From: Manish Kurup <manish.kurup@broadcom.com>
To: dev@dpdk.org
Cc: kishore.padmanabha@broadcom.com,
Keegan Freyhof <keegan.freyhof@broadcom.com>,
stable@dpdk.org
Subject: [PATCH] net/bnxt: fix potential OOB string writes in debug helpers
Date: Mon, 5 Oct 2026 18:50:53 -0500 [thread overview]
Message-ID: <20261005235053.27074-1-manish.kurup@broadcom.com> (raw)
From: Keegan Freyhof <keegan.freyhof@broadcom.com>
The debug-dump helpers in tfc_mpc_debug.c (em_show, mod_decode,
enc_decode, stat_decode) and tfc_tcam_debug.c (prof_tcam_show,
wc_tcam_show) build up formatted strings by appending into a fixed
256-byte buffer without checking remaining space, allowing an
out-of-bounds write once the accumulated output exceeds the
destination buffer.
Add tfc_str_append(), a bounds-checked snprintf() wrapper that
clamps its return value to the space actually available so a chain
of appended writes can never run past the end of the buffer, and use
it in place of the unchecked buffer writes in both files. The two
prof_tcam_show()/wc_tcam_show() dump routines had been converted from
strcat() to snprintf() with raw return-value accumulation, which
reintroduces the same out-of-bounds write on any segment that gets
truncated; both now use tfc_str_append() as well, matching the
already-correct pattern in the equivalent em_show() dump routine.
Fixes: 2a04a71841d9 ("net/bnxt/tf_core: add backing store debug")
Cc: stable@dpdk.org
Signed-off-by: Keegan Freyhof <keegan.freyhof@broadcom.com>
Signed-off-by: Manish Kurup <manish.kurup@broadcom.com>
---
drivers/net/bnxt/tf_core/v3/tfc_debug.h | 1 +
drivers/net/bnxt/tf_core/v3/tfc_mpc_debug.c | 167 ++++++++----
drivers/net/bnxt/tf_core/v3/tfc_tcam_debug.c | 258 ++++++++++---------
3 files changed, 245 insertions(+), 181 deletions(-)
diff --git a/drivers/net/bnxt/tf_core/v3/tfc_debug.h b/drivers/net/bnxt/tf_core/v3/tfc_debug.h
index 86492f3a69..a1c3e0ceac 100644
--- a/drivers/net/bnxt/tf_core/v3/tfc_debug.h
+++ b/drivers/net/bnxt/tf_core/v3/tfc_debug.h
@@ -18,6 +18,7 @@ int tfc_mpc_table_write_zero(struct tfc *tfcp,
uint8_t words,
uint8_t *data);
const char *get_lrec_opcode_str(uint8_t opcode);
+size_t tfc_str_append(char *buf, size_t size, const char *fmt, ...);
void act_show(FILE *fd, struct act_info_t *act_info, uint32_t offset);
int tfc_em_show(FILE *fd, struct tfc *tfcp, uint8_t tsid, enum cfa_dir dir);
int tfc_wc_show(FILE *fd, struct tfc *tfcp, uint8_t tsid, enum cfa_dir dir);
diff --git a/drivers/net/bnxt/tf_core/v3/tfc_mpc_debug.c b/drivers/net/bnxt/tf_core/v3/tfc_mpc_debug.c
index 9731127da0..efe91b9554 100644
--- a/drivers/net/bnxt/tf_core/v3/tfc_mpc_debug.c
+++ b/drivers/net/bnxt/tf_core/v3/tfc_mpc_debug.c
@@ -3,6 +3,7 @@
* All rights reserved.
*/
#include <stdio.h>
+#include <stdarg.h>
#include <inttypes.h>
#include <math.h>
#include <string.h>
@@ -24,6 +25,33 @@
#include "cfa_bld.h"
#include "tfc_util.h"
+/* Helper function to append a formatted string to a buffer of a given size.
+ * Returns the number of chars appended (excluding the NUL terminator).
+ * If size is exceeded, a "<truncated>" marker is appended at the tail
+ * of the buffer.
+ */
+size_t tfc_str_append(char *buf, size_t size, const char *fmt, ...)
+{
+ const char *mark = "<truncated>";
+ size_t marklen = strlen(mark);
+ va_list ap;
+ int n;
+
+ if (size == 0)
+ return 0;
+ va_start(ap, fmt);
+ n = vsnprintf(buf, size, fmt, ap);
+ va_end(ap);
+ if (n < 0)
+ return 0;
+ if ((size_t)n >= size) {
+ if (size > marklen)
+ snprintf(buf + (size - 1 - marklen), marklen + 1, "%s", mark);
+ return size - 1;
+ }
+ return (size_t)n;
+}
+
int tfc_mpc_table_read(struct tfc *tfcp,
uint8_t tsid,
enum cfa_dir dir,
@@ -577,6 +605,7 @@ static void em_show(FILE *fd, struct em_info_t *em_info)
char *line2 = NULL;
char *line3 = NULL;
char *line4 = NULL;
+ size_t off1, off2, off3, off4;
char tmp1[TFC_STRING_LENGTH_64];
