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[204.195.120.218]) by smtp.gmail.com with ESMTPSA id t31-20020a63445f000000b00412a708f38asm9434437pgk.35.2022.09.25.16.34.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 25 Sep 2022 16:34:12 -0700 (PDT) From: Stephen Hemminger To: dev@dpdk.org Cc: Stephen Hemminger , koncept1@gmail.com, Reshma Pattan Subject: [PATCH] dumpcap: fix list interfaces Date: Sun, 25 Sep 2022 16:34:10 -0700 Message-Id: <20220925233410.98051-1-stephen@networkplumber.org> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org The change to do argument process before EAL init broke the support of list-interfaces option. Fix by setting flag and doing list-interfaces later. Fixes: a8dde09f97df ("app/dumpcap: allow help/version without primary process") Cc: koncept1@gmail.com Signed-off-by: Stephen Hemminger --- app/dumpcap/main.c | 19 +++++++++++++------ 1 file changed, 13 insertions(+), 6 deletions(-) diff --git a/app/dumpcap/main.c b/app/dumpcap/main.c index a6041d4ff495..490a0f050bc8 100644 --- a/app/dumpcap/main.c +++ b/app/dumpcap/main.c @@ -63,6 +63,8 @@ static unsigned int ring_size = 2048; static const char *capture_comment; static uint32_t snaplen = RTE_MBUF_DEFAULT_BUF_SIZE; static bool dump_bpf; +static bool show_interfaces; + static struct { uint64_t duration; /* nanoseconds */ unsigned long packets; /* number of packets in file */ @@ -256,7 +258,7 @@ static void select_interface(const char *arg) } /* Display list of possible interfaces that can be used. */ -static void show_interfaces(void) +static void dump_interfaces(void) { char name[RTE_ETH_NAME_MAX_LEN]; uint16_t p; @@ -266,6 +268,8 @@ static void show_interfaces(void) continue; printf("%u. %s\n", p, name); } + + exit(0); } static void compile_filter(void) @@ -353,8 +357,8 @@ static void parse_opts(int argc, char **argv) dump_bpf = true; break; case 'D': - show_interfaces(); - exit(0); + show_interfaces = true; + break; case 'f': filter_str = optarg; break; @@ -529,9 +533,6 @@ static void dpdk_init(void) if (rte_eal_init(eal_argc, eal_argv) < 0) rte_exit(EXIT_FAILURE, "EAL init failed: is primary process running?\n"); - - if (rte_eth_dev_count_avail() == 0) - rte_exit(EXIT_FAILURE, "No Ethernet ports found\n"); } /* Create packet ring shared between callbacks and process */ @@ -789,6 +790,12 @@ int main(int argc, char **argv) parse_opts(argc, argv); dpdk_init(); + if (show_interfaces) + dump_interfaces(); + + if (rte_eth_dev_count_avail() == 0) + rte_exit(EXIT_FAILURE, "No Ethernet ports found\n"); + if (filter_str) compile_filter(); -- 2.35.1