164 |
|
|
165 |
const char *grubFindConfig(struct configFileInfo *cfi) { |
const char *grubFindConfig(struct configFileInfo *cfi) { |
166 |
static const char *configFiles[] = { |
static const char *configFiles[] = { |
|
"/etc/grub.conf", |
|
167 |
"/boot/grub/grub.conf", |
"/boot/grub/grub.conf", |
168 |
"/boot/grub/menu.lst", |
"/boot/grub/menu.lst", |
169 |
|
"/etc/grub.conf", |
170 |
NULL |
NULL |
171 |
}; |
}; |
172 |
static int i = -1; |
static int i = -1; |
1954 |
return; |
return; |
1955 |
} |
} |
1956 |
|
|
1957 |
printf("kernel=%s%s\n", prefix, line->elements[1].item); |
if (!strncmp(prefix, line->elements[1].item, strlen(prefix))) |
1958 |
|
printf("kernel=%s\n", line->elements[1].item); |
1959 |
|
else |
1960 |
|
printf("kernel=%s%s\n", prefix, line->elements[1].item); |
1961 |
|
|
1962 |
if (line->numElements >= 3) { |
if (line->numElements >= 3) { |
1963 |
printf("args=\""); |
printf("args=\""); |
2016 |
line = getLineByType(LT_INITRD, entry->lines); |
line = getLineByType(LT_INITRD, entry->lines); |
2017 |
|
|
2018 |
if (line && line->numElements >= 2) { |
if (line && line->numElements >= 2) { |
2019 |
printf("initrd=%s", prefix); |
if (!strncmp(prefix, line->elements[1].item, strlen(prefix))) |
2020 |
|
printf("initrd="); |
2021 |
|
else |
2022 |
|
printf("initrd=%s", prefix); |
2023 |
|
|
2024 |
for (i = 1; i < line->numElements; i++) |
for (i = 1; i < line->numElements; i++) |
2025 |
printf("%s%s", line->elements[i].item, line->elements[i].indent); |
printf("%s%s", line->elements[i].item, line->elements[i].indent); |
2026 |
printf("\n"); |
printf("\n"); |
2038 |
} |
} |
2039 |
} |
} |
2040 |
|
|
2041 |
|
int isSuseSystem(void) { |
2042 |
|
const char * path; |
2043 |
|
const static char default_path[] = "/etc/SuSE-release"; |
2044 |
|
|
2045 |
|
if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL) |
2046 |
|
path = default_path; |
2047 |
|
|
2048 |
|
if (!access(path, R_OK)) |
2049 |
|
return 1; |
2050 |
|
return 0; |
2051 |
|
} |
2052 |
|
|
2053 |
|
int isSuseGrubConf(const char * path) { |
2054 |
|
FILE * grubConf; |
2055 |
|
char * line = NULL; |
2056 |
|
size_t len = 0, res = 0; |
2057 |
|
|
2058 |
|
grubConf = fopen(path, "r"); |
2059 |
|
if (!grubConf) { |
2060 |
|
dbgPrintf("Could not open SuSE configuration file '%s'\n", path); |
2061 |
|
return 0; |
2062 |
|
} |
2063 |
|
|
2064 |
|
while ((res = getline(&line, &len, grubConf)) != -1) { |
2065 |
|
if (!strncmp(line, "setup", 5)) { |
2066 |
|
fclose(grubConf); |
2067 |
|
free(line); |
2068 |
|
return 1; |
2069 |
|
} |
2070 |
|
} |
2071 |
|
|
2072 |
|
dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n", |
2073 |
|
path); |
2074 |
|
|
2075 |
|
fclose(grubConf); |
2076 |
|
free(line); |
2077 |
|
return 0; |
2078 |
|
} |
2079 |
|
|
2080 |
|
int suseGrubConfGetLba(const char * path, int * lbaPtr) { |
2081 |
|
FILE * grubConf; |
2082 |
|
char * line = NULL; |
2083 |
|
size_t res = 0, len = 0; |
2084 |
|
|
2085 |
