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ovs-dpctl: Fix mega flow output

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ovs-dpctl sometimes displays wildcarded fields as exact match. This
patch fixes those cases.

This patch implements the following logic. When OVS_FLOW_ATTR_MASK is
missing, the entire key attributes will be displayed as exact match fields.
When OVS_FLOW_ATTR_MASK is present, but some individual key attributes do
not have matching attributes in the mask, those key attributes will be
displayed as wildcarded fields.

Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: Justin Pettit <jpettit@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
This commit is contained in:
Andy Zhou
2013-06-27 22:02:58 -07:00
committed by Justin Pettit
parent 9b658910ab
commit dc8c540870
2 changed files with 104 additions and 42 deletions
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145
lib/odp-util.c
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@@ -934,10 +934,9 @@ format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
enum ovs_key_attr attr = nl_attr_type(a);
char namebuf[OVS_KEY_ATTR_BUFSIZE];
int expected_len;
bool is_exact;
if (ma && odp_mask_attr_is_exact(ma)) {
ma = NULL;
}
is_exact = ma ? odp_mask_attr_is_exact(ma) : true;
ds_put_cstr(ds, ovs_key_attr_to_string(attr, namebuf, sizeof namebuf));
@@ -981,7 +980,7 @@ format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
case OVS_KEY_ATTR_PRIORITY:
case OVS_KEY_ATTR_SKB_MARK:
ds_put_format(ds, "%#"PRIx32, nl_attr_get_u32(a));
if (ma) {
if (!is_exact) {
ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
}
break;
@@ -990,7 +989,7 @@ format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
memset(&tun_key, 0, sizeof tun_key);
if (odp_tun_key_from_attr(a, &tun_key) == ODP_FIT_ERROR) {
ds_put_format(ds, "error");
} else if (ma) {
} else if (!is_exact) {
struct flow_tnl tun_mask;
memset(&tun_mask, 0, sizeof tun_mask);
@@ -1029,13 +1028,13 @@ format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
case OVS_KEY_ATTR_IN_PORT:
ds_put_format(ds, "%"PRIu32, nl_attr_get_u32(a));
if (ma) {
if (!is_exact) {
ds_put_format(ds, "/%#"PRIx32, nl_attr_get_u32(ma));
}
break;
case OVS_KEY_ATTR_ETHERNET:
if (ma) {
if (!is_exact) {
const struct ovs_key_ethernet *eth_mask = nl_attr_get(ma);
const struct ovs_key_ethernet *eth_key = nl_attr_get(a);
@@ -1057,7 +1056,7 @@ format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
case OVS_KEY_ATTR_VLAN:
{
ovs_be16 vlan_tci = nl_attr_get_be16(a);
if (ma) {
if (!is_exact) {
ovs_be16 mask = nl_attr_get_be16(ma);
ds_put_format(ds, "vid=%"PRIu16"/%"PRIx16",pcp=%d/0x%x,cfi=%d/%d",
vlan_tci_to_vid(vlan_tci),
@@ -1075,7 +1074,7 @@ format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
case OVS_KEY_ATTR_MPLS: {
const struct ovs_key_mpls *mpls_key = nl_attr_get(a);
const struct ovs_key_mpls *mpls_mask = NULL;
if (ma) {
if (!is_exact) {
mpls_mask = nl_attr_get(ma);
}
format_mpls(ds, mpls_key, mpls_mask);
@@ -1084,13 +1083,13 @@ format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
case OVS_KEY_ATTR_ETHERTYPE:
ds_put_format(ds, "0x%04"PRIx16, ntohs(nl_attr_get_be16(a)));
