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#include <stdint.h>
#include <cstdlib>
#include <cstring>
#include <fstream>
#include <iostream>
#include <algorithm>
#include <vector>
#include <memory>
#include <systemd/sd-bus.h>
#include <mapper.h>
#include <phosphor-logging/elog.hpp>
#include <phosphor-logging/elog-errors-HostEvent.hpp>
#include "host-ipmid/ipmid-api.h"
#include "sensorhandler.h"
#include "storagehandler.h"
using namespace std;
using namespace phosphor::logging;
//////////////////////////
struct esel_section_headers_t {
uint8_t sectionid[2];
uint8_t sectionlength[2];
uint8_t version;
uint8_t subsectiontype;
uint8_t compid;
};
struct severity_values_t {
uint8_t type;
const char *description;
};
const std::vector<severity_values_t> g_sev_desc = {
{0x10, "recoverable error"},
{0x20, "predictive error"},
{0x40, "unrecoverable error"},
{0x50, "critical error"},
{0x60, "error from a diagnostic test"},
{0x70, "recovered symptom "},
{0xFF, "Unknown"},
};
const char* sev_lookup(uint8_t n) {
auto i = std::find_if(std::begin(g_sev_desc), std::end(g_sev_desc),
[n](auto p){ return p.type == n || p.type == 0xFF; });
return i->description;
}
int find_sensor_type_string(uint8_t sensor_number, char **s) {
dbus_interface_t a;
const char *p;
int r;
r = find_openbmc_path(sensor_number, &a);
if ((r < 0) || (a.bus[0] == 0)) {
// Just make a generic message for errors that
// occur on sensors that dont exist
r = asprintf(s, "Unknown Sensor (0x%02x)", sensor_number);
} else {
if ((p = strrchr (a.path, '/')) == NULL) {
p = "/Unknown Sensor";
}
*s = strdup(p+1);
}
return 0;
}
size_t getfilestream(const char *fn, uint8_t **buffer) {
FILE *fp;
ssize_t size = 0;
int r;
if ((fp = fopen(fn, "rb")) != NULL) {
r = fseek(fp, 0, SEEK_END);
if (r) {
fprintf(stderr,"Fseek failed\n");
goto fclose_fp;
}
size = ftell(fp);
if (size == -1L) {
fprintf(stderr,"Ftell failed for %s\n", strerror(errno));
size = 0;
goto fclose_fp;
}
r = fseek(fp, 0, SEEK_SET);
if (r) {
fprintf(stderr,"Fseek failed\n");
size = 0;
goto fclose_fp;
}
*buffer = new uint8_t [size];
r = fread(*buffer, 1, size, fp);
if ( r != size) {
size = 0;
fprintf(stderr,"Fread failed\n");
}
fclose_fp:
fclose(fp);
}
return static_cast<size_t>(size);
}
const char *create_esel_severity(const uint8_t *buffer) {
uint8_t severity;
// Dive in to the IBM log to find the severity
severity = (0xF0 & buffer[0x4A]);
return sev_lookup(severity);
}
int create_esel_association(const uint8_t *buffer, char **m) {
ipmi_add_sel_request_t *p;
dbus_interface_t dbusint;
uint8_t sensor;
p = ( ipmi_add_sel_request_t *) buffer;
sensor = p->sensornumber;
find_openbmc_path(sensor, &dbusint);
// Simply no associations if the sensor can not be found
if (strlen(dbusint.path) < 1) {
printf("Sensor 0x%x not found\n", sensor);
memset(dbusint.path,0,sizeof(dbusint.path));
}
*m = strdup(dbusint.path);
return 0;
}
int create_esel_description(const uint8_t *buffer, const char *sev, char **message) {
ipmi_add_sel_request_t *p;
char *m;
int r;
p = ( ipmi_add_sel_request_t *) buffer;
find_sensor_type_string(p->sensornumber,&m);
r = asprintf(message, "A %s has experienced a %s", m, sev );
if (r == -1) {
fprintf(stderr,
"Failed to allocate memory for ESEL description\n");
}
free(m);
return 0;
}
int send_esel_to_dbus(const char *desc, const char *sev, const char *details, uint8_t *debug, size_t debuglen) {
// Allocate enough space to represent the data in hex separated by spaces,
// to mimic how IPMI would display the data.
unique_ptr<char[]> selData(new char[(debuglen*3) + 1]());
uint32_t i = 0;
for(i = 0; i < debuglen; i++)
{
sprintf(&selData[i*3], "%02x ", 0xFF & ((char*)debug)[i]);
}
selData[debuglen*3] = '\0';
using error = org::open_power::Error::Host::Event;
report<error>(error::ESEL(selData.get()));
return 0;
}
void send_esel(uint16_t recordid) {
char *desc, *assoc;
const char *sev;
uint8_t *buffer = NULL;
const char *path = "/tmp/esel";
ssize_t sz;
int r;
sz = getfilestream(path, &buffer);
if (sz == 0) {
printf("Error file does not exist %d\n",__LINE__);
return;
}
sev = create_esel_severity(buffer);
create_esel_association(buffer, &assoc);
create_esel_description(buffer, sev, &desc);
r = send_esel_to_dbus(desc, sev, assoc, buffer, sz);
if (r < 0) {
fprintf(stderr, "Failed to send esel to dbus\n");
}
free(assoc);
free(desc);
delete[] buffer;
return;
}
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