From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A89E7C19F28 for ; Wed, 3 Aug 2022 09:10:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235999AbiHCJKu (ORCPT ); Wed, 3 Aug 2022 05:10:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60700 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235921AbiHCJKs (ORCPT ); Wed, 3 Aug 2022 05:10:48 -0400 Received: from mail-pf1-x429.google.com (mail-pf1-x429.google.com [IPv6:2607:f8b0:4864:20::429]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B92ABBE34 for ; Wed, 3 Aug 2022 02:10:46 -0700 (PDT) Received: by mail-pf1-x429.google.com with SMTP id q19so6558179pfg.8 for ; Wed, 03 Aug 2022 02:10:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=references:in-reply-to:message-id:date:subject:cc:to:from:from:to :cc; bh=bbgQFLJQPnXxQ7RAdflLJQs/BMZ+JI2wyH0NrUtT+Ok=; b=MuC5buCOejQhy9atTFvss3imAYwkrXDjDJbasDOrO/L9RLWdBzE/S8q2auwLasGIGc G78qScAvqoHZMM/jM03k++OeucinAg2JZVXqfifRqgUEgbIdMjc0c1lk12TcoYIkzOEx I5RC1iOVAvmv6qUsbsIOJBRroqAT+OK/X2JGA= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=references:in-reply-to:message-id:date:subject:cc:to:from :x-gm-message-state:from:to:cc; bh=bbgQFLJQPnXxQ7RAdflLJQs/BMZ+JI2wyH0NrUtT+Ok=; b=Q6DdeaYL+T+IDQObgswsVDAeekMNQNcRi4R9WX8ah2Z9LKJoHcmkmfjHqZnfjexXIF vwsBMyKohYdRjvywAm6AUN6C1DBDh2NtZ37+gifB+uz+nuhxytvZa3EPN+bAJxabisHG 6NPQH62X4FGyd5GBl4DCTtiIBZOlXQ28Ug5tN2qr8anobTzUsUyiRp6bceZsEu3scgyE La17OoJNOAcPOFrlSV7sCA5UNGwHL7EeWrA12VsrCxqcpyPHJlhSDeKiNl2WqZEsG+Nb Jnr/ILLCn1k77ZEdRQE4ZCdSA6E6K/jKQ5o3I74ca4q7/UShwHS6ofP/S6jHysALmjmP eRJQ== X-Gm-Message-State: ACgBeo1WqGjt7R2F5pzIzWhGK+SvyoGG/FVL5McOzveYx3tsSbeOOy6e SD90hca8drnWZ1WasBYqWvCl0w== X-Google-Smtp-Source: AA6agR7srMHdvMACHxFYLPajSRroGZ46vrn6sOKpzBFPRaKO4C3JRVPBp9v2k5gu3ZBSdRKghCHGwQ== X-Received: by 2002:a63:1a49:0:b0:41b:c0b2:c94d with SMTP id a9-20020a631a49000000b0041bc0b2c94dmr15459310pgm.524.1659517846012; Wed, 03 Aug 2022 02:10:46 -0700 (PDT) Received: from rahul_yocto_ubuntu18.ibn.broadcom.net ([192.19.234.250]) by smtp.gmail.com with ESMTPSA id ik25-20020a170902ab1900b0016d6963cb12sm1315960plb.304.2022.08.03.02.10.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 Aug 2022 02:10:44 -0700 (PDT) From: Vikas Gupta To: jiri@nvidia.com, dsahern@kernel.org, stephen@networkplumber.org Cc: kuba@kernel.org, netdev@vger.kernel.org, edumazet@google.com, michael.chan@broadcom.com, andrew.gospodarek@broadcom.com, Vikas Gupta Subject: [PATCH iproute2-next v5 2/2] devlink: add support for running selftests Date: Wed, 3 Aug 2022 14:40:25 +0530 Message-Id: <20220803091025.30800-3-vikas.gupta@broadcom.