if (ma) {
if (!is_exact) {
ds_put_format(ds, "/0x%04"PRIx16, ntohs(nl_attr_get_be16(ma)));
}
break;
case OVS_KEY_ATTR_IPV4:
if (ma) {
if (!is_exact) {
const struct ovs_key_ipv4 *ipv4_key = nl_attr_get(a);
const struct ovs_key_ipv4 *ipv4_mask = nl_attr_get(ma);
@@ -1120,7 +1119,7 @@ format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
break;
case OVS_KEY_ATTR_IPV6:
if (ma) {
if (!is_exact) {
const struct ovs_key_ipv6 *ipv6_key, *ipv6_mask;
char src_str[INET6_ADDRSTRLEN];
char dst_str[INET6_ADDRSTRLEN];
@@ -1165,7 +1164,7 @@ format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
break;
case OVS_KEY_ATTR_TCP:
if (ma) {
if (!is_exact) {
const struct ovs_key_tcp *tcp_mask = nl_attr_get(ma);
const struct ovs_key_tcp *tcp_key = nl_attr_get(a);
@@ -1182,7 +1181,7 @@ format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
break;
case OVS_KEY_ATTR_UDP:
if (ma) {
if (!is_exact) {
const struct ovs_key_udp *udp_mask = nl_attr_get(ma);
const struct ovs_key_udp *udp_key = nl_attr_get(a);
@@ -1199,7 +1198,7 @@ format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
break;
case OVS_KEY_ATTR_ICMP:
if (ma) {
if (!is_exact) {
const struct ovs_key_icmp *icmp_mask = nl_attr_get(ma);
const struct ovs_key_icmp *icmp_key = nl_attr_get(a);
@@ -1215,7 +1214,7 @@ format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
break;
case OVS_KEY_ATTR_ICMPV6:
if (ma) {
if (!is_exact) {
const struct ovs_key_icmpv6 *icmpv6_mask = nl_attr_get(ma);
const struct ovs_key_icmpv6 *icmpv6_key = nl_attr_get(a);
@@ -1231,7 +1230,7 @@ format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
break;
case OVS_KEY_ATTR_ARP:
if (ma) {
if (!is_exact) {
const struct ovs_key_arp *arp_mask = nl_attr_get(ma);
const struct ovs_key_arp *arp_key = nl_attr_get(a);
@@ -1261,15 +1260,17 @@ format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
break;
case OVS_KEY_ATTR_ND: {
const struct ovs_key_nd *nd_key, *nd_mask;
const struct ovs_key_nd *nd_key, *nd_mask = NULL;
char target[INET6_ADDRSTRLEN];
nd_key = nl_attr_get(a);
nd_mask = ma ? nl_attr_get(ma) : NULL;
if (!is_exact) {
nd_mask = nl_attr_get(ma);
}
inet_ntop(AF_INET6, nd_key->nd_target, target, sizeof target);
ds_put_format(ds, "target=%s", target);
if (nd_mask) {
if (!is_exact) {
inet_ntop(AF_INET6, nd_mask->nd_target, target, sizeof target);
ds_put_format(ds, "/%s", target);
}
@@ -1277,7 +1278,7 @@ format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
if (!eth_addr_is_zero(nd_key->nd_sll)) {
ds_put_format(ds, ",sll="ETH_ADDR_FMT,
ETH_ADDR_ARGS(nd_key->nd_sll));
if (nd_mask) {
if (!is_exact) {
ds_put_format(ds, "/"ETH_ADDR_FMT,
ETH_ADDR_ARGS(nd_mask->nd_sll));
}
@@ -1285,7 +1286,7 @@ format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
if (!eth_addr_is_zero(nd_key->nd_tll)) {
ds_put_format(ds, ",tll="ETH_ADDR_FMT,
ETH_ADDR_ARGS(nd_key->nd_tll));
if (nd_mask) {
if (!is_exact) {
ds_put_format(ds, "/"ETH_ADDR_FMT,
ETH_ADDR_ARGS(nd_mask->nd_tll));
}
@@ -1297,7 +1298,7 @@ format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
case __OVS_KEY_ATTR_MAX:
default:
format_generic_odp_key(a, ds);
if (ma) {
if (!is_exact) {
ds_put_char(ds, '/');