char tmp2[TFC_STRING_LENGTH_64];
char tmp3[TFC_STRING_LENGTH_64];
@@ -598,17 +627,17 @@ static void em_show(FILE *fd, struct em_info_t *em_info)
fprintf(fd, ":LREC: opcode:%s\n", get_lrec_opcode_str(em_info->opcode));
- snprintf(line1, TFC_STRING_LENGTH_256, "+-+--+-Epoch-+--+--+--+");
- snprintf(line2, TFC_STRING_LENGTH_256, " V|rs| 0 1 |Op|St|ah|");
- snprintf(line3, TFC_STRING_LENGTH_256, "+-+--+----+--+--+--+--+");
- snprintf(line4, TFC_STRING_LENGTH_256, " %1d %2d %4d %2d %2d %2d %2d ",
- em_info->valid,
- em_info->rec_size,
- em_info->epoch0,
- em_info->epoch1,
- em_info->opcode,
- em_info->strength,
- em_info->act_hint);
+ off1 = tfc_str_append(line1, TFC_STRING_LENGTH_256, "+-+--+-Epoch-+--+--+--+");
+ off2 = tfc_str_append(line2, TFC_STRING_LENGTH_256, " V|rs| 0 1 |Op|St|ah|");
+ off3 = tfc_str_append(line3, TFC_STRING_LENGTH_256, "+-+--+----+--+--+--+--+");
+ off4 = tfc_str_append(line4, TFC_STRING_LENGTH_256, " %1d %2d %4d %2d %2d %2d %2d ",
+ em_info->valid,
+ em_info->rec_size,
+ em_info->epoch0,
+ em_info->epoch1,
+ em_info->opcode,
+ em_info->strength,
+ em_info->act_hint);
if (em_info->opcode != 2 && em_info->opcode != 3) {
/* All but FAST */
@@ -626,10 +655,10 @@ static void em_show(FILE *fd, struct em_info_t *em_info)
em_info->destination);
}
- strcat(line1, tmp1);
- strcat(line2, tmp2);
- strcat(line3, tmp3);
- strcat(line4, tmp4);
+ off1 += tfc_str_append(line1 + off1, TFC_STRING_LENGTH_256 - off1, "%s", tmp1);
+ off2 += tfc_str_append(line2 + off2, TFC_STRING_LENGTH_256 - off2, "%s", tmp2);
+ off3 += tfc_str_append(line3 + off3, TFC_STRING_LENGTH_256 - off3, "%s", tmp3);
+ off4 += tfc_str_append(line4 + off4, TFC_STRING_LENGTH_256 - off4, "%s", tmp4);
if (em_info->opcode == 4 || em_info->opcode == 6) {
/* CT only */
@@ -668,10 +697,10 @@ static void em_show(FILE *fd, struct em_info_t *em_info)
em_info->metadata);
}
- strcat(line1, tmp1);
- strcat(line2, tmp2);
- strcat(line3, tmp3);
- strcat(line4, tmp4);
+ off1 += tfc_str_append(line1 + off1, TFC_STRING_LENGTH_256 - off1, "%s", tmp1);
+ off2 += tfc_str_append(line2 + off2, TFC_STRING_LENGTH_256 - off2, "%s", tmp2);
+ off3 += tfc_str_append(line3 + off3, TFC_STRING_LENGTH_256 - off3, "%s", tmp3);
+ off4 += tfc_str_append(line4 + off4, TFC_STRING_LENGTH_256 - off4, "%s", tmp4);
snprintf(tmp1, TFC_STRING_LENGTH_64, "-----Range-+\n");
snprintf(tmp2, TFC_STRING_LENGTH_64, "Prof| Idx |\n");
@@ -680,10 +709,10 @@ static void em_show(FILE *fd, struct em_info_t *em_info)
em_info->range_profile,
em_info->range_index);
- strcat(line1, tmp1);
- strcat(line2, tmp2);
- strcat(line3, tmp3);
- strcat(line4, tmp4);
+ off1 += tfc_str_append(line1 + off1, TFC_STRING_LENGTH_256 - off1, "%s", tmp1);
+ off2 += tfc_str_append(line2 + off2, TFC_STRING_LENGTH_256 - off2, "%s", tmp2);
+ off3 += tfc_str_append(line3 + off3, TFC_STRING_LENGTH_256 - off3, "%s", tmp3);
+ off4 += tfc_str_append(line4 + off4, TFC_STRING_LENGTH_256 - off4, "%s", tmp4);
fprintf(fd, "%s%s%s%s",
line1,
@@ -756,6 +785,7 @@ static void mod_decode(uint32_t *data, char *mod_str)
int32_t read_offset;
int32_t row = 0;
uint32_t val[8];
+ size_t mod_off;
char str[256];
int16_t vect;
uint16_t bit = 0x8000;
@@ -763,14 +793,16 @@ static void mod_decode(uint32_t *data, char *mod_str)
row_offset -= 16;
read_offset = row_offset;
mod_vector = tfc_getbits(data, read_offset, 16);
- snprintf(mod_str,
- TFC_MOD_STRING_LENGTH,
- "\nModify Record: Vector:0x%08x\n", mod_vector);
+ mod_off = tfc_str_append(mod_str,
+ TFC_MOD_STRING_LENGTH,
+ "\nModify Record: Vector:0x%08x\n", mod_vector);
for (vect = 15; vect >= 0; vect--) {
if (mod_vector & bit) {
snprintf(str, TFC_STRING_LENGTH_256, "%s: ", mod_data[vect].name);
- strcat(mod_str, str);
+ mod_off += tfc_str_append(mod_str + mod_off,
+ TFC_MOD_STRING_LENGTH - mod_off,
+ "%s", str);
for (i = 0; i < mod_data[vect].num_fields; i++) {