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220803091025.30800-1-vikas.gupta@broadcom.com> References: <20220803091025.30800-1-vikas.gupta@broadcom.com> Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="000000000000bd56a105e5529bc9" Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org --000000000000bd56a105e5529bc9 Add commands and helper APIs to run selftests. Include a selftest id for a non volatile memory i.e. flash. Also, update the man page and bash-completion for selftests commands. Examples: $ devlink dev selftests run pci/0000:03:00.0 id flash pci/0000:03:00.0: flash: status passed $ devlink dev selftests show pci/0000:03:00.0 pci/0000:03:00.0 flash $ devlink dev selftests show pci/0000:03:00.0 -j {"selftests":{"pci/0000:03:00.0":["flash"]}} $ devlink dev selftests run pci/0000:03:00.0 id flash -j {"selftests":{"pci/0000:03:00.0":{"flash":{"status":"passed"}}}} Signed-off-by: Vikas Gupta --- bash-completion/devlink | 30 +++- devlink/devlink.c | 328 ++++++++++++++++++++++++++++++++++++++++ man/man8/devlink-dev.8 | 46 ++++++ 3 files changed, 403 insertions(+), 1 deletion(-) diff --git a/bash-completion/devlink b/bash-completion/devlink index 361be9fe..0117b278 100644 --- a/bash-completion/devlink +++ b/bash-completion/devlink @@ -33,6 +33,11 @@ _devlink_direct_complete() dev) value=$(devlink dev show 2>/dev/null) ;; + selftests_id) + dev=${words[4]} + value=$(devlink -j dev selftests show 2>/dev/null \ + | jq ".selftests[\"$dev\"][]") + ;; param_name) dev=${words[4]} value=$(devlink -j dev param show 2>/dev/null \ @@ -262,6 +267,29 @@ _devlink_dev_flash() esac } +# Completion for devlink dev selftests +_devlink_dev_selftests() +{ + if [[ $cword -gt 5 ]]; then + _devlink_direct_complete "selftests_id" + return + fi + case "$cword" in + 3) + COMPREPLY=( $( compgen -W "show run" -- "$cur" ) ) + return + ;; + 4) + _devlink_direct_complete "dev" + return + ;; + 5) + COMPREPLY=( $( compgen -W "id" -- "$cur" ) ) + return + ;; + esac +} + # Completion for devlink dev _devlink_dev() { @@ -274,7 +302,7 @@ _devlink_dev() fi return ;; - eswitch|param) + eswitch|param|selftests) _devlink_dev_$command return ;; diff --git a/devlink/devlink.c b/devlink/devlink.c index ddf430bb..822e9f60 100644 --- a/devlink/devlink.c +++ b/devlink/devlink.c @@ -294,6 +294,7 @@ static void ifname_map_free(struct ifname_map *ifname_map) #define DL_OPT_PORT_FN_RATE_TX_MAX BIT(49) #define DL_OPT_PORT_FN_RATE_NODE_NAME BIT(50) #define DL_OPT_PORT_FN_RATE_PARENT BIT(51) +#define DL_OPT_SELFTESTS BIT(52) struct dl_opts { uint64_t present; /* flags of present items */ @@ -354,6 +355,7 @@ struct dl_opts { uint64_t rate_tx_max; char *rate_node_name; const char *rate_parent_node; + bool selftests_opt[DEVLINK_ATTR_SELFTEST_ID_MAX + 1]; }; struct dl { @@ -693,6 +695,7 @@ static const enum mnl_attr_data_type devlink_policy[DEVLINK_ATTR_MAX + 1] = { [DEVLINK_ATTR_TRAP_POLICER_ID] = MNL_TYPE_U32, [DEVLINK_ATTR_TRAP_POLICER_RATE] = MNL_TYPE_U64, [DEVLINK_ATTR_TRAP_POLICER_BURST] = MNL_TYPE_U64, + [DEVLINK_ATTR_SELFTESTS] = MNL_TYPE_NESTED, }; static const enum mnl_attr_data_type @@ -1401,6 +1404,17 @@ static struct str_num_map port_fn_opstate_map[] = { { .str = NULL, } }; +static int selftests_get(const char *selftest_name, bool *selftests_opt) +{ + if (strcmp(selftest_name, "flash") == 0) { + selftests_opt[0] = true; + } else { + pr_err("Unknown selftest \"%s\"\n", selftest_name); + return -EINVAL; + } + return 0; +} + static int port_flavour_parse(const char *flavour, uint16_t *value) { int num; @@ -1490,6 +1504,7 @@ static const struct dl_args_metadata dl_args_required[] = { {DL_OPT_PORT_FUNCTION_HW_ADDR, "Port function's hardware address is expected."