format_generic_odp_key(ma, ds);
}
@@ -1306,6 +1307,29 @@ format_odp_key_attr(const struct nlattr *a, const struct nlattr *ma,
ds_put_char(ds, ')');
}
static struct nlattr *
generate_all_wildcard_mask(struct ofpbuf *ofp, const struct nlattr *key)
{
const struct nlattr *a;
unsigned int left;
int type = nl_attr_type(key);
int size = nl_attr_get_size(key);
if (odp_flow_key_attr_len(type) >=0) {
memset(nl_msg_put_unspec_uninit(ofp, type, size), 0, size);
} else {
size_t nested_mask;
nested_mask = nl_msg_start_nested(ofp, type);
NL_ATTR_FOR_EACH(a, left, key, nl_attr_get_size(key)) {
generate_all_wildcard_mask(ofp, nl_attr_get(a));
}
nl_msg_end_nested(ofp, nested_mask);
}
return ofp->base;
}
/* Appends to 'ds' a string representation of the 'key_len' bytes of
* OVS_KEY_ATTR_* attributes in 'key'. If non-null, additionally formats the
* 'mask_len' bytes of 'mask' which apply to 'key'. */
@@ -1319,7 +1343,9 @@ odp_flow_format(const struct nlattr *key, size_t key_len,
unsigned int left;
bool has_ethtype_key = false;
const struct nlattr *ma = NULL;
struct ofpbuf ofp;
ofpbuf_init(&ofp, 100);
NL_ATTR_FOR_EACH (a, left, key, key_len) {
if (a != key) {
ds_put_char(ds, ',');
@@ -1329,9 +1355,15 @@ odp_flow_format(const struct nlattr *key, size_t key_len,
}
if (mask && mask_len) {
ma = nl_attr_find__(mask, mask_len, nl_attr_type(a));
if (!ma) {
ma = generate_all_wildcard_mask(&ofp, a);
}
}
format_odp_key_attr(a, ma, ds);
ofpbuf_clear(&ofp);
}
ofpbuf_uninit(&ofp);
if (left) {
int i;
@@ -1365,23 +1397,51 @@ odp_flow_key_format(const struct nlattr *key,
odp_flow_format(key, key_len, NULL, 0, ds);
}
static void
put_nd(struct ovs_key_nd* nd_key, const uint8_t *nd_sll,
const uint8_t *nd_tll, struct ofpbuf *key)
{
if (nd_sll) {
memcpy(nd_key->nd_sll, nd_sll, ETH_ADDR_LEN);
}
if (nd_tll) {
memcpy(nd_key->nd_tll, nd_tll, ETH_ADDR_LEN);
}
nl_msg_put_unspec(key, OVS_KEY_ATTR_ND, nd_key, sizeof *nd_key);
}
static int
put_nd_key(int n, const char *nd_target_s,
const uint8_t *nd_sll, const uint8_t *nd_tll, struct ofpbuf *key)
put_nd_key(int n, const char *nd_target_s, const uint8_t *nd_sll,
const uint8_t *nd_tll, struct ofpbuf *key)
{
struct ovs_key_nd nd_key;
memset(&nd_key, 0, sizeof nd_key);
if (inet_pton(AF_INET6, nd_target_s, nd_key.nd_target) != 1) {
return -EINVAL;
}
if (nd_sll) {
memcpy(nd_key.nd_sll, nd_sll, ETH_ADDR_LEN);
put_nd(&nd_key, nd_sll, nd_tll, key);
return n;
}
static int
put_nd_mask(int n, const char *nd_target_s,
const uint8_t *nd_sll, const uint8_t *nd_tll, struct ofpbuf *mask)
{
struct ovs_key_nd nd_mask;
memset(&nd_mask, 0xff, sizeof nd_mask);
if (strlen(nd_target_s) != 0 &&
inet_pton(AF_INET6, nd_target_s, nd_mask.nd_target) != 1) {
return -EINVAL;
}
if (nd_tll) {
memcpy(nd_key.nd_tll, nd_tll, ETH_ADDR_LEN);
}
nl_msg_put_unspec(key, OVS_KEY_ATTR_ND, &nd_key, sizeof nd_key);
put_nd(&nd_mask, nd_sll, nd_tll, mask);
return n;
}
@@ -2096,19 +2156,19 @@ parse_odp_key_mask_attr(const char *s, const struct simap *port_names,
uint8_t nd_tll_mask[ETH_ADDR_LEN];
int n = -1;
memset(&nd_target_mask_s[0], 0xff, sizeof nd_target_s);
memset(&nd_sll_mask[0], 0xff, sizeof nd_sll);
memset(&nd_tll_mask [0], 0xff, sizeof nd_tll);