row_offset -= mod_data[vect].field[i].num_bits;
@@ -796,7 +828,9 @@ static void mod_decode(uint32_t *data, char *mod_str)
TFC_STRING_LENGTH_256,
"%s:0x",
mod_data[vect].field[i].name);
- strcat(mod_str, str);
+ mod_off += tfc_str_append(mod_str + mod_off,
+ TFC_MOD_STRING_LENGTH - mod_off,
+ "%s", str);
switch (mod_data[vect].field[i].num_bits) {
case 128:
@@ -805,44 +839,61 @@ static void mod_decode(uint32_t *data, char *mod_str)
TFC_STRING_LENGTH_256,
"%08x",
val[k]);
- strcat(mod_str, str);
+ mod_off += tfc_str_append(mod_str + mod_off,
+ TFC_MOD_STRING_LENGTH -
+ mod_off,
+ "%s", str);
}
break;
case 48:
snprintf(str, TFC_STRING_LENGTH_256, "%08x", val[0]);
- strcat(mod_str, str);
+ mod_off += tfc_str_append(mod_str + mod_off,
+ TFC_MOD_STRING_LENGTH - mod_off,
+ "%s", str);
snprintf(str,
TFC_STRING_LENGTH_256,
"%04x",
(val[1] & 0xffff));
- strcat(mod_str, str);
+ mod_off += tfc_str_append(mod_str + mod_off,
+ TFC_MOD_STRING_LENGTH - mod_off,
+ "%s", str);
break;
case 32:
snprintf(str, TFC_STRING_LENGTH_256, "%08x ", val[0]);
- strcat(mod_str, str);
+ mod_off += tfc_str_append(mod_str + mod_off,
+ TFC_MOD_STRING_LENGTH - mod_off,
+ "%s", str);
break;
case 16:
snprintf(str, TFC_STRING_LENGTH_256, "%04x ", val[0]);
- strcat(mod_str, str);
+ mod_off += tfc_str_append(mod_str + mod_off,
+ TFC_MOD_STRING_LENGTH - mod_off,
+ "%s", str);
break;
default:
snprintf(str, TFC_STRING_LENGTH_256, "%04x ",
(val[0] &
((1 << mod_data[vect].field[i].num_bits) - 1)));
- strcat(mod_str, str);
+ mod_off += tfc_str_append(mod_str + mod_off,
+ TFC_MOD_STRING_LENGTH - mod_off,
+ "%s", str);
break;
}
}
snprintf(str, TFC_STRING_LENGTH_256, "\n");
- strcat(mod_str, str);
+ mod_off += tfc_str_append(mod_str + mod_off,
+ TFC_MOD_STRING_LENGTH - mod_off,
+ "%s", str);
}
bit = bit >> 1;
}
snprintf(str, TFC_STRING_LENGTH_256, "\n");
- strcat(mod_str, str);
+ mod_off += tfc_str_append(mod_str + mod_off,
+ TFC_MOD_STRING_LENGTH - mod_off,
+ "%s", str);
}
static void enc_decode(uint32_t *data, char *enc_str)
@@ -856,6 +907,7 @@ static void enc_decode(uint32_t *data, char *enc_str)
uint8_t l3;
uint8_t l4;
uint8_t tunnel;
+ size_t off_s;
vector = tfc_getbits(data, offset, 16);
offset += 16;
@@ -866,9 +918,9 @@ static void enc_decode(uint32_t *data, char *enc_str)
l4 = ((vector >> 10) & 0x7);
tunnel = ((vector >> 13) & 0x7);
- snprintf(enc_str,
- TFC_ENC_STRING_LENGTH,
- "Encap Record: vector:0x%04x\n", vector);
+ off_s = tfc_str_append(enc_str,
+ TFC_ENC_STRING_LENGTH,
+ "Encap Record: vector:0x%04x\n", vector);
snprintf(str, TFC_STRING_LENGTH_64,
"Valid:%d EC:%d VTAG:0x%01x L2:%d L3:0x%01x L4:0x%01x Tunnel:0x%01x\n",
@@ -880,11 +932,11 @@ static void enc_decode(uint32_t *data, char *enc_str)
l4,
tunnel);
- strcat(enc_str, str);
+ off_s += tfc_str_append(enc_str + off_s, TFC_ENC_STRING_LENGTH - off_s, "%s", str);
if (l2) { /* L2 */
snprintf(str, TFC_STRING_LENGTH_64, "L2:\n");
- strcat(enc_str, str);
+ off_s += tfc_str_append(enc_str + off_s, TFC_ENC_STRING_LENGTH - off_s, "%s", str);
val[0] = tfc_getbits(data, offset, 32);
offset += 32;
@@ -892,22 +944,22 @@ static void enc_decode(uint32_t *data, char *enc_str)
offset += 16;
snprintf(str, TFC_STRING_LENGTH_64, "DMAC:0x%08x%04x\n", val[0], val[1]);
- strcat(enc_str, str);
+ off_s += tfc_str_append(enc_str + off_s, TFC_ENC_STRING_LENGTH - off_s, "%s", str);
}
if (l3) { /* L3 */
snprintf(str, TFC_STRING_LENGTH_64, "L3:\n");
- strcat(enc_str, str);
+ off_s += tfc_str_append(enc_str + off_s, TFC_ENC_STRING_LENGTH - off_s, "%s", str);
}
if (l4) { /* L4 */
snprintf(str, TFC_STRING_LENGTH_64, "L4:\n");
- strcat(enc_str, str);
+ off_s += tfc_str_append(enc_str + off_s, TFC_ENC_STRING_LENGTH - off_s, "%s", str);
}
if (tunnel) { /* Tunnel */
snprintf(str, TFC_STRING_LENGTH_64, "Tunnel:\n");
- strcat(enc_str, str);
+ off_s += tfc_str_append(enc_str + off_s, TFC_ENC_STRING_LENGTH - off_s, "%s", str);
