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GET /api/1.0/patches/2218805/?format=api
{ "id": 2218805, "url": "http://patchwork.ozlabs.org/api/1.0/patches/2218805/?format=api", "project": { "id": 22, "url": "http://patchwork.ozlabs.org/api/1.0/projects/22/?format=api", "name": "HostAP Development", "link_name": "hostap", "list_id": "hostap.lists.infradead.org", "list_email": "hostap@lists.infradead.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260401220220.4418-17-andrei.otcheretianski@intel.com>", "date": "2026-04-01T22:01:25", "name": "[16/71] wpa_supplicant: Implement nan_get_chans() callback", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "dc093832c3a8c9a4d153a0a9ba99bf0c07bc881f", "submitter": { "id": 62065, "url": "http://patchwork.ozlabs.org/api/1.0/people/62065/?format=api", "name": "Andrei Otcheretianski", "email": "andrei.otcheretianski@intel.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/hostap/patch/20260401220220.4418-17-andrei.otcheretianski@intel.com/mbox/", "series": [ { "id": 498402, "url": "http://patchwork.ozlabs.org/api/1.0/series/498402/?format=api", "date": "2026-04-01T22:01:09", "name": "NAN Data Path and Bootstrapping support", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/498402/mbox/" } ], "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2218805/checks/", "tags": {}, "headers": { "Return-Path": "\n <hostap-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n secure) header.d=lists.infradead.org header.i=@lists.infradead.org\n header.a=rsa-sha256 header.s=bombadil.20210309 header.b=InXVLA8H;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256\n header.s=Intel header.b=DUl53yXf;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=none (no SPF record) smtp.mailfrom=lists.infradead.org\n (client-ip=2607:7c80:54:3::133; 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a=\"75851591\"", "E=Sophos;i=\"6.23,153,1770624000\";\n d=\"scan'208\";a=\"75851591\"" ], "X-ExtLoop1": "1", "From": "Andrei Otcheretianski <andrei.otcheretianski@intel.com>", "To": "hostap@lists.infradead.org", "Subject": "[PATCH 16/71] wpa_supplicant: Implement nan_get_chans() callback", "Date": "Thu, 2 Apr 2026 01:01:25 +0300", "Message-ID": "<20260401220220.4418-17-andrei.otcheretianski@intel.com>", "X-Mailer": "git-send-email 2.53.0", "In-Reply-To": "<20260401220220.4418-1-andrei.otcheretianski@intel.com>", "References": "<20260401220220.4418-1-andrei.otcheretianski@intel.com>", "MIME-Version": "1.0", "X-CRM114-Version": "20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 ", "X-CRM114-CacheID": "sfid-20260401_150533_046758_40CEEAD7 ", "X-CRM114-Status": "GOOD ( 17.45 )", "X-Spam-Score": "-1.9 (-)", "X-Spam-Report": "Spam detection software,\n running on the system \"bombadil.infradead.org\",\n has NOT identified this incoming email as spam. The original\n message has been attached to this so you can view it or label\n similar future email. If you have any questions, see\n the administrator of that system for details.\n Content preview: This callback is used to report own potential availability\n to NAN module. Iterate over all the operating classes and report all the\n channels that are supported for NAN operation. Increase preference f [...] \n Content analysis details: (-1.9 points, 5.0 required)\n pts rule name description\n ---- ----------------------\n --------------------------------------------------\n -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/,\n medium trust\n [198.175.65.20 listed in list.dnswl.org]\n 1.0 RCVD_IN_VALIDITY_RPBL_BLOCKED RBL: ADMINISTRATOR NOTICE: The query to\n Validity was blocked. See\n https://knowledge.validity.com/hc/en-us/articles/20961730681243\n for more information.