From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 807357DA9C for ; Wed, 9 Apr 2025 00:04:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744157072; cv=none; b=YoHyKAU6JjLp91yHpQ+pyDtpKmyqteSod5u+LCwRYfEhQ7/BGsLV54h0bep3YG8Ylgh6AdHPq5zqQWmhggEK6DRD4i4cGEWTTiUI2A/cqriqlSaAAxh2rRrgrJIBTjXrFkUefTUm+YDij/rea3XYuj80bgqLuobV1M5jpCIrOck= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744157072; c=relaxed/simple; bh=gz9XjmE7oCz0sdEkzWrtp96K3Ioe3p5qbRM3oRezMwc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=KVgj5xzj1v/dB7A7/8VdEU1mK+3C8JUKIvB9pjjzbevOaTtrHDye/jyOva19mkX6+AJFY1apbYm8ALX9wMPrIN9FjiInr0CxQBfoU4yFeYT9ZaKWZBLVrYWeTaRnxUR6bhyKP6ONeArKyAoKLXZSZAiOI2tVewcJ1r5QeORt978= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=CtijSyT8; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="CtijSyT8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7F12AC4CEE5; Wed, 9 Apr 2025 00:04:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1744157071; bh=gz9XjmE7oCz0sdEkzWrtp96K3Ioe3p5qbRM3oRezMwc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CtijSyT8l2g6pQuwSpYe+HWdtCVJS09aWCE5t5UXinvkueATaY0SdDi2gpOOkDr6G F9cnmr21uZ7uudf2dTQ/M6j5cCyPWgDI7+RM9JOCyTnQ3AgSUCLLnvwvS7Toppq1Ui w/PPaYv7H5ekboSYekqU9wx9r9AwOuIlGDBl+M66/trZQ9PO7L77ZRi849VYhTMqJh IXLnwJCSgVBpp6hchbXnIrsf8130XLN6IcoqMhyyPspT20I2Fkr8+n/VbIs5bEQ2Ey /qWP1/ShpXyCZ5Idt7Gex4pTTBBTHH0l0l/Q8Vxnjbegc48oei6gNZHinIEXYXIiV5 cHAvwmNqYMc7Q== From: Jakub Kicinski To: davem@davemloft.net Cc: netdev@vger.kernel.org, edumazet@google.com, pabeni@redhat.com, andrew+netdev@lunn.ch, horms@kernel.org, donald.hunter@gmail.com, jacob.e.keller@intel.com, yuyanghuang@google.com, sdf@fomichev.me, gnault@redhat.com, nicolas.dichtel@6wind.com, petrm@nvidia.com, Jakub Kicinski Subject: [PATCH net-next 12/13] tools: ynl: generate code for rt-addr and add a sample Date: Tue, 8 Apr 2025 17:03:59 -0700 Message-ID: <20250409000400.492371-13-kuba@kernel.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250409000400.492371-1-kuba@kernel.org> References: <20250409000400.492371-1-kuba@kernel.org> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit YNL C can now generate code for simple classic netlink families. Include rt-addr in the Makefile for generation and add a sample. $ ./tools/net/ynl/samples/rt-addr lo: 127.0.0.1 wlp0s20f3: 192.168.1.101 lo: :: wlp0s20f3: fe80::6385:be6:746e:8116 vpn0: fe80::3597:d353:b5a7:66dd Signed-off-by: Jakub Kicinski --- tools/net/ynl/Makefile.deps | 1 + tools/net/ynl/generated/Makefile | 2 +- tools/net/ynl/samples/rt-addr.c | 80 ++++++++++++++++++++++++++++++++ tools/net/ynl/samples/.gitignore | 3 +- 4 files changed, 84 insertions(+), 2 deletions(-) create mode 100644 tools/net/ynl/samples/rt-addr.c diff --git a/tools/net/ynl/Makefile.deps b/tools/net/ynl/Makefile.deps index f3269ce39e5b..e55d94211df6 100644 --- a/tools/net/ynl/Makefile.deps +++ b/tools/net/ynl/Makefile.deps @@ -29,4 +29,5 @@ CFLAGS_nfsd:=$(call get_hdr_inc,_LINUX_NFSD_NETLINK_H,nfsd_netlink.h) CFLAGS_ovs_datapath:=$(call