}
}
@@ -1161,13 +1213,14 @@ static void stat_decode(char *str,
uint64_t meter_pkt_cnt;
uint64_t meter_byte_cnt;
uint32_t timestamp;
+ size_t str_off;
char tmp0[96];
/* Common fields */
- snprintf(str,
- TFC_STAT_STRING_LENGTH,
- STATS_COMMON_FMT,
- stat_num, stats->pkt_cnt, stats->byte_cnt);
+ str_off = tfc_str_append(str,
+ TFC_STAT_STRING_LENGTH,
+ STATS_COMMON_FMT,
+ stat_num, stats->pkt_cnt, stats->byte_cnt);
switch (stat_ctr_type) {
case CFA_BLD_STAT_COUNTER_SIZE_16B:
@@ -1180,7 +1233,9 @@ static void stat_decode(char *str,
STATS_TCP_FLAGS_FMT,
stats->t.c_24b.tcp_flags,
timestamp);
- strcat(str, tmp0);
+ str_off += tfc_str_append(str + str_off,
+ TFC_STAT_STRING_LENGTH - str_off,
+ "%s", tmp0);
break;
case CFA_BLD_STAT_COUNTER_SIZE_32B:
snprintf(tmp0,
@@ -1188,7 +1243,9 @@ static void stat_decode(char *str,
STATS_METER_FMT,
stats->t.c_32b.meter_pkt_cnt,
stats->t.c_32b.meter_byte_cnt);
- strcat(str, tmp0);
+ str_off += tfc_str_append(str + str_off,
+ TFC_STAT_STRING_LENGTH - str_off,
+ "%s", tmp0);
break;
case CFA_BLD_STAT_COUNTER_SIZE_32B_ALL:
meter_pkt_cnt = stats->t.c_32b_all.meter_pkt_cnt;
@@ -1201,14 +1258,18 @@ static void stat_decode(char *str,
meter_byte_cnt,
stats->t.c_32b_all.tcp_flags,
timestamp);
- strcat(str, tmp0);
+ str_off += tfc_str_append(str + str_off,
+ TFC_STAT_STRING_LENGTH - str_off,
+ "%s", tmp0);
break;
default:
/* Should never happen since type is 2 bits in size */
snprintf(tmp0,
TFC_STRING_LENGTH_96,
"Unknown counter type %d\n", stat_ctr_type);
- strcat(str, tmp0);
+ str_off += tfc_str_append(str + str_off,
+ TFC_STAT_STRING_LENGTH - str_off,
+ "%s", tmp0);
break;
}
}
diff --git a/drivers/net/bnxt/tf_core/v3/tfc_tcam_debug.c b/drivers/net/bnxt/tf_core/v3/tfc_tcam_debug.c
index 8da27b8e81..2a4b82da5b 100644
--- a/drivers/net/bnxt/tf_core/v3/tfc_tcam_debug.c
+++ b/drivers/net/bnxt/tf_core/v3/tfc_tcam_debug.c
@@ -1003,6 +1003,7 @@ static void prof_tcam_show(FILE *fd,
struct prof_tcam_key_t *ptmask_info,
struct prof_tcam_remap_t *ptrmp_info)
{
+ size_t offh = 0, off1 = 0, off2 = 0, off3 = 0, off4 = 0, off5 = 0;
char tmph[TFC_STRING_LENGTH_64];
char tmp1[TFC_STRING_LENGTH_64];
char tmp2[TFC_STRING_LENGTH_64];
@@ -1034,13 +1035,13 @@ static void prof_tcam_show(FILE *fd,
return;
}
- snprintf(line1, TFC_STRING_LENGTH_256, "+-+--+----+----+----+---------+------"
+ tfc_str_append(line1, TFC_STRING_LENGTH_256, "+-+--+----+----+----+---------+------"
"+--------+-------+-----+---+---+---+\n");
- snprintf(line2, TFC_STRING_LENGTH_256, "|V|Sp|lpbk|ptyp|rcyc| MD |aggerr"
+ tfc_str_append(line2, TFC_STRING_LENGTH_256, "|V|Sp|lpbk|ptyp|rcyc| MD |aggerr"
"|l2ipfunc|profunc|hrnxt|IHT|IHG|IIT|\n");
- snprintf(line3, TFC_STRING_LENGTH_256, "+-+--+----+----+----+---------+------"
+ tfc_str_append(line3, TFC_STRING_LENGTH_256, "+-+--+----+----+----+---------+------"
"+--------+-------+-----+---+---+---+\n");
- snprintf(line4, TFC_STRING_LENGTH_256, " %01x x%01x %01x x%01x x%01x x%08x"
+ tfc_str_append(line4, TFC_STRING_LENGTH_256, " %01x x%01x %01x x%01x x%01x x%08x"
" %01x x%02x x%02x x%01x x%01x x%01x %01x key\n",
ptkey_info->valid,
ptkey_info->spare,
@@ -1055,7 +1056,7 @@ static void prof_tcam_show(FILE *fd,
ptkey_info->int_hdr_type,
ptkey_info->int_hdr_group,
ptkey_info->int_ifa_tail);
- snprintf(line5, TFC_STRING_LENGTH_256, " %01x x%01x %01x x%01x x%01x x%08x"
+ tfc_str_append(line5, TFC_STRING_LENGTH_256, " %01x x%01x %01x x%01x x%01x x%08x"
" %01x x%02x x%02x x%01x x%01x x%01x %01x mask\n",
ptmask_info->valid,
ptmask_info->spare,
@@ -1077,22 +1078,22 @@ static void prof_tcam_show(FILE *fd,
line5,
line4);
- snprintf(lineh, TFC_STRING_LENGTH_256, "|OTL2 hdr |");
- snprintf(line1, TFC_STRING_LENGTH_256, "+-+--+---+--+---+");
- snprintf(line2, TFC_STRING_LENGTH_256, "|V|HT|UMB|VT|2VT|");
- snprintf(line3, TFC_STRING_LENGTH_256, "+-+--+---+--+---+");
