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Date: Mon, 5 Mar 2018 22:58:30 -0800
From: Stephen Hemminger <stephen@...workplumber.org>
To: dsahern@...il.com, sd@...asysnail.net
Cc: netdev@...r.kernel.org, Stephen Hemminger <sthemmin@...rosoft.com>,
Stephen Hemminger <stephen@...workplumber.org>
Subject: [PATCH iproute2-next 3/3] macsec: support JSON
From: Stephen Hemminger <sthemmin@...rosoft.com>
The JSON support in macsec code was mostly missing and what was
there was broken. This uses new json_print utilities to complete
output.
Compile tested only.
Signed-off-by: Stephen Hemminger <stephen@...workplumber.org>
---
ip/ipmacsec.c | 249 +++++++++++++++++++++++++++++++++++++++-------------------
1 file changed, 168 insertions(+), 81 deletions(-)
diff --git a/ip/ipmacsec.c b/ip/ipmacsec.c
index b9976da80603..38ec7136e555 100644
--- a/ip/ipmacsec.c
+++ b/ip/ipmacsec.c
@@ -559,19 +559,33 @@ static int validate_secy_dump(struct rtattr **attrs)
attrs[MACSEC_SECY_ATTR_SCB];
}
-static void print_flag(FILE *f, struct rtattr *attrs[], const char *desc,
+static void print_flag(struct rtattr *attrs[], const char *desc,
int field)
{
- if (attrs[field]) {
- const char *v = values_on_off[!!rta_getattr_u8(attrs[field])];
+ __u8 flag;
- if (is_json_context())
- print_string(PRINT_JSON, desc, NULL, v);
- else
- fprintf(f, "%s %s ", desc, v);
+ if (!attrs[field])
+ return;
+
+ flag = rta_getattr_u8(attrs[field]);
+ if (is_json_context())
+ print_bool(PRINT_JSON, desc, NULL, flag);
+ else {
+ print_string(PRINT_FP, NULL, "%s ", desc);
+ print_string(PRINT_FP, NULL, "%s ",
+ flag ? "on" : "off");
}
}
+static void print_key(struct rtattr *key)
+{
+ SPRINT_BUF(keyid);
+
+ print_string(PRINT_ANY, "key", " key %s\n",
+ hexstring_n2a(RTA_DATA(key), RTA_PAYLOAD(key),
+ keyid, sizeof(keyid)));
+}
+
#define DEFAULT_CIPHER_NAME "GCM-AES-128"
static const char *cs_id_to_name(__u64 cid)
@@ -585,43 +599,45 @@ static const char *cs_id_to_name(__u64 cid)
}
}
-static void print_cipher_suite(const char *prefix, __u64 cid, __u8 icv_len)
-{
- printf("%scipher suite: %s, using ICV length %d\n", prefix,
- cs_id_to_name(cid), icv_len);
-}
-
-static void print_attrs(const char *prefix, struct rtattr *attrs[])
+static void print_attrs(struct rtattr *attrs[])
{
- print_flag(stdout, attrs, "protect", MACSEC_SECY_ATTR_PROTECT);
+ print_flag(attrs, "protect", MACSEC_SECY_ATTR_PROTECT);
if (attrs[MACSEC_SECY_ATTR_VALIDATE]) {
__u8 val = rta_getattr_u8(attrs[MACSEC_SECY_ATTR_VALIDATE]);
- printf("validate %s ", validate_str[val]);
+ print_string(PRINT_ANY, "validate",
+ "validate %s ", validate_str[val]);
}