nd_target_mask_s[0] = 0;
memset(nd_sll_mask, 0xff, sizeof nd_sll_mask);
memset(nd_tll_mask, 0xff, sizeof nd_tll_mask);
if (mask && sscanf(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT")%n",
nd_target_s, nd_target_mask_s, &n) > 0 && n > 0) {
put_nd_key(n, nd_target_s, NULL, NULL, key);
put_nd_key(n, nd_target_mask_s, NULL, NULL, mask);
put_nd_mask(n, nd_target_mask_s, NULL, NULL, mask);
} else if (sscanf(s, "nd(target="IPV6_SCAN_FMT")%n",
nd_target_s, &n) > 0 && n > 0) {
put_nd_key(n, nd_target_s, NULL, NULL, key);
if (mask) {
put_nd_key(n, nd_target_mask_s, NULL, NULL, mask);
put_nd_mask(n, nd_target_mask_s, NULL, NULL, mask);
}
} else if (mask && sscanf(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
@@ -2116,13 +2176,13 @@ parse_odp_key_mask_attr(const char *s, const struct simap *port_names,
ETH_ADDR_SCAN_ARGS(nd_sll),
ETH_ADDR_SCAN_ARGS(nd_sll_mask), &n) > 0 && n > 0) {
put_nd_key(n, nd_target_s, nd_sll, NULL, key);
put_nd_key(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
put_nd_mask(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
} else if (sscanf(s, "nd(target="IPV6_SCAN_FMT",sll="ETH_ADDR_SCAN_FMT")%n",
nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll), &n) > 0
&& n > 0) {
put_nd_key(n, nd_target_s, nd_sll, NULL, key);
if (mask) {
put_nd_key(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
put_nd_mask(n, nd_target_mask_s, nd_sll_mask, NULL, mask);
}
} else if (mask && sscanf(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
",tll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT")%n",
@@ -2130,13 +2190,13 @@ parse_odp_key_mask_attr(const char *s, const struct simap *port_names,
ETH_ADDR_SCAN_ARGS(nd_tll),
ETH_ADDR_SCAN_ARGS(nd_tll_mask), &n) > 0 && n > 0) {
put_nd_key(n, nd_target_s, NULL, nd_tll, key);
put_nd_key(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
put_nd_mask(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
} else if (sscanf(s, "nd(target="IPV6_SCAN_FMT",tll="ETH_ADDR_SCAN_FMT")%n",
nd_target_s, ETH_ADDR_SCAN_ARGS(nd_tll), &n) > 0
&& n > 0) {
put_nd_key(n, nd_target_s, NULL, nd_tll, key);
if (mask) {
put_nd_key(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
put_nd_mask(n, nd_target_mask_s, NULL, nd_tll_mask, mask);
}
} else if (mask && sscanf(s, "nd(target="IPV6_SCAN_FMT"/"IPV6_SCAN_FMT
",sll="ETH_ADDR_SCAN_FMT"/"ETH_ADDR_SCAN_FMT","
@@ -2147,7 +2207,7 @@ parse_odp_key_mask_attr(const char *s, const struct simap *port_names,
&n) > 0
&& n > 0) {
put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
put_nd_key(n, nd_target_mask_s, nd_sll_mask, nd_tll_mask, mask);
put_nd_mask(n, nd_target_mask_s, nd_sll_mask, nd_tll_mask, mask);
} else if (sscanf(s, "nd(target="IPV6_SCAN_FMT",sll="ETH_ADDR_SCAN_FMT","
"tll="ETH_ADDR_SCAN_FMT")%n",
nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll),
@@ -2155,7 +2215,8 @@ parse_odp_key_mask_attr(const char *s, const struct simap *port_names,
&& n > 0) {
put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
if (mask) {
put_nd_key(n, nd_target_mask_s, nd_sll_mask, nd_tll_mask, mask);
put_nd_mask(n, nd_target_mask_s,
nd_sll_mask, nd_tll_mask, mask);
}
}