- snprintf(line4, TFC_STRING_LENGTH_256, " %01x x%01x x%01x %01x %01x ",
- ptkey_info->otl2_hdr_valid,
- ptkey_info->otl2_hdr_type,
- ptkey_info->otl2_uc_mc_bc,
- ptkey_info->otl2_vtag_present,
- ptkey_info->otl2_two_vtags);
- snprintf(line5, TFC_STRING_LENGTH_256, " %01x x%01x x%01x %01x %01x ",
- ptmask_info->otl2_hdr_valid,
- ptmask_info->otl2_hdr_type,
- ptmask_info->otl2_uc_mc_bc,
- ptmask_info->otl2_vtag_present,
- ptmask_info->otl2_two_vtags);
+ offh = tfc_str_append(lineh, TFC_STRING_LENGTH_256, "|OTL2 hdr |");
+ off1 = tfc_str_append(line1, TFC_STRING_LENGTH_256, "+-+--+---+--+---+");
+ off2 = tfc_str_append(line2, TFC_STRING_LENGTH_256, "|V|HT|UMB|VT|2VT|");
+ off3 = tfc_str_append(line3, TFC_STRING_LENGTH_256, "+-+--+---+--+---+");
+ off4 = tfc_str_append(line4, TFC_STRING_LENGTH_256, " %01x x%01x x%01x %01x %01x ",
+ ptkey_info->otl2_hdr_valid,
+ ptkey_info->otl2_hdr_type,
+ ptkey_info->otl2_uc_mc_bc,
+ ptkey_info->otl2_vtag_present,
+ ptkey_info->otl2_two_vtags);
+ off5 = tfc_str_append(line5, TFC_STRING_LENGTH_256, " %01x x%01x x%01x %01x %01x ",
+ ptmask_info->otl2_hdr_valid,
+ ptmask_info->otl2_hdr_type,
+ ptmask_info->otl2_uc_mc_bc,
+ ptmask_info->otl2_vtag_present,
+ ptmask_info->otl2_two_vtags);
snprintf(tmph, TFC_STRING_LENGTH_64, "OTL3 hdr |");
snprintf(tmp1, TFC_STRING_LENGTH_64, "-+--+--+--+");
@@ -1109,12 +1110,12 @@ static void prof_tcam_show(FILE *fd,
ptmask_info->otl3_hdr_type,
ptmask_info->otl3_hdr_isip);
- strcat(lineh, tmph);
- strcat(line1, tmp1);
- strcat(line2, tmp2);
- strcat(line3, tmp3);
- strcat(line4, tmp4);
- strcat(line5, tmp5);
+ offh += tfc_str_append(lineh + offh, TFC_STRING_LENGTH_256 - offh, "%s", tmph);
+ off1 += tfc_str_append(line1 + off1, TFC_STRING_LENGTH_256 - off1, "%s", tmp1);
+ off2 += tfc_str_append(line2 + off2, TFC_STRING_LENGTH_256 - off2, "%s", tmp2);
+ off3 += tfc_str_append(line3 + off3, TFC_STRING_LENGTH_256 - off3, "%s", tmp3);
+ off4 += tfc_str_append(line4 + off4, TFC_STRING_LENGTH_256 - off4, "%s", tmp4);
+ off5 += tfc_str_append(line5 + off5, TFC_STRING_LENGTH_256 - off5, "%s", tmp5);
snprintf(tmph, TFC_STRING_LENGTH_64, "OTL4 hdr |");
snprintf(tmp1, TFC_STRING_LENGTH_64, "-+--+--+--+");
@@ -1131,12 +1132,12 @@ static void prof_tcam_show(FILE *fd,
ptmask_info->otl4_hdr_type,
ptmask_info->otl4_hdr_is_udp_tcp);
- strcat(lineh, tmph);
- strcat(line1, tmp1);
- strcat(line2, tmp2);
- strcat(line3, tmp3);
- strcat(line4, tmp4);
- strcat(line5, tmp5);
+ offh += tfc_str_append(lineh + offh, TFC_STRING_LENGTH_256 - offh, "%s", tmph);
+ off1 += tfc_str_append(line1 + off1, TFC_STRING_LENGTH_256 - off1, "%s", tmp1);
+ off2 += tfc_str_append(line2 + off2, TFC_STRING_LENGTH_256 - off2, "%s", tmp2);
+ off3 += tfc_str_append(line3 + off3, TFC_STRING_LENGTH_256 - off3, "%s", tmp3);
+ off4 += tfc_str_append(line4 + off4, TFC_STRING_LENGTH_256 - off4, "%s", tmp4);
+ off5 += tfc_str_append(line5 + off5, TFC_STRING_LENGTH_256 - off5, "%s", tmp5);
snprintf(tmph, TFC_STRING_LENGTH_64, "OT hdr |\n");
snprintf(tmp1, TFC_STRING_LENGTH_64, "-+--+---+---+\n");
@@ -1153,12 +1154,12 @@ static void prof_tcam_show(FILE *fd,
ptmask_info->ot_hdr_type,
ptmask_info->ot_hdr_flags);
- strcat(lineh, tmph);
- strcat(line1, tmp1);
- strcat(line2, tmp2);
- strcat(line3, tmp3);
- strcat(line4, tmp4);
- strcat(line5, tmp5);
+ offh += tfc_str_append(lineh + offh, TFC_STRING_LENGTH_256 - offh, "%s", tmph);
+ off1 += tfc_str_append(line1 + off1, TFC_STRING_LENGTH_256 - off1, "%s", tmp1);
+ off2 += tfc_str_append(line2 + off2, TFC_STRING_LENGTH_256 - off2, "%s", tmp2);
+ off3 += tfc_str_append(line3 + off3, TFC_STRING_LENGTH_256 - off3, "%s", tmp3);
+ off4 += tfc_str_append(line4 + off4, TFC_STRING_LENGTH_256 - off4, "%s", tmp4);
+ off5 += tfc_str_append(line5 + off5, TFC_STRING_LENGTH_256 - off5, "%s", tmp5);
fprintf(fd, "%s%s%s%s%s%s",
lineh,
@@ -1168,22 +1169,22 @@ static void prof_tcam_show(FILE *fd,
