verbosity));
+}
+
+/* Dumps the contents of the Ethernet frame in the 'len' bytes starting at
+ * 'data' to 'stream' using tcpdump. 'total_len' specifies the full length of
+ * the Ethernet frame (of which 'len' bytes were captured).
+ *
+ * This starts and kills a tcpdump subprocess so it's quite expensive. */
+void
+ofp_print_packet(FILE *stream, const void *data, size_t len, size_t total_len)
{
- fprintf(stream, "id: %d name: %-8s n_flows: %6d max_flows: %6d",
- ntohs(ot->table_id), ot->name, ntohl(ot->n_flows),
- ntohl(ot->max_flows));
+ print_and_free(stream, ofp_packet_to_string(data, len, total_len));
}
git://git.onelab.eu / sliver-openvswitch.git / blobdiff