}, {DL_OPT_PORT_FLAVOUR, "Port flavour is expected."}, {DL_OPT_PORT_PFNUMBER, "Port PCI PF number is expected."}, + {DL_OPT_SELFTESTS, "Test name is expected"}, }; static int dl_args_finding_required_validate(uint64_t o_required, @@ -1793,6 +1808,21 @@ static int dl_argv_parse(struct dl *dl, uint64_t o_required, return err; o_found |= DL_OPT_FLASH_OVERWRITE; + } else if (dl_argv_match(dl, "id") && + (o_all & DL_OPT_SELFTESTS)) { + dl_arg_inc(dl); + while (dl_argc(dl)) { + const char *selftest_name; + err = dl_argv_str(dl, &selftest_name); + if (err) + return err; + err = selftests_get(selftest_name, + opts->selftests_opt); + if (err) + return err; + } + o_found |= DL_OPT_SELFTESTS; + } else if (dl_argv_match(dl, "reporter") && (o_all & DL_OPT_HEALTH_REPORTER_NAME)) { dl_arg_inc(dl); @@ -2063,6 +2093,34 @@ dl_reload_limits_put(struct nlmsghdr *nlh, const struct dl_opts *opts) mnl_attr_put(nlh, DEVLINK_ATTR_RELOAD_LIMITS, sizeof(limits), &limits); } +static void +dl_selftests_put(struct nlmsghdr *nlh, const struct dl_opts *opts) +{ + bool test_sel = false; + struct nlattr *nest; + int id; + + nest = mnl_attr_nest_start(nlh, DEVLINK_ATTR_SELFTESTS); + + for (id = DEVLINK_ATTR_SELFTEST_ID_UNSPEC + 1; + id <= DEVLINK_ATTR_SELFTEST_ID_MAX && + opts->selftests_opt[id]; id++) { + if (opts->selftests_opt[id]) { + test_sel = true; + mnl_attr_put(nlh, id, 0, NULL); + } + } + + /* No test selected from user, select all */ + if (!test_sel) { + for (id = DEVLINK_ATTR_SELFTEST_ID_UNSPEC + 1; + id <= DEVLINK_ATTR_SELFTEST_ID_MAX; id++) + mnl_attr_put(nlh, id, 0, NULL); + } + + mnl_attr_nest_end(nlh, nest); +} + static void dl_opts_put(struct nlmsghdr *nlh, struct dl *dl) { struct dl_opts *opts = &dl->opts; @@ -2157,6 +2215,8 @@ static void dl_opts_put(struct nlmsghdr *nlh, struct dl *dl) opts->flash_component); if (opts->present & DL_OPT_FLASH_OVERWRITE) dl_flash_update_overwrite_put(nlh, opts); + if (opts->present & DL_OPT_SELFTESTS) + dl_selftests_put(nlh, opts); if (opts->present & DL_OPT_HEALTH_REPORTER_NAME) mnl_attr_put_strz(nlh, DEVLINK_ATTR_HEALTH_REPORTER_NAME, opts->reporter_name); @@ -2285,6 +2345,8 @@ static void cmd_dev_help(void) pr_err(" [ action { driver_reinit | fw_activate } ] [ limit no_reset ]\n"); pr_err(" devlink dev info [ DEV ]\n"); pr_err(" devlink dev flash DEV file PATH [ component NAME ] [ overwrite SECTION ]\n"); + pr_err(" devlink dev selftests show [DEV]\n"); + pr_err(" devlink dev selftests run DEV [id TESTNAME ]\n"); } static bool cmp_arr_last_handle(struct dl *dl, const char *bus_name, @@ -2379,6 +2441,41 @@ static void pr_out_handle(struct dl *dl, struct nlattr **tb) pr_out_handle_end(dl); } +static void