line5,
line4);
- snprintf(lineh, TFC_STRING_LENGTH_256, "|TL2 hdr |");
- snprintf(line1, TFC_STRING_LENGTH_256, "+-+--+---+--+---+");
- snprintf(line2, TFC_STRING_LENGTH_256, "|V|HT|UMB|VT|2VT|");
- snprintf(line3, TFC_STRING_LENGTH_256, "+-+--+---+--+---+");
- snprintf(line4, TFC_STRING_LENGTH_256, " %01x x%01x x%01x %01x %01x ",
- ptkey_info->tl2_hdr_valid,
- ptkey_info->tl2_hdr_type,
- ptkey_info->tl2_uc_mc_bc,
- ptkey_info->tl2_vtag_present,
- ptkey_info->tl2_two_vtags);
- snprintf(line5, TFC_STRING_LENGTH_256, " %01x x%01x x%01x %01x %01x ",
- ptmask_info->tl2_hdr_valid,
- ptmask_info->tl2_hdr_type,
- ptmask_info->tl2_uc_mc_bc,
- ptmask_info->tl2_vtag_present,
- ptmask_info->tl2_two_vtags);
+ offh = tfc_str_append(lineh, TFC_STRING_LENGTH_256, "|TL2 hdr |");
+ off1 = tfc_str_append(line1, TFC_STRING_LENGTH_256, "+-+--+---+--+---+");
+ off2 = tfc_str_append(line2, TFC_STRING_LENGTH_256, "|V|HT|UMB|VT|2VT|");
+ off3 = tfc_str_append(line3, TFC_STRING_LENGTH_256, "+-+--+---+--+---+");
+ off4 = tfc_str_append(line4, TFC_STRING_LENGTH_256, " %01x x%01x x%01x %01x %01x ",
+ ptkey_info->tl2_hdr_valid,
+ ptkey_info->tl2_hdr_type,
+ ptkey_info->tl2_uc_mc_bc,
+ ptkey_info->tl2_vtag_present,
+ ptkey_info->tl2_two_vtags);
+ off5 = tfc_str_append(line5, TFC_STRING_LENGTH_256, " %01x x%01x x%01x %01x %01x ",
+ ptmask_info->tl2_hdr_valid,
+ ptmask_info->tl2_hdr_type,
+ ptmask_info->tl2_uc_mc_bc,
+ ptmask_info->tl2_vtag_present,
+ ptmask_info->tl2_two_vtags);
snprintf(tmph, TFC_STRING_LENGTH_64, "TL3 hdr |");
snprintf(tmp1, TFC_STRING_LENGTH_64, "-+--+--+--+");
@@ -1200,12 +1201,12 @@ static void prof_tcam_show(FILE *fd,
ptmask_info->tl3_hdr_type,
ptmask_info->tl3_hdr_isip);
- strcat(lineh, tmph);
- strcat(line1, tmp1);
- strcat(line2, tmp2);
- strcat(line3, tmp3);
- strcat(line4, tmp4);
- strcat(line5, tmp5);
+ offh += tfc_str_append(lineh + offh, TFC_STRING_LENGTH_256 - offh, "%s", tmph);
+ off1 += tfc_str_append(line1 + off1, TFC_STRING_LENGTH_256 - off1, "%s", tmp1);
+ off2 += tfc_str_append(line2 + off2, TFC_STRING_LENGTH_256 - off2, "%s", tmp2);
+ off3 += tfc_str_append(line3 + off3, TFC_STRING_LENGTH_256 - off3, "%s", tmp3);
+ off4 += tfc_str_append(line4 + off4, TFC_STRING_LENGTH_256 - off4, "%s", tmp4);
+ off5 += tfc_str_append(line5 + off5, TFC_STRING_LENGTH_256 - off5, "%s", tmp5);
snprintf(tmph, TFC_STRING_LENGTH_64, "TL4 hdr |");
snprintf(tmp1, TFC_STRING_LENGTH_64, "-+--+--+--+");
@@ -1222,12 +1223,12 @@ static void prof_tcam_show(FILE *fd,
ptmask_info->tl4_hdr_type,
ptmask_info->tl4_hdr_is_udp_tcp);
- strcat(lineh, tmph);
- strcat(line1, tmp1);
- strcat(line2, tmp2);
- strcat(line3, tmp3);
- strcat(line4, tmp4);
- strcat(line5, tmp5);
+ offh += tfc_str_append(lineh + offh, TFC_STRING_LENGTH_256 - offh, "%s", tmph);
+ off1 += tfc_str_append(line1 + off1, TFC_STRING_LENGTH_256 - off1, "%s", tmp1);
+ off2 += tfc_str_append(line2 + off2, TFC_STRING_LENGTH_256 - off2, "%s", tmp2);
+ off3 += tfc_str_append(line3 + off3, TFC_STRING_LENGTH_256 - off3, "%s", tmp3);
+ off4 += tfc_str_append(line4 + off4, TFC_STRING_LENGTH_256 - off4, "%s", tmp4);
+ off5 += tfc_str_append(line5 + off5, TFC_STRING_LENGTH_256 - off5, "%s", tmp5);
snprintf(tmph, TFC_STRING_LENGTH_64, "T hdr |\n");
snprintf(tmp1, TFC_STRING_LENGTH_64, "-+--+---+---+\n");
@@ -1244,12 +1245,12 @@ static void prof_tcam_show(FILE *fd,
ptmask_info->t_hdr_type,
ptmask_info->t_hdr_flags);
- strcat(lineh, tmph);
- strcat(line1, tmp1);
- strcat(line2, tmp2);
- strcat(line3, tmp3);
- strcat(line4, tmp4);
- strcat(line5, tmp5);
+ offh += tfc_str_append(lineh + offh, TFC_STRING_LENGTH_256 - offh, "%s", tmph);
+ off1 += tfc_str_append(line1 + off1, TFC_STRING_LENGTH_256 - off1, "%s", tmp1);
+ off2 += tfc_str_append(line2 + off2, TFC_STRING_LENGTH_256 - off2, "%s", tmp2);
+ off3 += tfc_str_append(line3 + off3, TFC_STRING_LENGTH_256 - off3, "%s", tmp3);