- print_flag(stdout, attrs, "sc", MACSEC_RXSC_ATTR_ACTIVE);
- print_flag(stdout, attrs, "sa", MACSEC_SA_ATTR_ACTIVE);
- print_flag(stdout, attrs, "encrypt", MACSEC_SECY_ATTR_ENCRYPT);
- print_flag(stdout, attrs, "send_sci", MACSEC_SECY_ATTR_INC_SCI);
- print_flag(stdout, attrs, "end_station", MACSEC_SECY_ATTR_ES);
- print_flag(stdout, attrs, "scb", MACSEC_SECY_ATTR_SCB);
+ print_flag(attrs, "sc", MACSEC_RXSC_ATTR_ACTIVE);
+ print_flag(attrs, "sa", MACSEC_SA_ATTR_ACTIVE);
+ print_flag(attrs, "encrypt", MACSEC_SECY_ATTR_ENCRYPT);
+ print_flag(attrs, "send_sci", MACSEC_SECY_ATTR_INC_SCI);
+ print_flag(attrs, "end_station", MACSEC_SECY_ATTR_ES);
+ print_flag(attrs, "scb", MACSEC_SECY_ATTR_SCB);
+ print_flag(attrs, "replay", MACSEC_SECY_ATTR_REPLAY);
- print_flag(stdout, attrs, "replay", MACSEC_SECY_ATTR_REPLAY);
if (attrs[MACSEC_SECY_ATTR_WINDOW]) {
- printf("window %d ",
- rta_getattr_u32(attrs[MACSEC_SECY_ATTR_WINDOW]));
+ __u32 win = rta_getattr_u32(attrs[MACSEC_SECY_ATTR_WINDOW]);
+
+ print_uint(PRINT_ANY, "window", "window %u ", win);
}
- if (attrs[MACSEC_SECY_ATTR_CIPHER_SUITE] &&
- attrs[MACSEC_SECY_ATTR_ICV_LEN]) {
- printf("\n");
- print_cipher_suite(prefix,
- rta_getattr_u64(attrs[MACSEC_SECY_ATTR_CIPHER_SUITE]),
- rta_getattr_u8(attrs[MACSEC_SECY_ATTR_ICV_LEN]));
+ if (attrs[MACSEC_SECY_ATTR_CIPHER_SUITE]) {
+ __u64 cid = rta_getattr_u64(attrs[MACSEC_SECY_ATTR_CIPHER_SUITE]);
+
+ print_string(PRINT_FP, NULL, "%s", _SL_);
+ print_string(PRINT_ANY, "cipher_suite",
+ " cipher suite: %s,", cs_id_to_name(cid));
}
+ if (attrs[MACSEC_SECY_ATTR_ICV_LEN]) {
+ __u8 icv_len = rta_getattr_u8(attrs[MACSEC_SECY_ATTR_ICV_LEN]);
+
+ print_uint(PRINT_ANY, "icv_length",
+ " using ICV length %u\n", icv_len);
+ }
}
static __u64 getattr_uint(struct rtattr *stat)
@@ -642,9 +658,9 @@ static __u64 getattr_uint(struct rtattr *stat)
}
}
-static void print_stats(const char *prefix,
- const char *names[], unsigned int num,
- struct rtattr *stats[])
+static void print_fp_stats(const char *prefix,
+ const char *names[], unsigned int num,
+ struct rtattr *stats[])
{
unsigned int i;
int pad;
@@ -672,6 +688,31 @@ static void print_stats(const char *prefix,
printf("\n");
}
+static void print_json_stats(const char *names[], unsigned int num,
+ struct rtattr *stats[])
+{
+ unsigned int i;
+
+ for (i = 1; i < num; i++) {
+ if (!names[i] || !stats[i])
+ continue;
+
+ print_uint(PRINT_JSON, names[i],
+ NULL, getattr_uint(stats[i]));
+ }
+}
+
+static void print_stats(const char *prefix,
+ const char *names[], unsigned int num,
+ struct rtattr *stats[])
+{
+
+ if (is_json_context())
+ print_json_stats(names, num, stats);
+ else