|
if (!path) return 1; |
2086 |
|
if (!lbaPtr) return 1; |
2087 |
|
|
2088 |
|
grubConf = fopen(path, "r"); |
2089 |
|
if (!grubConf) return 1; |
2090 |
|
|
2091 |
|
while ((res = getline(&line, &len, grubConf)) != -1) { |
2092 |
|
if (line[res - 1] == '\n') |
2093 |
|
line[res - 1] = '\0'; |
2094 |
|
else if (len > res) |
2095 |
|
line[res] = '\0'; |
2096 |
|
else { |
2097 |
|
line = realloc(line, res + 1); |
2098 |
|
line[res] = '\0'; |
2099 |
|
} |
2100 |
|
|
2101 |
|
if (!strncmp(line, "setup", 5)) { |
2102 |
|
if (strstr(line, "--force-lba")) { |
2103 |
|
*lbaPtr = 1; |
2104 |
|
} else { |
2105 |
|
*lbaPtr = 0; |
2106 |
|
} |
2107 |
|
dbgPrintf("lba: %i\n", *lbaPtr); |
2108 |
|
break; |
2109 |
|
} |
2110 |
|
} |
2111 |
|
|
2112 |
|
free(line); |
2113 |
|
fclose(grubConf); |
2114 |
|
return 0; |
2115 |
|
} |
2116 |
|
|
2117 |
|
int suseGrubConfGetInstallDevice(const char * path, char ** devicePtr) { |
2118 |
|
FILE * grubConf; |
2119 |
|
char * line = NULL; |
2120 |
|
size_t res = 0, len = 0; |
2121 |
|
char * lastParamPtr = NULL; |
2122 |
|
char * secLastParamPtr = NULL; |
2123 |
|
char installDeviceNumber = '\0'; |
2124 |
|
char * bounds = NULL; |
2125 |
|
|
2126 |
|
if (!path) return 1; |
2127 |
|
if (!devicePtr) return 1; |
2128 |
|
|
2129 |
|
grubConf = fopen(path, "r"); |
2130 |
|
if (!grubConf) return 1; |
2131 |
|
|
2132 |
|
while ((res = getline(&line, &len, grubConf)) != -1) { |
2133 |
|
if (strncmp(line, "setup", 5)) |
2134 |
|
continue; |
2135 |
|
|
2136 |
|
if (line[res - 1] == '\n') |
2137 |
|
line[res - 1] = '\0'; |
2138 |
|
else if (len > res) |
2139 |
|
line[res] = '\0'; |
2140 |
|
else { |
2141 |
|
line = realloc(line, res + 1); |
2142 |
|
line[res] = '\0'; |
2143 |
|
} |
2144 |
|
|
2145 |
|
lastParamPtr = bounds = line + res; |
2146 |
|
|
2147 |
|
/* Last parameter in grub may be an optional IMAGE_DEVICE */ |
2148 |
|
while (!isspace(*lastParamPtr)) |
2149 |
|
lastParamPtr--; |
2150 |
|
lastParamPtr++; |
2151 |
|
|
2152 |
|
secLastParamPtr = lastParamPtr - 2; |
2153 |
|
dbgPrintf("lastParamPtr: %s\n", lastParamPtr); |
2154 |
|
|
2155 |
|
if (lastParamPtr + 3 > bounds) { |
2156 |
|
dbgPrintf("lastParamPtr going over boundary"); |
2157 |
|
fclose(grubConf); |
2158 |
|
free(line); |
2159 |
|
return 1; |
2160 |
|
} |
2161 |
|
if (!strncmp(lastParamPtr, "(hd", 3)) |
2162 |
|
lastParamPtr += 3; |
2163 |
|
dbgPrintf("lastParamPtr: %c\n", *lastParamPtr); |
2164 |
|
|
2165 |
|
/* |
2166 |
|
* Second last parameter will decide wether last parameter is |
2167 |
|
* an IMAGE_DEVICE or INSTALL_DEVICE |
2168 |
|
*/ |
2169 |
|
while (!isspace(*secLastParamPtr)) |
2170 |
|
secLastParamPtr--; |
2171 |
|
secLastParamPtr++; |
2172 |
|
|
2173 |
|
if (secLastParamPtr + 3 > bounds) { |
2174 |
|
dbgPrintf("secLastParamPtr going over boundary"); |
2175 |
|
fclose(grubConf); |
2176 |
|
free(line); |
2177 |
|
return 1; |
2178 |
|
} |
2179 |
|
dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr); |
