1# /usr/etc/rc - continued system initialization. 2 3RANDOM_FILE=/usr/adm/random.dat 4TCPISN_FILE=/usr/adm/tcpisn.dat 5LOCAL_FILE=/usr/etc/rc.local 6 7ARCH="`sysenv arch`" 8 9if [ ! "$ARCH" ] 10then # Older kernels do not provide an arch sysenv variable. 11 # We assume we are on x86 then, as existing systems with 12 # kernel and userland (i.e. this script) unsynchronized 13 # will be x86. 14 ARCH=i386 15fi 16 17# Get $SERVICES_DIRS 18. /etc/rc.conf 19 20# Directories to find services in 21if [ ! "$SERVICES_DIRS" ] 22then SERVICES_DIRS=/service 23fi 24 25# Booting from cd? 26bootcd="`/bin/sysenv bootcd`" 27 28case "$#:$1" in 291:start|1:stop) 30 action=$1 31 ;; 32*) echo >&2 "Usage: $0 [start|stop]" 33 exit 1 34esac 35 36if [ -f "$LOCAL_FILE" ] 37then . "$LOCAL_FILE" $1 38fi 39 40disabled() 41{ 42 ifs="$IFS"; IFS=, 43 for skip in `sysenv disable` 44 do 45 if [ "$skip" = "$1" ] 46 then 47 IFS="$ifs"; unset ifs 48 return 0 49 fi 50 done 51 IFS="$ifs"; unset ifs 52 return 1 53} 54 55daemonize() 56{ 57 # Function to start a daemon, if it exists. 58 local IFS=':' 59 local name="$1" 60 61 for dir in $PATH 62 do 63 if [ -f "$dir/$1" ] 64 then 65 66 # check if this service is disabled at the boot monitor. 67 if disabled $name; then return; fi 68 69 echo -n " $name" 70 "$@" & 71 return 72 fi 73 done 74} 75 76up() 77{ 78 # Function to dynamically start a system service 79 opt="" 80 prefix=$(expr "$1 " : '\(-\)') 81 if [ "$prefix" = "-" ]; 82 then 83 opt=$1 84 shift 85 fi 86 service=$1 87 shift 88 89 # First check if this service is disabled at the boot monitor. 90 if disabled $service; then return; fi 91 92 # Service is not disabled. Try to bring it up. 93 found="" 94 for dir in $SERVICES_DIRS 95 do bin=$dir/$service 96 if [ -x $bin -a -z "$found" ] 97 then minix-service $opt up $bin "$@" 98 echo -n " $service" 99 found=yes 100 fi 101 done 102 if [ -z "$found" ] 103 then echo " ($service not found in $SERVICES_DIRS)" 104 fi 105} 106 107# Print a list of labels of detected PCI ethernet hardware devices. 108get_pci_eth_labels() 109{ 110 # We need to match all PCI ethernet hardware devices against all 111 # drivers. For performance reasons, we construct a lookup table on the 112 # fly here. In order to do that, we need to give both a list of all 113 # available network drivers with PCI device IDs (part 1 of the code 114 # below) and a list of all actually present ethernet hardware devices 115 # (part 2) to an awk script (part 3). The awk script can tell the 116 # difference between the list entries based on whether there is a 117 # leading space on the line. For part 2, we grab only devices that are 118 # in PCI class 2 (network controller) subclass 0 (ethernet controller). 119 120 # Part 1: collect all network drivers with supported PCI IDs 121 (for dir in $SYSTEM_CONF_DIRS; do 122 for f in $dir/$SYSTEM_CONF_SUBDIR/*; do 123 if [ -f $f ]; then 124 printconfig $f | grep ',type net.*,pci device' 125 fi 126 done 127 done | sed 's/^service \([^,]*\),.*,pci device/ \1/g'; 128 # Part 2: grab all PCI IDs of ethernet hardware devices (class 2/0) 129 cat /proc/pci | grep '^[^ ]* 2/0/' | cut -d' ' -f3) | awk ' 130 # Part 3: first construct a PCI-ID-to-driver table based on the lines 131 # produced by part 1 (with leading space), which each contain one 132 # driver name followed by one or more PCI IDs; then, go through all 133 # the ethernet hardware devices found in part 2 (no leading space) and 134 # if if there is a hit in the table, print the driver label to use. 135 /^ / { for (i=2;i<=NF;i++) drivers[$(i)]=$1 } 136 /^[^ ]/ { 137 # There is a bit of a discrepancy between output formats of 138 # /proc/pci and printconfig: the former uses 139 # "vid:did:sub_vid:sub_did" whereas the latter uses 140 # "vid:did/sub_vid:sub_did". No problem; in the common case 141 # (= no sub IDs used) we need to split the PCI ID anyway. 