get_hdr_inc,__LINUX_OPENVSWITCH_H,openvswitch.h) CFLAGS_ovs_flow:=$(call get_hdr_inc,__LINUX_OPENVSWITCH_H,openvswitch.h) CFLAGS_ovs_vport:=$(call get_hdr_inc,__LINUX_OPENVSWITCH_H,openvswitch.h) +CFLAGS_rt-addr:=$(call get_hdr_inc,__LINUX_RTNETLINK_H,rtnetlink.h) CFLAGS_tcp_metrics:=$(call get_hdr_inc,_LINUX_TCP_METRICS_H,tcp_metrics.h) diff --git a/tools/net/ynl/generated/Makefile b/tools/net/ynl/generated/Makefile index 21f9e299dc75..67ce3b8988ef 100644 --- a/tools/net/ynl/generated/Makefile +++ b/tools/net/ynl/generated/Makefile @@ -25,7 +25,7 @@ SPECS_DIR:=../../../../Documentation/netlink/specs GENS_PATHS=$(shell grep -nrI --files-without-match \ 'protocol: netlink' \ $(SPECS_DIR)) -GENS=$(patsubst $(SPECS_DIR)/%.yaml,%,${GENS_PATHS}) +GENS=$(patsubst $(SPECS_DIR)/%.yaml,%,${GENS_PATHS}) rt-addr SRCS=$(patsubst %,%-user.c,${GENS}) HDRS=$(patsubst %,%-user.h,${GENS}) OBJS=$(patsubst %,%-user.o,${GENS}) diff --git a/tools/net/ynl/samples/rt-addr.c b/tools/net/ynl/samples/rt-addr.c new file mode 100644 index 000000000000..c9a6436ad420 --- /dev/null +++ b/tools/net/ynl/samples/rt-addr.c @@ -0,0 +1,80 @@ +// SPDX-License-Identifier: GPL-2.0 +#include +#include + +#include + +#include +#include + +#include "rt-addr-user.h" + +static void rt_addr_print(struct rt_addr_getaddr_rsp *a, unsigned int op) +{ + char ifname[IF_NAMESIZE]; + char addr_str[64]; + const char *addr; + const char *name; + + name = if_indextoname(a->_hdr.ifa_index, ifname); + if (name) + printf("%16s: ", name); + + switch (a->_present.address_len) { + case 4: + addr = inet_ntop(AF_INET, a->address, + addr_str, sizeof(addr_str)); + break; + case 16: + addr = inet_ntop(AF_INET6, a->address, + addr_str, sizeof(addr_str)); + break; + default: + addr = NULL; + break; + } + if (addr) + printf("%s", addr); + else + printf("[%d]", a->_present.address_len); + + printf("\n"); +} + +int main(int argc, char **argv) +{ + struct rt_addr_getaddr_list *rsp; + struct rt_addr_getaddr_req *req; + struct ynl_error yerr; + struct ynl_sock *ys; + + ys = ynl_sock_create(&ynl_rt_addr_family, &yerr); + if (!ys) { + fprintf(stderr, "YNL: %s\n", yerr.msg); + return 1; + } + + req = rt_addr_getaddr_req_alloc(); + if (!req) + goto err_destroy; + + rsp = rt_addr_getaddr_dump(ys, req); + rt_addr_getaddr_req_free(req); + if (!rsp) + goto err_close; + + if (ynl_dump_empty(rsp)) + fprintf(stderr, "Error: no addresses reported\n"); + ynl_dump_foreach(rsp, addr) + rt_addr_print(addr, 0); + rt_addr_getaddr_list_free(rsp); + + ynl_sock_destroy(ys); + return 0; + +err_close: + fprintf(stderr, "YNL: %s\n", ys->err.msg); +err_destroy: + ynl_sock_destroy(ys); + return 2; +} diff --git a/tools/net/ynl/samples/.gitignore b/tools/net/ynl/samples/.gitignore index dda6686257a7..2bc8721d6144 100644 --- a/tools/net/ynl/samples/.gitignore +++ b/tools/net/ynl/samples/.gitignore @@ -2,4 +2,5 @@ ethtool devlink netdev ovs -page-pool \ No newline at end of file +page-pool +rt-addr -- 2.49.0