2180 |
|
if (!strncmp(secLastParamPtr, "(hd", 3)) { |
2181 |
|
secLastParamPtr += 3; |
2182 |
|
dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr); |
2183 |
|
installDeviceNumber = *secLastParamPtr; |
2184 |
|
} else { |
2185 |
|
installDeviceNumber = *lastParamPtr; |
2186 |
|
} |
2187 |
|
|
2188 |
|
*devicePtr = malloc(6); |
2189 |
|
snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber); |
2190 |
|
dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber); |
2191 |
|
fclose(grubConf); |
2192 |
|
free(line); |
2193 |
|
return 0; |
2194 |
|
} |
2195 |
|
|
2196 |
|
free(line); |
2197 |
|
fclose(grubConf); |
2198 |
|
return 1; |
2199 |
|
} |
2200 |
|
|
2201 |
|
int grubGetBootFromDeviceMap(const char * device, |
2202 |
|
char ** bootPtr) { |
2203 |
|
FILE * deviceMap; |
2204 |
|
char * line = NULL; |
2205 |
|
size_t res = 0, len = 0; |
2206 |
|
char * devicePtr; |
2207 |
|
char * bounds = NULL; |
2208 |
|
const char * path; |
2209 |
|
const static char default_path[] = "/boot/grub/device.map"; |
2210 |
|
|
2211 |
|
if (!device) return 1; |
2212 |
|
if (!bootPtr) return 1; |
2213 |
|
|
2214 |
|
if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL) |
2215 |
|
path = default_path; |
2216 |
|
|
2217 |
|
dbgPrintf("opening grub device.map file from: %s\n", path); |
2218 |
|
deviceMap = fopen(path, "r"); |
2219 |
|
if (!deviceMap) |
2220 |
|
return 1; |
2221 |
|
|
2222 |
|
while ((res = getline(&line, &len, deviceMap)) != -1) { |
2223 |
|
if (!strncmp(line, "#", 1)) |
2224 |
|
continue; |
2225 |
|
|
2226 |
|
if (line[res - 1] == '\n') |
2227 |
|
line[res - 1] = '\0'; |
2228 |
|
else if (len > res) |
2229 |
|
line[res] = '\0'; |
2230 |
|
else { |
2231 |
|
line = realloc(line, res + 1); |
2232 |
|
line[res] = '\0'; |
2233 |
|
} |
2234 |
|
|
2235 |
|
devicePtr = line; |
2236 |
|
bounds = line + res; |
2237 |
|
|
2238 |
|
while ((isspace(*line) && ((devicePtr + 1) <= bounds))) |
2239 |
|
devicePtr++; |
2240 |
|
dbgPrintf("device: %s\n", devicePtr); |
2241 |
|
|
2242 |
|
if (!strncmp(devicePtr, device, strlen(device))) { |
2243 |
|
devicePtr += strlen(device); |
2244 |
|
while (isspace(*devicePtr) && ((devicePtr + 1) <= bounds)) |
2245 |
|
devicePtr++; |
2246 |
|
|
2247 |
|
*bootPtr = strdup(devicePtr); |
2248 |
|
break; |
2249 |
|
} |
2250 |
|
} |
2251 |
|
|
2252 |
|
free(line); |
2253 |
|
fclose(deviceMap); |
2254 |
|
return 0; |
2255 |
|
} |
2256 |
|
|
2257 |
|
int suseGrubConfGetBoot(const char * path, char ** bootPtr) { |
2258 |
|
char * grubDevice; |
2259 |
|
|
2260 |
|
if (suseGrubConfGetInstallDevice(path, &grubDevice)) |
2261 |
|
dbgPrintf("error looking for grub installation device\n"); |
2262 |
|
else |
2263 |
|
dbgPrintf("grubby installation device: %s\n", grubDevice); |
2264 |
|
|
2265 |
|
if (grubGetBootFromDeviceMap(grubDevice, bootPtr)) |
2266 |
|
dbgPrintf("error looking for grub boot device\n"); |
2267 |
|
else |
2268 |
|
dbgPrintf("grubby boot device: %s\n", *bootPtr); |