pr_out_selftests_handle_start(struct dl *dl, struct nlattr **tb) +{ + const char *bus_name = mnl_attr_get_str(tb[DEVLINK_ATTR_BUS_NAME]); + const char *dev_name = mnl_attr_get_str(tb[DEVLINK_ATTR_DEV_NAME]); + char buf[64]; + + sprintf(buf, "%s/%s", bus_name, dev_name); + + if (dl->json_output) { + if (should_arr_last_handle_end(dl, bus_name, dev_name)) + close_json_array(PRINT_JSON, NULL); + if (should_arr_last_handle_start(dl, bus_name, + dev_name)) { + open_json_array(PRINT_JSON, buf); + arr_last_handle_set(dl, bus_name, dev_name); + } + } else { + if (should_arr_last_handle_end(dl, bus_name, dev_name)) + __pr_out_indent_dec(); + if (should_arr_last_handle_start(dl, bus_name, + dev_name)) { + pr_out("%s%s", buf, ":"); + __pr_out_newline(); + __pr_out_indent_inc(); + arr_last_handle_set(dl, bus_name, dev_name); + } + } +} + +static void pr_out_selftests_handle_end(struct dl *dl) +{ + if (!dl->json_output) + __pr_out_newline(); +} + static bool cmp_arr_last_port_handle(struct dl *dl, const char *bus_name, const char *dev_name, uint32_t port_index) { @@ -3904,6 +4001,234 @@ err_socket: return err; } +static const char *devlink_get_selftest_name(int id) +{ + switch (id) { + case DEVLINK_ATTR_SELFTEST_ID_FLASH: + return "flash"; + default: + return "unknown"; + } +} + +static const enum mnl_attr_data_type +devlink_selftest_id_policy[DEVLINK_ATTR_SELFTEST_ID_MAX + 1] = { + [DEVLINK_ATTR_SELFTEST_ID_FLASH] = MNL_TYPE_FLAG, +}; + +static int selftests_attr_cb(const struct nlattr *attr, void *data) +{ + const struct nlattr **tb = data; + int type; + + if (mnl_attr_type_valid(attr, DEVLINK_ATTR_SELFTEST_ID_MAX) < 0) + return MNL_CB_OK; + + type = mnl_attr_get_type(attr); + if (mnl_attr_validate(attr, devlink_selftest_id_policy[type]) < 0) + return MNL_CB_ERROR; + + tb[type] = attr; + return MNL_CB_OK; +} + +static int cmd_dev_selftests_show_cb(const struct nlmsghdr *nlh, void *data) +{ + struct nlattr *selftests[DEVLINK_ATTR_SELFTEST_ID_MAX + 1] = {}; + struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh); + struct nlattr *tb[DEVLINK_ATTR_MAX + 1] = {}; + struct dl *dl = data; + int avail = 0; + int err; + int i; + + mnl_attr_parse(nlh, sizeof(*genl), attr_cb, tb); + + if (!tb[DEVLINK_ATTR_BUS_NAME] || !tb[DEVLINK_ATTR_DEV_NAME] || + !tb[DEVLINK_ATTR_SELFTESTS]) + return MNL_CB_ERROR; + + err = mnl_attr_parse_nested(tb[DEVLINK_ATTR_SELFTESTS], + selftests_attr_cb, selftests); + if (err != MNL_CB_OK) + return MNL_CB_ERROR; + + for (i = DEVLINK_ATTR_SELFTEST_ID_UNSPEC + 1; + i <= DEVLINK_ATTR_SELFTEST_ID_MAX; i++) { + if (!