142 if (split($1,id,":") >= 4) { 143 # Try a full "vid:did:sub_vid:sub_did" match. 144 name=drivers[id[1]":"id[2]"/"id[3]":"id[4]] 145 } 146 # No sub IDs or no match found? Try a "vid:did" match. 147 if (!name) name=drivers[id[1]":"id[2]] 148 # If found, print the resulting label (<name>_<instance>) 149 if (name) { 150 print name"_"(instance[name]+0) 151 instance[name]++ 152 } 153 } 154 ' 155} 156 157# Print a list of labels of ethernet hardware devices that have been detected 158# to be present on the system. Each label has the format '<driver>_<instance>' 159# where <driver> is the file name of the driver (in /service) and <instance> is 160# a zero-based, per-driver instance number of the device. 161get_eth_labels() { 162 # For now, do autodetection only on platforms with (x86) PCI support. 163 # For (x86) ISA drivers, a custom network setting script is required; 164 # see below. For ARM platforms, the driver (if any) is started based 165 # on the board; there is no device autodetection. 166 if [ -f /proc/pci ]; then 167 get_pci_eth_labels 168 fi 169 170 # Add any network drivers manually configured in /usr/etc/rc.local by 171 # the netconf(8) utility. 172 if [ -n "$netdriver" ]; then 173 echo "${netdriver}_0" 174 fi 175} 176 177# Detect expansion boards on the BeagleBone and load the proper drivers. 178capemgr() { 179 180 # Probe each possible cape EEPROM slave address for a BeagleBone cape. 181 for slave_addr in 54 55 56 57 182 do 183 184 # See if there is a readable EEPROM with address ${slave_addr}. 185 eepromread -f /dev/i2c-3 -a 0x${slave_addr} > /dev/null 2>&1 186 RESULT=$? 187 if [ $RESULT -eq 0 ] 188 then 189 190 # Found an alive EEPROM. Try reading the cape name. 191 CAPE=`eepromread -i -f /dev/i2c-3 -a 0x${slave_addr} | \ 192 sed -n 's/^PART_NUMBER : \(.*\)$/\1/p' | \ 193 sed -e 's/\.*$//g'` # Strip trailing periods. 194 195 # Look for a cape specific RC script. 196 if [ -x /etc/rc.capes/${CAPE} ] 197 then 198 199 # CAT24C256 EEPROM -- all capes have this chip. 200 test -e /dev/eepromb3s${slave_addr} || \ 201 (cd /dev && MAKEDEV eepromb3s${slave_addr}) 202 up cat24c256 -dev /dev/eepromb3s${slave_addr} \ 203 -label cat24c256.3.${slave_addr} \ 204 -args "bus=3 address=0x${slave_addr}" 205 206 # Load the drivers for the cape and do any other configuration. 207 . "/etc/rc.capes/${CAPE}" 208 209 else 210 211 echo "" 212 echo "** UNSUPPORTED CAPE: ${CAPE}" 213 echo "" 214 215 fi 216 fi 217 done 218} 219 220case $action in 221start) 222 # Select console font. 223 test -f /etc/font && loadfont /etc/font </dev/console 224 225 # Cleanup. 226 rm -rf /tmp/* /usr/run/* /usr/spool/lpd/* /usr/spool/locks/* 227 228 # Start servers and drivers set at the boot monitor. 229 echo -n "Starting services:" 230 up -n random -dev /dev/random -period 3HZ 231 232 # load random number generator 233 if [ -f $RANDOM_FILE ] 234 then 235 cat < $RANDOM_FILE >/dev/random 236 # overwrite $RANDOM_FILE. We don't want to use this data again 237 dd if=/dev/random of=$RANDOM_FILE bs=1024 count=1 2> /dev/null 238 else 239 # We couldn't find the old state to restart from, so use a binary 240 # file and the current date instead, even if this is less than ideal. 241 cat /bin/sh >> /dev/urandom 242 date >> /dev/urandom 243 fi 244 245 # start network driver instances for all detected ethernet devices 246 for label in $(get_eth_labels); do 247 driver=$(echo $label | sed 's/\(.*\)_.*/\1/') 248 instance=$(echo $label | sed 's/.*_//') 249 eval arg=\$${driver}_arg 250 if [ ! -z "$arg" ]; then arg=" $arg"; fi 251 arg="-args \"instance=$instance$arg\"" 252 eval up $driver -label $label $arg -period 5HZ 253 done 254 255 # pty needs to know the "tty" group ID 256 up pty -dev /dev/ptmx -args "gid=`stat -f '%g' /dev/ptmx`" 257 258 # Start the LWIP service. 