2269 |
|
|
2270 |
|
free(grubDevice); |
2271 |
|
return 0; |
2272 |
|
} |
2273 |
|
|
2274 |
|
int parseSuseGrubConf(int * lbaPtr, char ** bootPtr) { |
2275 |
|
/* |
2276 |
|
* This SuSE grub configuration file at this location is not your average |
2277 |
|
* grub configuration file, but instead the grub commands used to setup |
2278 |
|
* grub on that system. |
2279 |
|
*/ |
2280 |
|
const char * path; |
2281 |
|
const static char default_path[] = "/etc/grub.conf"; |
2282 |
|
|
2283 |
|
if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL) |
2284 |
|
path = default_path; |
2285 |
|
|
2286 |
|
if (!isSuseGrubConf(path)) return 1; |
2287 |
|
|
2288 |
|
if (lbaPtr) { |
2289 |
|
*lbaPtr = 0; |
2290 |
|
if (suseGrubConfGetLba(path, lbaPtr)) |
2291 |
|
return 1; |
2292 |
|
} |
2293 |
|
|
2294 |
|
if (bootPtr) { |
2295 |
|
*bootPtr = NULL; |
2296 |
|
suseGrubConfGetBoot(path, bootPtr); |
2297 |
|
} |
2298 |
|
|
2299 |
|
return 0; |
2300 |
|
} |
2301 |
|
|
2302 |
int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) { |
int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) { |
2303 |
FILE * in; |
FILE * in; |
2304 |
char buf[1024]; |
char buf[1024]; |
2347 |
} |
} |
2348 |
|
|
2349 |
void dumpSysconfigGrub(void) { |
void dumpSysconfigGrub(void) { |
2350 |
char * boot; |
char * boot = NULL; |
2351 |
int lba; |
int lba; |
2352 |
|
|
2353 |
if (!parseSysconfigGrub(&lba, &boot)) { |
if (isSuseSystem()) { |
2354 |
if (lba) printf("lba\n"); |
if (parseSuseGrubConf(&lba, &boot)) { |
2355 |
if (boot) printf("boot=%s\n", boot); |
free(boot); |
2356 |
|
return; |
2357 |
|
} |
2358 |
|
} else { |
2359 |
|
if (parseSysconfigGrub(&lba, &boot)) { |
2360 |
|
free(boot); |
2361 |
|
return; |
2362 |
|
} |
2363 |
|
} |
2364 |
|
|
2365 |
|
if (lba) printf("lba\n"); |
2366 |
|
if (boot) { |
2367 |
|
printf("boot=%s\n", boot); |
2368 |
|
free(boot); |
2369 |
} |
} |
2370 |
} |
} |
2371 |
|
|
3179 |
int fd; |
int fd; |
3180 |
unsigned char bootSect[512]; |
unsigned char bootSect[512]; |
3181 |
char * boot; |
char * boot; |
3182 |
|
int onSuse = isSuseSystem(); |
3183 |
|
|
3184 |
if (parseSysconfigGrub(NULL, &boot)) |
|
3185 |
return 0; |
if (onSuse) { |
3186 |
|
if (parseSuseGrubConf(NULL, &boot)) |
3187 |
|
return 0; |
3188 |
|
} else { |
3189 |
|
if (parseSysconfigGrub(NULL, &boot)) |
3190 |
|
return 0; |
3191 |
|
} |
3192 |
|
|
3193 |
/* assume grub is not installed -- not an error condition */ |
/* assume grub is not installed -- not an error condition */ |
3194 |
if (!boot) |
if (!boot) |
3207 |
} |
} |
3208 |
close(fd); |
close(fd); |
3209 |
|
|
3210 |
|
/* The more elaborate checks do not work on SuSE. The checks done |
3211 |
|
* seem to be reasonble (at least for now), so just return success |
3212 |
|
*/ |
3213 |
|
if (onSuse) |
3214 |
|
return 2; |
3215 |
|
|
3216 |
return checkDeviceBootloader(boot, bootSect); |
return checkDeviceBootloader(boot, bootSect); |
3217 |
} |
} |
3218 |
|
|