(selftests[i])) + continue; + + if (!avail) { + pr_out_selftests_handle_start(dl, tb); + avail = 1; + } + + check_indent_newline(dl); + print_string(PRINT_ANY, NULL, "%s", devlink_get_selftest_name(i)); + } + + if (avail) { + pr_out_selftests_handle_end(dl); + } + + return MNL_CB_OK; +} + +static const char *devlink_selftest_status_to_str(uint8_t status) +{ + switch (status) { + case DEVLINK_SELFTEST_STATUS_SKIP: + return "skipped"; + case DEVLINK_SELFTEST_STATUS_PASS: + return "passed"; + case DEVLINK_SELFTEST_STATUS_FAIL: + return "failed"; + default: + return "unknown"; + } +} + +static const enum mnl_attr_data_type +devlink_selftests_result_policy[DEVLINK_ATTR_SELFTEST_RESULT_MAX + 1] = { + [DEVLINK_ATTR_SELFTEST_RESULT] = MNL_TYPE_NESTED, + [DEVLINK_ATTR_SELFTEST_RESULT_ID] = MNL_TYPE_U32, + [DEVLINK_ATTR_SELFTEST_RESULT_STATUS] = MNL_TYPE_U8, +}; + +static int selftests_result_attr_cb(const struct nlattr *attr, void *data) +{ + const struct nlattr **tb = data; + int type; + + if (mnl_attr_type_valid(attr, DEVLINK_ATTR_SELFTEST_RESULT_MAX) < 0) + return MNL_CB_OK; + + type = mnl_attr_get_type(attr); + if (mnl_attr_validate(attr, devlink_selftests_result_policy[type]) < 0) + return MNL_CB_ERROR; + + tb[type] = attr; + return MNL_CB_OK; +} + +static int cmd_dev_selftests_run_cb(const struct nlmsghdr *nlh, void *data) +{ + struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh); + struct nlattr *tb[DEVLINK_ATTR_MAX + 1] = {}; + struct nlattr *selftest; + struct dl *dl = data; + int avail = 0; + + mnl_attr_parse(nlh, sizeof(*genl), attr_cb, tb); + + if (!tb[DEVLINK_ATTR_BUS_NAME] || !tb[DEVLINK_ATTR_DEV_NAME] || + !tb[DEVLINK_ATTR_SELFTESTS]) + return MNL_CB_ERROR; + + mnl_attr_for_each_nested(selftest, tb[DEVLINK_ATTR_SELFTESTS]) { + struct nlattr *result[DEVLINK_ATTR_SELFTEST_RESULT_MAX + 1] = {}; + uint8_t status; + int err; + int id; + + err = mnl_attr_parse_nested(selftest, + selftests_result_attr_cb, result); + if (err != MNL_CB_OK) + return MNL_CB_ERROR; + + if (!result[DEVLINK_ATTR_SELFTEST_RESULT_ID] || + !result[DEVLINK_ATTR_SELFTEST_RESULT_STATUS]) + return MNL_CB_ERROR; + + if (!avail) { + pr_out_section_start(dl, "selftests"); + __pr_out_handle_start(dl, tb, true, false); + __pr_out_indent_inc(); + avail = 1; + if (!dl->json_output) + __pr_out_newline(); + } + + id = mnl_attr_get_u32(result[DEVLINK_ATTR_SELFTEST_RESULT_ID]); + status = mnl_attr_get_u8(result[DEVLINK_ATTR_SELFTEST_RESULT_STATUS]); + + pr_out_object_start(dl, devlink_get_selftest_name(id)); + check_indent_newline(dl); + print_string_name_value("status", + devlink_selftest_status_to_str(status)); + pr_out_object_end(dl); + if (!dl->json_output) + __pr_out_newline(); + } + + if (avail) { + __pr_out_indent_dec(); + pr_out_handle_end(dl); + pr_out_section_end(dl); + } + + return MNL_CB_OK; +} + +static int cmd_dev_selftests_run(struct dl *dl) +{ + struct nlmsghdr *nlh; + uint16_t flags = NLM_F_REQUEST | NLM_F_ACK; + int err; + + nlh = mnlu_gen_socket_cmd_prepare(&dl->nlg, DEVLINK_CMD_SELFTESTS_RUN, flags); + + err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLE, DL_OPT_SELFTESTS); + if (err) + return err; + + if (!