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[84.238.136.197]) by smtp.gmail.com with ESMTPSA id i19sm4710429edx.54.2021.08.28.04.08.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 28 Aug 2021 04:08:18 -0700 (PDT) From: Nikolay Aleksandrov To: netdev@vger.kernel.org Cc: roopa@nvidia.com, dsahern@gmail.com, stephen@networkplumber.org, Joachim Wiberg , Nikolay Aleksandrov Subject: [PATCH iproute2-next v2 04/19] bridge: vlan: add support to show global vlan options Date: Sat, 28 Aug 2021 14:07:50 +0300 Message-Id: <20210828110805.463429-5-razor@blackwall.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210828110805.463429-1-razor@blackwall.org> References: <20210828110805.463429-1-razor@blackwall.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Nikolay Aleksandrov Add support for new bridge vlan command grouping called global which operates on global options. The first command it supports is "show". To do that we update print_vlan_rtm to recognize the global vlan options attribute and parse it properly. Man page and help are also updated with the new command. Syntax is: $ bridge vlan global show [ vid VID ] [ dev DEV ] Signed-off-by: Nikolay Aleksandrov --- v2: previously this was patch 02 which is now split in 02-04 use strcmp instead of matches bridge/br_common.h | 3 +- bridge/monitor.c | 2 +- bridge/vlan.c | 110 +++++++++++++++++++++++++++++++++++++++++++-- man/man8/bridge.8 | 21 +++++++++ 4 files changed, 130 insertions(+), 6 deletions(-) diff --git a/bridge/br_common.h b/bridge/br_common.h index b9adafd98dea..09f42c814918 100644 --- a/bridge/br_common.h +++ b/bridge/br_common.h @@ -12,7 +12,8 @@ int print_mdb_mon(struct nlmsghdr *n, void *arg); int print_fdb(struct nlmsghdr *n, void *arg); void print_stp_state(__u8 state); int parse_stp_state(const char *arg); -int print_vlan_rtm(struct nlmsghdr *n, void *arg, bool monitor); +int print_vlan_rtm(struct nlmsghdr *n, void *arg, bool monitor, + bool global_only); int do_fdb(int argc, char **argv); int do_mdb(int argc, char **argv); diff --git a/bridge/monitor.c b/bridge/monitor.c index 88f52f52f084..845e221abb49 100644 --- a/bridge/monitor.c +++ b/bridge/monitor.c @@ -71,7 +71,7 @@ static int accept_msg(struct rtnl_ctrl_data *ctrl, case RTM_DELVLAN: if (prefix_banner) fprintf(fp, "[VLAN]"); - return print_vlan_rtm(n, arg, true); + return print_vlan_rtm(n, arg, true, false); default: return 0; diff --git a/bridge/vlan.c b/bridge/vlan.c index 7e4254283373..8a2cc306cb07 100644 --- a/bridge/vlan.c +++ b/bridge/vlan.c @@ -36,7 +36,8 @@ static void usage(void) " [ self ] [ master ]\n" " bridge vlan { set } vid VLAN_ID dev DEV [ state STP_STATE ]\n" " bridge vlan { show } [ dev DEV ] [ vid VLAN_ID ]\n" - " bridge vlan { tunnelshow } [ dev DEV ] [ vid VLAN_ID ]\n"); + " bridge vlan { tunnelshow } [ dev DEV ] [ vid VLAN_ID ]\n" + " bridge vlan global { show } [ dev DEV ] [ vid VLAN_ID ]\n"); exit(-1); } @@ -621,6 +622,25 @@ static int print_vlan_stats(struct nlmsghdr *n, void *arg) return 0; } +static void print_vlan_global_opts(struct rtattr *a) +{ + struct rtattr *vtb[BRIDGE_VLANDB_GOPTS_MAX + 1]; + __u16 vid, vrange = 0; + + if ((a->rta_type & NLA_TYPE_MASK) != BRIDGE_VLANDB_GLOBAL_OPTIONS) + return; + + parse_rtattr_flags(vtb, BRIDGE_VLANDB_GOPTS_MAX, RTA_DATA(a), + RTA_PAYLOAD(a), NLA_F_NESTED); + vid = rta_getattr_u16(vtb[BRIDGE_VLANDB_GOPTS_ID]); + if (vtb[BRIDGE_VLANDB_GOPTS_RANGE]) + vrange = rta_getattr_u16(vtb[BRIDGE_VLANDB_GOPTS_RANGE]); + else + vrange = vid; + print_range("vlan", vid, vrange); + print_nl(); +} + static void print_vlan_opts(struct rtattr *a) { struct rtattr *vtb[BRIDGE_VLANDB_ENTRY_MAX + 1]; @@ -680,7 +700,7 @@ static void print_vlan_opts(struct rtattr *a) __print_one_vlan_stats(&vstats); } -int print_vlan_rtm(struct nlmsghdr *n, void *arg, bool monitor) +int print_vlan_rtm(struct nlmsghdr *n, void *arg, bool monitor, bool global_only) { struct br_vlan_msg *bvm = NLMSG_DATA(n); int len = n->nlmsg_len; @@ -722,7 +742,8 @@ int print_vlan_rtm(struct nlmsghdr *n, void *arg, bool monitor) unsigned short rta_type = a->rta_type & NLA_TYPE_MASK; /* skip unknown attributes */ - if (rta_type > BRIDGE_VLANDB_MAX) + if (rta_type > BRIDGE_VLANDB_MAX || + (global_only && rta_type != BRIDGE_VLANDB_GLOBAL_OPTIONS)) continue; if (vlan_rtm_cur_ifidx != bvm->ifindex) { @@ -737,6 +758,9 @@ int print_vlan_rtm(struct nlmsghdr *n, void *arg, bool monitor) case BRIDGE_VLANDB_ENTRY: print_vlan_opts(a); break; + case BRIDGE_VLANDB_GLOBAL_OPTIONS: + print_vlan_global_opts(a); + break; } close_json_object(); } @@ -746,7 +770,12 @@ int print_vlan_rtm(struct nlmsghdr *n, void *arg, bool monitor) static int print_vlan_rtm_filter(struct nlmsghdr *n, void *arg) { - return print_vlan_rtm(n, arg, false); + return print_vlan_rtm(n, arg, false, false); +} + +static int print_vlan_rtm_global_filter(struct nlmsghdr *n, void *arg) +{ + return print_vlan_rtm(n, arg, false, true); } static int vlan_show(int argc, char **argv, int subject) @@ -864,6 +893,61 @@ out: return 0; } +static int vlan_global_show(int argc, char **argv) +{ + __u32 dump_flags = BRIDGE_VLANDB_DUMPF_GLOBAL; + int ret = 0, subject = VLAN_SHOW_VLAN; + char *filter_dev = NULL; + + while (argc > 0) { + if (strcmp(*argv, "dev") == 0) { + NEXT_ARG(); + if (filter_dev) + duparg("dev", *argv); + filter_dev = *argv; + } else if (strcmp(*argv, "vid") == 0) { + NEXT_ARG(); + if (filter_vlan) + duparg("vid", *argv); + filter_vlan = atoi(*argv); + } + argc--; argv++; + } + + if (filter_dev) { + filter_index = ll_name_to_index(filter_dev); + if (!filter_index) + return nodev(filter_dev); + } + + new_json_obj(json); + + if (rtnl_brvlandump_req(&rth, PF_BRIDGE, dump_flags) < 0) { + perror("Cannot send dump request"); + exit(1); + } + + if (!is_json_context()) { + printf("%-" __stringify(IFNAMSIZ) "s %-" + __stringify(VLAN_ID_LEN) "s", "port", + "vlan-id"); + printf("\n"); + } + + ret = rtnl_dump_filter(&rth, print_vlan_rtm_global_filter, &subject); + if (ret < 0) { + fprintf(stderr, "Dump terminated\n"); + exit(1); + } + + if (vlan_rtm_cur_ifidx != -1) + close_vlan_port(); + + delete_json_obj(); + fflush(stdout); + return 0; +} + void print_vlan_info(struct rtattr *tb, int ifindex) { struct rtattr *i, *list = tb; @@ -908,6 +992,22 @@ void print_vlan_info(struct rtattr *tb, int ifindex) close_vlan_port(); } +static int vlan_global(int argc, char **argv) +{ + if (argc > 0) { + if (strcmp(*argv, "show") == 0 || + strcmp(*argv, "lst") == 0 || + strcmp(*argv, "list") == 0) + return vlan_global_show(argc-1, argv+1); + else + usage(); + } else { + return vlan_global_show(0, NULL); + } + + return 0; +} + int do_vlan(int argc, char **argv) { ll_init_map(&rth); @@ -926,6 +1026,8 @@ int do_vlan(int argc, char **argv) } if (matches(*argv, "set") == 0) return vlan_option_set(argc-1, argv+1); + if (strcmp(*argv, "global") == 0) + return vlan_global(argc-1, argv+1); if (matches(*argv, "help") == 0) usage(); } else { diff --git a/man/man8/bridge.8 b/man/man8/bridge.8 index eec7df4383bc..9ec4cb1dec67 100644 --- a/man/man8/bridge.8 +++ b/man/man8/bridge.8 @@ -152,6 +152,13 @@ bridge \- show / manipulate bridge addresses and devices .B dev .IR DEV " ]" +.ti -8 +.BR "bridge vlan global" " [ " show " ] [ " +.B dev +.IR DEV " ] [ " +.B vid +.IR VID " ]" + .ti -8 .BR "bridge monitor" " [ " all " | " neigh " | " link " | " mdb " | " vlan " ]" @@ -895,6 +902,20 @@ option, the command displays per-vlan traffic statistics. This command displays the current vlan tunnel info mapping. +.SS bridge vlan global show - list global vlan options. + +This command displays the global VLAN options for each VLAN entry. + +.TP +.BI dev " DEV" +the interface only whose VLAN global options should be listed. Default is to list +all bridge interfaces. + +.TP +.BI vid " VID" +the VLAN ID only whose global options should be listed. Default is to list +all vlans. + .SH bridge monitor - state monitoring The -- 2.31.1