\n [198.175.65.20 listed in\n bl.score.senderscore.com]\n 1.0 RCVD_IN_VALIDITY_CERTIFIED_BLOCKED RBL: ADMINISTRATOR NOTICE: The\n query to Validity was blocked. See\n https://knowledge.validity.com/hc/en-us/articles/20961730681243\n for more information.\n [198.175.65.20 listed in\n sa-trusted.bondedsender.org]\n 1.0 RCVD_IN_VALIDITY_SAFE_BLOCKED RBL: ADMINISTRATOR NOTICE: The query to\n Validity was blocked. See\n https://knowledge.validity.com/hc/en-us/articles/20961730681243\n for more information.\n [198.175.65.20 listed in sa-accredit.habeas.com]\n 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record\n -0.0 SPF_PASS SPF: sender matches SPF record\n 0.1 DKIM_SIGNED Message has a DKIM or DK signature,\n not necessarily valid\n -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from\n envelope-from domain\n -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from\n author's\n domain\n -0.1 DKIM_VALID Message has at least one valid DKIM or DK\n signature\n -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1%\n [score: 0.0000]\n -0.5 DKIMWL_WL_HIGH DKIMwl.org - High trust sender", "X-BeenThere": "hostap@lists.infradead.org", "X-Mailman-Version": "2.1.34", "Precedence": "list", "List-Id": "<hostap.lists.infradead.org>", "List-Unsubscribe": "<http://lists.infradead.org/mailman/options/hostap>,\n <mailto:hostap-request@lists.infradead.org?subject=unsubscribe>", "List-Archive": "<http://lists.infradead.org/pipermail/hostap/>", "List-Post": "<mailto:hostap@lists.infradead.org>", "List-Help": "<mailto:hostap-request@lists.infradead.org?subject=help>", "List-Subscribe": "<http://lists.infradead.org/mailman/listinfo/hostap>,\n <mailto:hostap-request@lists.infradead.org?subject=subscribe>", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Sender": "\"Hostap\" <hostap-bounces@lists.infradead.org>", "Errors-To": "hostap-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org" }, "content": "This callback is used to report own potential availability to NAN\nmodule.\nIterate over all the operating classes and report all the channels that\nare supported for NAN operation.\nIncrease preference for shared radio frequencies.\nDon't report support for 40 MHz channels on 2.4GHz band and for\noperating classes > 129 (i.e. 80+80, 6Ghz etc.).\n\nSigned-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>\n---\n wpa_supplicant/nan_supplicant.c | 120 +++++++++++++++++++++++++++++++-\n 1 file changed, 117 insertions(+), 3 deletions(-)", "diff": "diff --git a/wpa_supplicant/nan_supplicant.c b/wpa_supplicant/nan_supplicant.c\nindex c8c4c439ad..8432f22087 100644\n--- a/wpa_supplicant/nan_supplicant.c\n+++ b/wpa_supplicant/nan_supplicant.c\n@@ -221,14 +221,128 @@ static int wpas_nan_send_naf_cb(void *ctx, const u8 *dst, const u8 *src,\n }\n \n \n-static int wpas_nan_get_chans_cb(void *ctx, u8 map_id, struct nan_channels *chans)\n+static int nan_chan_info_cmp(const void *a, const void *b)\n {\n+\tconst struct nan_channel_info *chan_a = a;\n+\tconst struct nan_channel_info *chan_b = b;\n+\n+\treturn chan_b->pref - chan_a->pref;\n+}\n+\n+\n+static