(dl->opts.present & DL_OPT_SELFTESTS)) + dl_selftests_put(nlh, &dl->opts); + + err = mnlu_gen_socket_sndrcv(&dl->nlg, nlh, cmd_dev_selftests_run_cb, dl); + return err; +} + +static int cmd_dev_selftests_show(struct dl *dl) +{ + uint16_t flags = NLM_F_REQUEST | NLM_F_ACK; + struct nlmsghdr *nlh; + int err; + + if (dl_argc(dl) == 0) + flags |= NLM_F_DUMP; + + nlh = mnlu_gen_socket_cmd_prepare(&dl->nlg, DEVLINK_CMD_SELFTESTS_GET, flags); + + if (dl_argc(dl) > 0) { + err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLE, 0); + if (err) + return err; + } + + pr_out_section_start(dl, "selftests"); + err = mnlu_gen_socket_sndrcv(&dl->nlg, nlh, cmd_dev_selftests_show_cb, dl); + pr_out_section_end(dl); + return err; +} + +static int cmd_dev_selftests(struct dl *dl) +{ + if (dl_argv_match(dl, "help")) { + cmd_dev_help(); + return 0; + } else if (dl_argv_match(dl, "show") || + dl_argv_match(dl, "list") || dl_no_arg(dl)) { + dl_arg_inc(dl); + return cmd_dev_selftests_show(dl); + } else if (dl_argv_match(dl, "run")) { + dl_arg_inc(dl); + return cmd_dev_selftests_run(dl); + } + pr_err("Command \"%s\" not found\n", dl_argv(dl)); + return -ENOENT; +} + static int cmd_dev(struct dl *dl) { if (dl_argv_match(dl, "help")) { @@ -3928,6 +4253,9 @@ static int cmd_dev(struct dl *dl) } else if (dl_argv_match(dl, "flash")) { dl_arg_inc(dl); return cmd_dev_flash(dl); + } else if (dl_argv_match(dl, "selftests")) { + dl_arg_inc(dl); + return cmd_dev_selftests(dl); } pr_err("Command \"%s\" not found\n", dl_argv(dl)); return -ENOENT; diff --git a/man/man8/devlink-dev.8 b/man/man8/devlink-dev.8 index 6906e509..2a776416 100644 --- a/man/man8/devlink-dev.8 +++ b/man/man8/devlink-dev.8 @@ -85,6 +85,20 @@ devlink-dev \- devlink device configuration .I ID ] +.ti -8 +.B devlink dev selftests show +[ +.I DEV +] + +.ti -8 +.B devlink dev selftests run +.I DEV +[ +.B id +.I ID... +] + .SH "DESCRIPTION" .SS devlink dev show - display devlink device attributes @@ -249,6 +263,28 @@ should match the component names from .B "devlink dev info" and may be driver-dependent. +.SS devlink dev selftests show - shows supported selftests on devlink device. + +.PP +.I "DEV" +- specifies the devlink device. +If this argument is omitted all selftests for devlink devices are listed. + +.SS devlink dev selftests run - runs selftests on devlink device. + +.PP +.I "DEV" +- specifies the devlink device to execute selftests. + +.B id +.I ID... +- The value of +.I ID(s) +should match the selftests shown in +.B "devlink dev selftests show" +to execute selftests on the devlink device. +If this argument is omitted all selftests supported by devlink devices are executed. + .SH "EXAMPLES" .PP devlink dev show @@ -296,6 +332,16 @@ Flashing 100% .br Flashing done .RE +.PP +devlink dev selftests show pci/0000:01:00.0 +.RS 4 +Shows the supported selftests by the devlink device. +.RE +.PP +devlink dev selftests run pci/0000:01:00.0 id flash +.RS 4 +Perform a flash test on the devlink device. +.RE .SH SEE ALSO .BR devlink (8), -- 2.31.1 --000000000000bd56a105e5529bc9 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIIQagYJKoZIhvcNAQcCoIIQWzCCEFcCAQExDzANBglghkgBZQMEAgEFADALBgkqhkiG9w0BBwGg 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