+ print_fp_stats(prefix, names, num, stats);
+}
+
static const char *txsc_stats_names[NUM_MACSEC_TXSC_STATS_ATTR] = {
[MACSEC_TXSC_STATS_ATTR_OUT_PKTS_PROTECTED] = "OutPktsProtected",
[MACSEC_TXSC_STATS_ATTR_OUT_PKTS_ENCRYPTED] = "OutPktsEncrypted",
@@ -761,26 +802,40 @@ static void print_tx_sc(const char *prefix, __u64 sci, __u8 encoding_sa,
struct rtattr *a;
int rem;
- printf("%sTXSC: %016llx on SA %d\n", prefix, ntohll(sci), encoding_sa);
+ print_string(PRINT_FP, NULL, "%s", prefix);
+ print_0xhex(PRINT_ANY, "sci",
+ "TXSC: %016llx", ntohll(sci));
+ print_uint(PRINT_ANY, "encoding_sa",
+ " on SA %d\n", encoding_sa);
+
print_secy_stats(prefix, secy_stats);
print_txsc_stats(prefix, txsc_stats);
+ open_json_array(PRINT_JSON, "sa_list");
rem = RTA_PAYLOAD(sa);
for (a = RTA_DATA(sa); RTA_OK(a, rem); a = RTA_NEXT(a, rem)) {
- SPRINT_BUF(keyid);
bool state;
+ open_json_object(NULL);
parse_rtattr_nested(sa_attr, MACSEC_SA_ATTR_MAX + 1, a);
state = rta_getattr_u8(sa_attr[MACSEC_SA_ATTR_ACTIVE]);
- printf("%s%s%d: PN %u, state %s, key %s\n", prefix, prefix,
- rta_getattr_u8(sa_attr[MACSEC_SA_ATTR_AN]),
- rta_getattr_u32(sa_attr[MACSEC_SA_ATTR_PN]),
- values_on_off[state],
- hexstring_n2a(RTA_DATA(sa_attr[MACSEC_SA_ATTR_KEYID]),
- RTA_PAYLOAD(sa_attr[MACSEC_SA_ATTR_KEYID]),
- keyid, sizeof(keyid)));
+
+ print_string(PRINT_FP, NULL, "%s", prefix);
+ print_string(PRINT_FP, NULL, "%s", prefix);
+ print_uint(PRINT_ANY, "an", "%d:",
+ rta_getattr_u8(sa_attr[MACSEC_SA_ATTR_AN]));
+ print_uint(PRINT_ANY, "pn", " PN %u,",
+ rta_getattr_u32(sa_attr[MACSEC_SA_ATTR_PN]));
+
+ print_bool(PRINT_JSON, "active", NULL, state);
+ print_string(PRINT_FP, NULL,
+ " state %s,", state ? "on" : "off");
+ print_key(sa_attr[MACSEC_SA_ATTR_KEYID]);
+
print_txsa_stats(prefix, sa_attr[MACSEC_SA_ATTR_STATS]);
+ close_json_object();
}
+ close_json_array(PRINT_JSON, NULL);
}
static const char *rxsc_stats_names[NUM_MACSEC_RXSC_STATS_ATTR] = {
@@ -809,46 +864,81 @@ static void print_rxsc_stats(const char *prefix, struct rtattr *attr)
NUM_MACSEC_RXSC_STATS_ATTR, stats);
}
-static void print_rx_sc(const char *prefix, __u64 sci, __u8 active,
+static void print_rx_sc(const char *prefix, __be64 sci, __u8 active,
struct rtattr *rxsc_stats, struct rtattr *sa)
{
struct rtattr *sa_attr[MACSEC_SA_ATTR_MAX + 1];
struct rtattr *a;
int rem;
- printf("%sRXSC: %016llx, state %s\n", prefix, ntohll(sci),
- values_on_off[!!active]);
+ print_string(PRINT_FP, NULL, "%s", prefix);
+ print_0xhex(PRINT_ANY, "sci",
+ "RXSC: %016llx,", ntohll(sci));
+ print_bool(PRINT_JSON, "active", NULL, active);
+ print_string(PRINT_FP, NULL,
+ " state %s\n", active ? "on" : "off");
