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Date: Sun, 11 Feb 2024 00:59:41 +0000
From: Takanori Hirano <me@...tknr.net>
To: Stephen Hemminger <stephen@...workplumber.org>
Cc: netdev@...r.kernel.org, Takanori Hirano <me@...tknr.net>
Subject: [PATCH] tc: Support json option in tc-cgroup, tc-flow and tc-route
Fix json corruption when using the "-json" option in some cases
Signed-off-by: Takanori Hirano <me@...tknr.net>
Signed-off-by: Stephen Hemminger <stephen@...workplumber.org>
---
tc/f_cgroup.c | 4 +--
tc/f_flow.c | 67 ++++++++++++++++++++++++++++++---------------------
tc/f_route.c | 38 +++++++++++++++++++++++------
3 files changed, 71 insertions(+), 38 deletions(-)
diff --git a/tc/f_cgroup.c b/tc/f_cgroup.c
index a4fc03d1..291d6e7e 100644
--- a/tc/f_cgroup.c
+++ b/tc/f_cgroup.c
@@ -86,13 +86,13 @@ static int cgroup_print_opt(struct filter_util *qu, FILE *f,
parse_rtattr_nested(tb, TCA_CGROUP_MAX, opt);
if (handle)
- fprintf(f, "handle 0x%x ", handle);
+ print_0xhex(PRINT_ANY, "handle", "handle %#llx ", handle);
if (tb[TCA_CGROUP_EMATCHES])
print_ematch(f, tb[TCA_CGROUP_EMATCHES]);
if (tb[TCA_CGROUP_POLICE]) {
- fprintf(f, "\n");
+ print_nl();
tc_print_police(f, tb[TCA_CGROUP_POLICE]);
}
diff --git a/tc/f_flow.c b/tc/f_flow.c
index 2445aaef..f37e360c 100644
--- a/tc/f_flow.c
+++ b/tc/f_flow.c
@@ -258,6 +258,21 @@ static int flow_parse_opt(struct filter_util *fu, char *handle,
return 0;
}
+static const char *flow_mode2str(__u32 mode)
+{
+ static char buf[128];
+
+ switch (mode) {
+ case FLOW_MODE_MAP:
+ return "map";
+ case FLOW_MODE_HASH:
+ return "hash";
+ default:
+ snprintf(buf, sizeof(buf), "%#x", mode);
+ return buf;
+ }
+}
+
static int flow_print_opt(struct filter_util *fu, FILE *f, struct rtattr *opt,
__u32 handle)
{
@@ -272,33 +287,27 @@ static int flow_print_opt(struct filter_util *fu, FILE *f, struct rtattr *opt,
parse_rtattr_nested(tb, TCA_FLOW_MAX, opt);
- fprintf(f, "handle 0x%x ", handle);
+ print_0xhex(PRINT_ANY, "handle", "handle %#llx ", handle);
if (tb[TCA_FLOW_MODE]) {
__u32 mode = rta_getattr_u32(tb[TCA_FLOW_MODE]);
-
- switch (mode) {
- case FLOW_MODE_MAP:
- fprintf(f, "map ");
- break;
- case FLOW_MODE_HASH:
- fprintf(f, "hash ");
- break;
- }
+ print_string(PRINT_ANY, "mode", "%s ", flow_mode2str(mode));
}
if (tb[TCA_FLOW_KEYS]) {
__u32 keymask = rta_getattr_u32(tb[TCA_FLOW_KEYS]);
- char *sep = "";
+ char *sep = " ";
- fprintf(f, "keys ");
+ open_json_array(PRINT_ANY, "keys");
for (i = 0; i <= FLOW_KEY_MAX; i++) {
if (keymask & (1 << i)) {
- fprintf(f, "%s%s", sep, flow_keys[i]);
+ print_string(PRINT_FP, NULL, "%s", sep);
+ print_string(PRINT_ANY, NULL, "%s",
+ flow_keys[i]);
sep = ",";
}
}
- fprintf(f, " ");
+ close_json_array(PRINT_ANY, " ");
}
if (tb[TCA_FLOW_MASK])
@@ -311,37 +320,39 @@ static int flow_print_opt(struct filter_util *fu, FILE *f, struct rtattr *opt,
__u32 xor = mask & val;
if (mask != ~0)
- fprintf(f, "and 0x%.8x ", mask);
+ print_0xhex(PRINT_ANY, "and", "and 0x%.8x ", mask);
if (xor != 0)
- fprintf(f, "xor 0x%.8x ", xor);
+ print_0xhex(PRINT_ANY, "xor", "xor 0x%.8x ", xor);
if (or != 0)
- fprintf(f, "or 0x%.8x ", or);
+ print_0xhex(PRINT_ANY, "or", "or 0x%.8x ", or);
}
