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https://github.com/Fishwaldo/u-boot.git
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c7f5b85034
This driver interferes with other sandbox tests since it causes log output to be interspersed with "No ethernet found." messages. Disable this driver by default. Enable it for the syslog tests so that they still pass. Signed-off-by: Simon Glass <sjg@chromium.org>
110 lines
2.5 KiB
C
110 lines
2.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Log to syslog.
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*
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* Copyright (c) 2020, Heinrich Schuchardt <xypron.glpk@gmx.de>
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*/
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#include <common.h>
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#include <log.h>
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#include <net.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define BUFFER_SIZE 480
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static void append(char **buf, char *buf_end, const char *fmt, ...)
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{
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va_list args;
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size_t size = buf_end - *buf;
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va_start(args, fmt);
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vsnprintf(*buf, size, fmt, args);
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va_end(args);
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*buf += strlen(*buf);
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}
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static int log_syslog_emit(struct log_device *ldev, struct log_rec *rec)
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{
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int ret;
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int fmt = gd->log_fmt;
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char msg[BUFFER_SIZE];
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char *msg_end = msg + BUFFER_SIZE;
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char *ptr = msg;
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char *iphdr;
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char *log_msg;
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int eth_hdr_size;
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struct in_addr bcast_ip;
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unsigned int log_level;
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char *log_hostname;
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/* Setup packet buffers */
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net_init();
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/* Disable hardware and put it into the reset state */
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eth_halt();
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/* Set current device according to environment variables */
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eth_set_current();
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/* Get hardware ready for send and receive operations */
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ret = eth_init();
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if (ret < 0) {
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eth_halt();
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goto out;
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}
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memset(msg, 0, BUFFER_SIZE);
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/* Set ethernet header */
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eth_hdr_size = net_set_ether((uchar *)ptr, net_bcast_ethaddr, PROT_IP);
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ptr += eth_hdr_size;
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iphdr = ptr;
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ptr += IP_UDP_HDR_SIZE;
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log_msg = ptr;
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/*
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* The syslog log levels defined in RFC 5424 match the U-Boot ones up to
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* level 7 (debug).
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*/
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log_level = rec->level;
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if (log_level > 7)
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log_level = 7;
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/* Leave high bits as 0 to write a 'kernel message' */
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/* Write log message to buffer */
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append(&ptr, msg_end, "<%u>", log_level);
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log_hostname = env_get("log_hostname");
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if (log_hostname)
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append(&ptr, msg_end, "%s ", log_hostname);
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append(&ptr, msg_end, "uboot: ");
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if (fmt & BIT(LOGF_LEVEL))
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append(&ptr, msg_end, "%s.",
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log_get_level_name(rec->level));
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if (fmt & BIT(LOGF_CAT))
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append(&ptr, msg_end, "%s,",
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log_get_cat_name(rec->cat));
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if (fmt & BIT(LOGF_FILE))
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append(&ptr, msg_end, "%s:", rec->file);
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if (fmt & BIT(LOGF_LINE))
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append(&ptr, msg_end, "%d-", rec->line);
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if (fmt & BIT(LOGF_FUNC))
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append(&ptr, msg_end, "%s()", rec->func);
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if (fmt & BIT(LOGF_MSG))
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append(&ptr, msg_end, "%s%s",
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fmt != BIT(LOGF_MSG) ? " " : "", rec->msg);
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/* Consider trailing 0x00 */
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ptr++;
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debug("log message: '%s'\n", log_msg);
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/* Broadcast message */
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bcast_ip.s_addr = 0xFFFFFFFFL;
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net_set_udp_header((uchar *)iphdr, bcast_ip, 514, 514, ptr - log_msg);
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net_send_packet((uchar *)msg, ptr - msg);
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out:
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return ret;
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}
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LOG_DRIVER(syslog) = {
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.name = "syslog",
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.emit = log_syslog_emit,
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};
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