print_rxsc_stats(prefix, rxsc_stats);
+ open_json_array(PRINT_JSON, "sa_list");
rem = RTA_PAYLOAD(sa);
for (a = RTA_DATA(sa); RTA_OK(a, rem); a = RTA_NEXT(a, rem)) {
- SPRINT_BUF(keyid);
bool state;
+ open_json_object(NULL);
parse_rtattr_nested(sa_attr, MACSEC_SA_ATTR_MAX + 1, a);
state = rta_getattr_u8(sa_attr[MACSEC_SA_ATTR_ACTIVE]);
- printf("%s%s%d: PN %u, state %s, key %s\n", prefix, prefix,
- rta_getattr_u8(sa_attr[MACSEC_SA_ATTR_AN]),
- rta_getattr_u32(sa_attr[MACSEC_SA_ATTR_PN]),
- values_on_off[state],
- hexstring_n2a(RTA_DATA(sa_attr[MACSEC_SA_ATTR_KEYID]),
- RTA_PAYLOAD(sa_attr[MACSEC_SA_ATTR_KEYID]),
- keyid, sizeof(keyid)));
+
+ print_string(PRINT_FP, NULL, "%s", prefix);
+ print_string(PRINT_FP, NULL, "%s", prefix);
+ print_uint(PRINT_ANY, "an", "%u:",
+ rta_getattr_u8(sa_attr[MACSEC_SA_ATTR_AN]));
+ print_uint(PRINT_ANY, "pn", " PN %u,",
+ rta_getattr_u32(sa_attr[MACSEC_SA_ATTR_PN]));
+
+ print_bool(PRINT_JSON, "active", NULL, state);
+ print_string(PRINT_FP, NULL, " state %s,",
+ state ? "on" : "off");
+
+ print_key(sa_attr[MACSEC_SA_ATTR_KEYID]);
+
print_rxsa_stats(prefix, sa_attr[MACSEC_SA_ATTR_STATS]);
+ close_json_object();
+ }
+ close_json_array(PRINT_JSON, NULL);
+}
+
+static void print_rxsc_list(struct rtattr *sc)
+{
+ int rem = RTA_PAYLOAD(sc);
+ struct rtattr *c;
+
+ open_json_array(PRINT_JSON, "rx_sc");
+ for (c = RTA_DATA(sc); RTA_OK(c, rem); c = RTA_NEXT(c, rem)) {
+ struct rtattr *sc_attr[MACSEC_RXSC_ATTR_MAX + 1];
+
+ open_json_object(NULL);
+
+ parse_rtattr_nested(sc_attr, MACSEC_RXSC_ATTR_MAX + 1, c);
+ print_rx_sc(" ",
+ rta_getattr_u64(sc_attr[MACSEC_RXSC_ATTR_SCI]),
+ rta_getattr_u32(sc_attr[MACSEC_RXSC_ATTR_ACTIVE]),
+ sc_attr[MACSEC_RXSC_ATTR_STATS],
+ sc_attr[MACSEC_RXSC_ATTR_SA_LIST]);
+ close_json_object();
}
+ close_json_array(PRINT_JSON, NULL);
}
static int process(const struct sockaddr_nl *who, struct nlmsghdr *n,
void *arg)
{
struct genlmsghdr *ghdr;
- struct rtattr *attrs[MACSEC_ATTR_MAX + 1], *sc, *c;
+ struct rtattr *attrs[MACSEC_ATTR_MAX + 1];
struct rtattr *attrs_secy[MACSEC_SECY_ATTR_MAX + 1];
int len = n->nlmsg_len;
int ifindex;
__u64 sci;
__u8 encoding_sa;
- int rem;
if (n->nlmsg_type != genl_family)
return -1;
@@ -863,7 +953,7 @@ static int process(const struct sockaddr_nl *who, struct nlmsghdr *n,
parse_rtattr(attrs, MACSEC_ATTR_MAX, (void *) ghdr + GENL_HDRLEN, len);
if (!validate_dump(attrs)) {
- printf("incomplete dump message\n");
+ fprintf(stderr, "incomplete dump message\n");
return -1;
}
@@ -872,7 +962,7 @@ static int process(const struct sockaddr_nl *who, struct nlmsghdr *n,
attrs[MACSEC_ATTR_SECY]);
if (!validate_secy_dump(attrs_secy)) {