if (tb[TCA_FLOW_RSHIFT])
- fprintf(f, "rshift %u ",
- rta_getattr_u32(tb[TCA_FLOW_RSHIFT]));
+ print_uint(PRINT_ANY, "rshift", "rshift %u ",
+ rta_getattr_u32(tb[TCA_FLOW_RSHIFT]));
if (tb[TCA_FLOW_ADDEND])
- fprintf(f, "addend 0x%x ",
- rta_getattr_u32(tb[TCA_FLOW_ADDEND]));
+ print_0xhex(PRINT_ANY, "addend", "addend 0x%x ",
+ rta_getattr_u32(tb[TCA_FLOW_ADDEND]));
if (tb[TCA_FLOW_DIVISOR])
- fprintf(f, "divisor %u ",
- rta_getattr_u32(tb[TCA_FLOW_DIVISOR]));
+ print_uint(PRINT_ANY, "divisor", "divisor %u ",
+ rta_getattr_u32(tb[TCA_FLOW_DIVISOR]));
if (tb[TCA_FLOW_BASECLASS])
- fprintf(f, "baseclass %s ",
- sprint_tc_classid(rta_getattr_u32(tb[TCA_FLOW_BASECLASS]), b1));
+ print_string(PRINT_ANY, "baseclass", "baseclass %s ",
+ sprint_tc_classid(
+ rta_getattr_u32(tb[TCA_FLOW_BASECLASS]),
+ b1));
if (tb[TCA_FLOW_PERTURB])
- fprintf(f, "perturb %usec ",
- rta_getattr_u32(tb[TCA_FLOW_PERTURB]));
+ print_uint(PRINT_ANY, "perturb", "perturb %usec ",
+ rta_getattr_u32(tb[TCA_FLOW_PERTURB]));
if (tb[TCA_FLOW_EMATCHES])
print_ematch(f, tb[TCA_FLOW_EMATCHES]);
if (tb[TCA_FLOW_POLICE])
tc_print_police(f, tb[TCA_FLOW_POLICE]);
if (tb[TCA_FLOW_ACT]) {
- fprintf(f, "\n");
+ print_nl();
tc_print_action(f, tb[TCA_FLOW_ACT], 0);
}
return 0;
diff --git a/tc/f_route.c b/tc/f_route.c
index e92c7985..21ca7f75 100644
--- a/tc/f_route.c
+++ b/tc/f_route.c
@@ -146,20 +146,42 @@ static int route_print_opt(struct filter_util *qu, FILE *f, struct rtattr *opt,
parse_rtattr_nested(tb, TCA_ROUTE4_MAX, opt);
if (handle)
- fprintf(f, "fh 0x%08x ", handle);
+ print_0xhex(PRINT_ANY, "fh", "fh 0x%08x ", handle);
if (handle&0x7F00)
- fprintf(f, "order %d ", (handle>>8)&0x7F);
+ print_uint(PRINT_ANY, "order", "order %d ",
+ (handle >> 8) & 0x7F);
if (tb[TCA_ROUTE4_CLASSID]) {
SPRINT_BUF(b1);
- fprintf(f, "flowid %s ", sprint_tc_classid(rta_getattr_u32(tb[TCA_ROUTE4_CLASSID]), b1));
+ print_string(PRINT_ANY, "flowid", "flowid %s ",
+ sprint_tc_classid(
+ rta_getattr_u32(tb[TCA_ROUTE4_CLASSID]),
+ b1));
+ }
+ if (tb[TCA_ROUTE4_TO]) {
+ open_json_object("to");
+ print_string(
+ PRINT_ANY, "name", "to %s ",
+ rtnl_rtrealm_n2a(rta_getattr_u32(tb[TCA_ROUTE4_TO]), b1,
+ sizeof(b1)));
+ print_uint(PRINT_JSON, "id", NULL,
+ rta_getattr_u32(tb[TCA_ROUTE4_TO]));
+ close_json_object();
+ }
+ if (tb[TCA_ROUTE4_FROM]) {
+ open_json_object("from");
+ print_string(
+ PRINT_ANY, "name", "from %s ",
+ rtnl_rtrealm_n2a(rta_getattr_u32(tb[TCA_ROUTE4_FROM]),
+ b1, sizeof(b1)));
+ print_uint(PRINT_JSON, "id", NULL,
+ rta_getattr_u32(tb[TCA_ROUTE4_FROM]));
+ close_json_object();
}
- if (tb[TCA_ROUTE4_TO])
- fprintf(f, "to %s ", rtnl_rtrealm_n2a(rta_getattr_u32(tb[TCA_ROUTE4_TO]), b1, sizeof(b1)));
- if (tb[TCA_ROUTE4_FROM])
- fprintf(f, "from %s ", rtnl_rtrealm_n2a(rta_getattr_u32(tb[TCA_ROUTE4_FROM]), b1, sizeof(b1)));
if (tb[TCA_ROUTE4_IIF])
- fprintf(f, "fromif %s", ll_index_to_name(rta_getattr_u32(tb[TCA_ROUTE4_IIF])));
+ print_string(
+ PRINT_ANY, "fromif", "fromif %s",
+ ll_index_to_name(rta_getattr_u32(tb[TCA_ROUTE4_IIF])));
if (tb[TCA_ROUTE4_POLICE])
tc_print_police(f, tb[TCA_ROUTE4_POLICE]);
if (tb[TCA_ROUTE4_ACT])
--
2.34.1
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