+ off4 += tfc_str_append(line4 + off4, TFC_STRING_LENGTH_256 - off4, "%s", tmp4);
+ off5 += tfc_str_append(line5 + off5, TFC_STRING_LENGTH_256 - off5, "%s", tmp5);
fprintf(fd, "%s%s%s%s%s%s",
lineh,
@@ -1259,22 +1260,22 @@ static void prof_tcam_show(FILE *fd,
line5,
line4);
- snprintf(lineh, TFC_STRING_LENGTH_256, "|L2 hdr |");
- snprintf(line1, TFC_STRING_LENGTH_256, "+-+--+---+--+---+");
- snprintf(line2, TFC_STRING_LENGTH_256, "|V|HT|UMB|VT|2VT|");
- snprintf(line3, TFC_STRING_LENGTH_256, "+-+--+---+--+---+");
- snprintf(line4, TFC_STRING_LENGTH_256, " %01x x%01x x%01x %01x %01x ",
- ptkey_info->l2_hdr_valid,
- ptkey_info->l2_hdr_type,
- ptkey_info->l2_uc_mc_bc,
- ptkey_info->l2_vtag_present,
- ptkey_info->l2_two_vtags);
- snprintf(line5, TFC_STRING_LENGTH_256, " %01x x%01x x%01x %01x %01x ",
- ptmask_info->l2_hdr_valid,
- ptmask_info->l2_hdr_type,
- ptmask_info->l2_uc_mc_bc,
- ptmask_info->l2_vtag_present,
- ptmask_info->l2_two_vtags);
+ offh = tfc_str_append(lineh, TFC_STRING_LENGTH_256, "|L2 hdr |");
+ off1 = tfc_str_append(line1, TFC_STRING_LENGTH_256, "+-+--+---+--+---+");
+ off2 = tfc_str_append(line2, TFC_STRING_LENGTH_256, "|V|HT|UMB|VT|2VT|");
+ off3 = tfc_str_append(line3, TFC_STRING_LENGTH_256, "+-+--+---+--+---+");
+ off4 = tfc_str_append(line4, TFC_STRING_LENGTH_256, " %01x x%01x x%01x %01x %01x ",
+ ptkey_info->l2_hdr_valid,
+ ptkey_info->l2_hdr_type,
+ ptkey_info->l2_uc_mc_bc,
+ ptkey_info->l2_vtag_present,
+ ptkey_info->l2_two_vtags);
+ off5 = tfc_str_append(line5, TFC_STRING_LENGTH_256, " %01x x%01x x%01x %01x %01x ",
+ ptmask_info->l2_hdr_valid,
+ ptmask_info->l2_hdr_type,
+ ptmask_info->l2_uc_mc_bc,
+ ptmask_info->l2_vtag_present,
+ ptmask_info->l2_two_vtags);
snprintf(tmph, TFC_STRING_LENGTH_64, "L3 hdr |");
snprintf(tmp1, TFC_STRING_LENGTH_64, "-+--+--+--+----+");
@@ -1293,12 +1294,12 @@ static void prof_tcam_show(FILE *fd,
ptmask_info->l3_hdr_isip,
ptmask_info->l3_protocol);
- strcat(lineh, tmph);
- strcat(line1, tmp1);
- strcat(line2, tmp2);
- strcat(line3, tmp3);
- strcat(line4, tmp4);
- strcat(line5, tmp5);
+ offh += tfc_str_append(lineh + offh, TFC_STRING_LENGTH_256 - offh, "%s", tmph);
+ off1 += tfc_str_append(line1 + off1, TFC_STRING_LENGTH_256 - off1, "%s", tmp1);
+ off2 += tfc_str_append(line2 + off2, TFC_STRING_LENGTH_256 - off2, "%s", tmp2);
+ off3 += tfc_str_append(line3 + off3, TFC_STRING_LENGTH_256 - off3, "%s", tmp3);
+ off4 += tfc_str_append(line4 + off4, TFC_STRING_LENGTH_256 - off4, "%s", tmp4);
+ off5 += tfc_str_append(line5 + off5, TFC_STRING_LENGTH_256 - off5, "%s", tmp5);
snprintf(tmph, TFC_STRING_LENGTH_64, "L4 hdr |\n");
snprintf(tmp1, TFC_STRING_LENGTH_64, "-+--+--+--+---+----+---+\n");
@@ -1321,12 +1322,12 @@ static void prof_tcam_show(FILE *fd,
ptmask_info->l4_flags,
ptmask_info->l4_dcn_present);
- strcat(lineh, tmph);
- strcat(line1, tmp1);
- strcat(line2, tmp2);
- strcat(line3, tmp3);
- strcat(line4, tmp4);
- strcat(line5, tmp5);
+ offh += tfc_str_append(lineh + offh, TFC_STRING_LENGTH_256 - offh, "%s", tmph);
+ off1 += tfc_str_append(line1 + off1, TFC_STRING_LENGTH_256 - off1, "%s", tmp1);
+ off2 += tfc_str_append(line2 + off2, TFC_STRING_LENGTH_256 - off2, "%s", tmp2);
+ off3 += tfc_str_append(line3 + off3, TFC_STRING_LENGTH_256 - off3, "%s", tmp3);
+ off4 += tfc_str_append(line4 + off4, TFC_STRING_LENGTH_256 - off4, "%s", tmp4);
+ off5 += tfc_str_append(line5 + off5, TFC_STRING_LENGTH_256 - off5, "%s", tmp5);
fprintf(fd, "%s%s%s%s%s%s",
lineh,
@@ -1337,10 +1338,10 @@ static void prof_tcam_show(FILE *fd,
line4);
fputs("\n:Profile TCAM: remap\n", fd);
- snprintf(line1, TFC_STRING_LENGTH_256, "+-+--+---+---+---+--+---+---+---+\n");
- snprintf(line2, TFC_STRING_LENGTH_256, "|B|EM|PID|KId|Scp|WC|PID|KId|Scp|\n");
- snprintf(line3, TFC_STRING_LENGTH_256, "+-+--+---+---+---+--+---+---+---+\n");