int wpas_nan_get_chans_cb(void *ctx, u8 map_id,\n+\t\t\t\t struct nan_channels *chans)\n+{\n+\tstruct wpa_supplicant *wpa_s = ctx;\n+\tint *shared_freqs = NULL;\n+\tstruct nan_channel_info *chan_list = NULL;\n+\tsize_t chan_count = 0;\n+\tsize_t chan_capacity = 0;\n+\tint op;\n+\n \twpa_printf(MSG_DEBUG, \"NAN: Get channels - map_id=%u\", map_id);\n \n-\t/* TODO: Implement actual channel selection */\n+\t/* Allocate one extra element so it will be 0 terminated int_array */\n+\tshared_freqs = os_calloc(wpa_s->num_multichan_concurrent + 1,\n+\t\t\t\t sizeof(int));\n+\tif (!shared_freqs) {\n+\t\twpa_printf(MSG_DEBUG,\n+\t\t\t \"NAN: Failed to allocate memory for shared freqs\");\n+\t\tgoto fail;\n+\t}\n+\n+\tif (get_shared_radio_freqs(wpa_s, shared_freqs,\n+\t\t\t\t wpa_s->num_multichan_concurrent,\n+\t\t\t\t false) < 0) {\n+\t\twpa_printf(MSG_DEBUG, \"NAN: Failed to get shared radio freqs\");\n+\t\tgoto fail;\n+\t}\n+\n+\t/* Iterate through global operating classes */\n+\tfor (op = 0; global_op_class[op].op_class; op++) {\n+\t\tconst struct oper_class_map *o = &global_op_class[op];\n+\t\tint c;\n+\n+\t\t /* Don't support 80+, 6ghz etc yet */\n+\t\tif (o->op_class > 129)\n+\t\t\tcontinue;\n+\n+\t\t/* Iterate through channels in this operating class */\n+\t\tfor (c = o->min_chan; c <= o->max_chan; c += o->inc) {\n+\t\t\tint freq;\n+\t\t\tu8 center;\n+\t\t\tu8 pref;\n+\n+\t\t\t/* Don't support 40 MHz channels on 2.4 GHz band */\n+\t\t\tif (o->mode == HOSTAPD_MODE_IEEE80211G &&\n+\t\t\t o->bw != BW20)\n+\t\t\t\tcontinue;\n+\n+\t\t\tif (!wpas_nan_valid_chan(wpa_s, o->mode, c, o->bw,\n+\t\t\t\t\t\t o->op_class, ¢er))\n+\t\t\t\tcontinue;\n+\n+\t\t\tfreq = ieee80211_chan_to_freq(NULL, o->op_class, c);\n+\t\t\tif (freq < 0)\n+\t\t\t\tcontinue;\n+\n+\t\t\t/* Determine preference based on shared frequencies */\n+\t\t\tif (int_array_includes(shared_freqs, freq)) {\n+\t\t\t\tpref = 3;\n+\t\t\t} else {\n+\t\t\t\tpref = 1;\n+\t\t\t}\n+\n+\t\t\t/* Expand channel list if needed */\n+\t\t\tif (chan_count >= chan_capacity) {\n+\t\t\t\tsize_t new_capacity = chan_capacity ?\n+\t\t\t\t\tchan_capacity * 2 : 16;\n+\t\t\t\tstruct nan_channel_info *new_list;\n+\n+\t\t\t\tnew_list = os_realloc_array(\n+\t\t\t\t\tchan_list, new_capacity,\n+\t\t\t\t\tsizeof(struct nan_channel_info));\n+\t\t\t\tif (!new_list) {\n+\t\t\t\t\twpa_printf(MSG_DEBUG,\n+\t\t\t\t\t\t \"NAN: Failed to expand channel list\");\n+\t\t\t\t\tgoto fail;\n+\t\t\t\t}\n+\t\t\t\tchan_list = new_list;\n+\t\t\t\tchan_capacity = new_capacity;\n+\t\t\t}\n+\n+\t\t\t/* Add channel to list */\n+\t\t\tchan_list[chan_count].op_class = o->op_class;\n+\t\t\tchan_list[chan_count].channel = o->bw == BW80 ||\n+\t\t\t\t\t\t\to->bw == BW160 ?\n+\t\t\t\t\t\t\tcenter : c;\n+\t\t\tchan_list[chan_count].pref = pref;\n+\t\t\tchan_count++;\n+\t\t}\n+\t}\n+\n+\t/* Sort channels by preference (higher preference first) */\n+\tif (chan_count > 1) {\n+\t\tqsort(chan_list, chan_count, sizeof(struct nan_channel_info),\n+\t\t nan_chan_info_cmp);\n+\t}\n+\n+\tchans->n_chans = chan_count;\n+\tchans->chans = chan_list;\n+\n+\tos_free(shared_freqs);\n+\n+\twpa_printf(MSG_DEBUG,\n+\t\t \"NAN: Get channels completed - found %zu channels\",\n+\t\t chan_count);\n+\treturn 0;\n+\n+fail:\n+\tos_free(shared_freqs);\n+\tos_free(chan_list);\n \tchans->n_chans = 0;\n \tchans->chans = NULL;\n-\treturn 0;\n+\treturn -1;\n }\n \n \n", "prefixes": [ "16/71" ] }