- printf("incomplete dump message\n");
+ fprintf(stderr, "incomplete dump message\n");
return -1;
}
@@ -885,29 +975,22 @@ static int process(const struct sockaddr_nl *who, struct nlmsghdr *n,
if (filter.sci && sci != filter.sci)
return 0;
- printf("%d: %s: ", ifindex, ll_index_to_name(ifindex));
- print_attrs(" ", attrs_secy);
+ open_json_object(NULL);
+ print_uint(PRINT_ANY, "ifindex", "%u: ", ifindex);
+ print_color_string(PRINT_ANY, COLOR_IFNAME, "ifname",
+ "%s: ", ll_index_to_name(ifindex));
+
+ print_attrs(attrs_secy);
print_tx_sc(" ", sci, encoding_sa,
attrs[MACSEC_ATTR_TXSC_STATS],
attrs[MACSEC_ATTR_SECY_STATS],
attrs[MACSEC_ATTR_TXSA_LIST]);
- if (!attrs[MACSEC_ATTR_RXSC_LIST])
- return 0;
+ if (attrs[MACSEC_ATTR_RXSC_LIST])
+ print_rxsc_list(attrs[MACSEC_ATTR_RXSC_LIST]);
- sc = attrs[MACSEC_ATTR_RXSC_LIST];
- rem = RTA_PAYLOAD(sc);
- for (c = RTA_DATA(sc); RTA_OK(c, rem); c = RTA_NEXT(c, rem)) {
- struct rtattr *sc_attr[MACSEC_RXSC_ATTR_MAX + 1];
-
- parse_rtattr_nested(sc_attr, MACSEC_RXSC_ATTR_MAX + 1, c);
- print_rx_sc(" ",
- rta_getattr_u64(sc_attr[MACSEC_RXSC_ATTR_SCI]),
- rta_getattr_u32(sc_attr[MACSEC_RXSC_ATTR_ACTIVE]),
- sc_attr[MACSEC_RXSC_ATTR_STATS],
- sc_attr[MACSEC_RXSC_ATTR_SA_LIST]);
- }
+ close_json_object();
return 0;
}
@@ -926,10 +1009,13 @@ static int do_dump(int ifindex)
exit(1);
}
+ new_json_obj(json);
if (rtnl_dump_filter(&genl_rth, process, stdout) < 0) {
+ delete_json_obj();
fprintf(stderr, "Dump terminated\n");
exit(1);
}
+ delete_json_obj();
return 0;
}
@@ -1000,10 +1086,11 @@ static void macsec_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
}
}
- print_flag(f, tb, "protect", IFLA_MACSEC_PROTECT);
+ print_flag(tb, "protect", IFLA_MACSEC_PROTECT);
if (tb[IFLA_MACSEC_CIPHER_SUITE]) {
- __u64 csid = rta_getattr_u64(tb[IFLA_MACSEC_CIPHER_SUITE]);
+ __u64 csid
+ = rta_getattr_u64(tb[IFLA_MACSEC_CIPHER_SUITE]);
print_string(PRINT_ANY,
"cipher_suite",
@@ -1058,11 +1145,11 @@ static void macsec_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
replay = "replay";
}
- print_flag(f, tb, "encrypt", IFLA_MACSEC_ENCRYPT);
- print_flag(f, tb, inc_sci, IFLA_MACSEC_INC_SCI);
- print_flag(f, tb, es, IFLA_MACSEC_ES);
- print_flag(f, tb, "scb", IFLA_MACSEC_SCB);
- print_flag(f, tb, replay, IFLA_MACSEC_REPLAY_PROTECT);
+ print_flag(tb, "encrypt", IFLA_MACSEC_ENCRYPT);
+ print_flag(tb, inc_sci, IFLA_MACSEC_INC_SCI);
+ print_flag(tb, es, IFLA_MACSEC_ES);
+ print_flag(tb, "scb", IFLA_MACSEC_SCB);
+ print_flag(tb, replay, IFLA_MACSEC_REPLAY_PROTECT);
if (tb[IFLA_MACSEC_WINDOW])
print_int(PRINT_ANY,
--
2.16.1
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