- snprintf(line4, TFC_STRING_LENGTH_256, " %c %c x%02x x%02x x%02x %c x%02x x%02x x%02x\n",
+ tfc_str_append(line1, TFC_STRING_LENGTH_256, "+-+--+---+---+---+--+---+---+---+\n");
+ tfc_str_append(line2, TFC_STRING_LENGTH_256, "|B|EM|PID|KId|Scp|WC|PID|KId|Scp|\n");
+ tfc_str_append(line3, TFC_STRING_LENGTH_256, "+-+--+---+---+---+--+---+---+---+\n");
+ tfc_str_append(line4, TFC_STRING_LENGTH_256, " %c %c x%02x x%02x x%02x %c x%02x x%02x x%02x\n",
ptrmp_info->pl_byp_lkup_en ? 'Y' : 'N',
ptrmp_info->em_search_en ? 'Y' : 'N',
ptrmp_info->em_profile_id,
@@ -1451,6 +1452,7 @@ static void wc_tcam_show(FILE *fd, struct wc_lrec_t *wc_info)
char *line2 = NULL;
char *line3 = NULL;
char *line4 = NULL;
+ size_t off1, off2, off3, off4;
char tmp1[TFC_STRING_LENGTH_64];
char tmp2[TFC_STRING_LENGTH_64];
char tmp3[TFC_STRING_LENGTH_64];
@@ -1472,17 +1474,17 @@ static void wc_tcam_show(FILE *fd, struct wc_lrec_t *wc_info)
fprintf(fd, ":LREC: opcode:%s\n", get_lrec_opcode_str(wc_info->opcode));
- snprintf(line1, TFC_STRING_LENGTH_256, "+-+--+-Epoch-+--+--+--+");
- snprintf(line2, TFC_STRING_LENGTH_256, " V|rs| 0 1 |Op|St|ah|");
- snprintf(line3, TFC_STRING_LENGTH_256, "+-+--+----+--+--+--+--+");
- snprintf(line4, TFC_STRING_LENGTH_256, " %1d %2d %4d %2d %2d %2d %2d ",
- wc_info->valid,
- wc_info->rec_size,
- wc_info->epoch0,
- wc_info->epoch1,
- wc_info->opcode,
- wc_info->strength,
- wc_info->act_hint);
+ off1 = tfc_str_append(line1, TFC_STRING_LENGTH_256, "+-+--+-Epoch-+--+--+--+");
+ off2 = tfc_str_append(line2, TFC_STRING_LENGTH_256, " V|rs| 0 1 |Op|St|ah|");
+ off3 = tfc_str_append(line3, TFC_STRING_LENGTH_256, "+-+--+----+--+--+--+--+");
+ off4 = tfc_str_append(line4, TFC_STRING_LENGTH_256, " %1d %2d %4d %2d %2d %2d %2d ",
+ wc_info->valid,
+ wc_info->rec_size,
+ wc_info->epoch0,
+ wc_info->epoch1,
+ wc_info->opcode,
+ wc_info->strength,
+ wc_info->act_hint);
if (wc_info->opcode != 2 && wc_info->opcode != 3) {
/* All but FAST */
@@ -1500,10 +1502,10 @@ static void wc_tcam_show(FILE *fd, struct wc_lrec_t *wc_info)
wc_info->destination);
}
- strcat(line1, tmp1);
- strcat(line2, tmp2);
- strcat(line3, tmp3);
- strcat(line4, tmp4);
+ off1 += tfc_str_append(line1 + off1, TFC_STRING_LENGTH_256 - off1, "%s", tmp1);
+ off2 += tfc_str_append(line2 + off2, TFC_STRING_LENGTH_256 - off2, "%s", tmp2);
+ off3 += tfc_str_append(line3 + off3, TFC_STRING_LENGTH_256 - off3, "%s", tmp3);
+ off4 += tfc_str_append(line4 + off4, TFC_STRING_LENGTH_256 - off4, "%s", tmp4);
if (wc_info->opcode == 4 || wc_info->opcode == 6) {
/* CT only */
@@ -1542,10 +1544,10 @@ static void wc_tcam_show(FILE *fd, struct wc_lrec_t *wc_info)
wc_info->metadata);
}
- strcat(line1, tmp1);
- strcat(line2, tmp2);
- strcat(line3, tmp3);
- strcat(line4, tmp4);
+ off1 += tfc_str_append(line1 + off1, TFC_STRING_LENGTH_256 - off1, "%s", tmp1);
+ off2 += tfc_str_append(line2 + off2, TFC_STRING_LENGTH_256 - off2, "%s", tmp2);
+ off3 += tfc_str_append(line3 + off3, TFC_STRING_LENGTH_256 - off3, "%s", tmp3);
+ off4 += tfc_str_append(line4 + off4, TFC_STRING_LENGTH_256 - off4, "%s", tmp4);
snprintf(tmp1, TFC_STRING_LENGTH_64, "-----Range-+\n");
snprintf(tmp2, TFC_STRING_LENGTH_64, "Prof| Idx |\n");
@@ -1554,10 +1556,10 @@ static void wc_tcam_show(FILE *fd, struct wc_lrec_t *wc_info)
wc_info->range_profile,
wc_info->range_index);
- strcat(line1, tmp1);
- strcat(line2, tmp2);
- strcat(line3, tmp3);
- strcat(line4, tmp4);
+ off1 += tfc_str_append(line1 + off1, TFC_STRING_LENGTH_256 - off1, "%s", tmp1);
+ off2 += tfc_str_append(line2 + off2, TFC_STRING_LENGTH_256 - off2, "%s", tmp2);
+ off3 += tfc_str_append(line3 + off3, TFC_STRING_LENGTH_256 - off3, "%s", tmp3);
+ off4 += tfc_str_append(line4 + off4, TFC_STRING_LENGTH_256 - off4, "%s", tmp4);
fprintf(fd, "%s%s%s%s",
line1,
--
2.31.1
reply other threads:[~2026-10-05 23:51 UTC|newest]
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