259 up lwip -dev /dev/bpf -script /etc/rs.lwip 260 261 # Load stable seed for TCP Initial Sequence Number generation (RFC 6528). 262 # The idea here is that (especially) after a system crash, the seed stays 263 # the same, so as to make it unlikely that incoming packets for connections 264 # from before the crash are accepted on connections after the crash. 265 TCPISN_LEN=$(sysctl -n net.inet.tcp.isn_secret | awk '{print length/2}') 266 if [ ! -f $TCPISN_FILE ]; then 267 # If the /usr file system is read-only, we cannot create the file. In 268 # that case, we draw a temporary secret from the random service. 269 if grep ' \/usr .*rw.*' /etc/mtab >/dev/null; then 270 dd if=/dev/random of=$TCPISN_FILE bs=$TCPISN_LEN count=1 2>/dev/null 271 else 272 TCPISN_FILE=/dev/random 273 fi 274 fi 275 sysctl -qw net.inet.tcp.isn_secret=`dd if=$TCPISN_FILE bs=$TCPISN_LEN \ 276 count=1 2>/dev/null | hexdump -v -e '/1 "%02x"'` 2>/dev/null 277 278 # LWIP does not block until all network drivers have fully initialized and 279 # reported back to LWIP. That may prevent proper configuration of the 280 # corresponding interfaces a bit later. Sleep up to five seconds waiting 281 # for all registered network drivers to initialize and report to LWIP. 282 for i in 1 2 3 4 5; do 283 [ $(sysctl -n minix.lwip.drivers.pending) -gt 0 ] && sleep 1 284 done 285 286 up uds 287 288 up -n ipc 289 290 up log -dev /dev/klog 291 292 if [ $ARCH = i386 ] 293 then 294 up -n printer -dev /dev/lp -period 10HZ 295 # start VirtualBox time sync driver if the device is there 296 if grep '^[^ ]* [^ ]* 80EE:CAFE[^ ]* ' /proc/pci >/dev/null; then 297 up -n vbox -period 10HZ 298 fi 299 fi 300 301 echo . 302 303 echo -n "Starting daemons:" 304 daemonize update 305 306 # Ugly error message when starting cron from CD. 307 # (and cron unnecessary then so..) 308 if [ ! -f /CD ] 309 then daemonize cron 310 else mkdir /tmp/log 311 rm -f /var/log || true 312 ln -s /tmp/log /var/log || true 313 . /etc/rc.cd 314 fi 315 316 echo . 317 318 # i2c only supported on ARM at the moment 319 if [ $ARCH = earm ] 320 then 321 echo -n "Starting i2c subsystem: " 322 for bus in 1 2 3 323 do 324 test -e /dev/i2c-${bus} || (cd /dev && MAKEDEV i2c-${bus}) 325 up i2c -dev /dev/i2c-${bus} -label i2c.${bus} \ 326 -args instance=${bus} 327 done 328 echo . 329 330 BOARD_NAME=`sysenv board` 331 case "${BOARD_NAME}" in 332 333 ARM-ARMV7-TI-BB-WHITE) 334 echo "Running on a BeagleBone" 335 echo -n "Starting i2c device drivers: " 336 337 # start EEPROM driver for reading board info 338 test -e /dev/eepromb1s50 || \ 339 (cd /dev && MAKEDEV eepromb1s50) 340 up cat24c256 -dev /dev/eepromb1s50 \ 341 -label cat24c256.1.50 \ 342 -args 'bus=1 address=0x50' 343 344 # Start TPS65217 driver for power management. 345 up tps65217 -label tps65217.1.24 \ 346 -args 'bus=1 address=0x24' 347 348 # Start ethernet driver. 349 up lan8710a -label lan8710a_0 -args 'instance=0' 350 351 # check for the presence of a display 352 eepromread -f /dev/i2c-2 -n > /dev/null 2>&1 353 RESULT=$? 354 if [ $RESULT -eq 0 ] 355 then 356 # start eeprom driver for reading EDID. 357 test -e /dev/eepromb2s50 || \ 358 (cd /dev && MAKEDEV eepromb2s50) 359 up cat24c256 -dev /dev/eepromb2s50 \ 360 -label cat24c256.2.50 \ 361 -args 'bus=2 address=0x50' 362 363 # start frame buffer 364 #up fb -dev /dev/fb0 -args edid.0=cat24c256.2.50 365 # fb hasn't been ported to AM335X yet. 366 fi 367 368 if [ -e /service/usbd ] 369 then 370 echo "Starting USBD" 371 up usbd 372 fi 373 # Detect expansion boards and start drivers. 374 capemgr 375 376 ;; 377 378 ARM-ARMV7-TI-BB-BLACK) 379 echo "Running on a BeagleBone Black" 380 echo -n "Starting i2c device drivers: " 381 382 # start EEPROM driver for reading board info 383 test -e /dev/eepromb1s50 || \ 384 (cd /dev && MAKEDEV eepromb1s50) 385 up cat24c256 -dev /dev/eepromb1s50 \ 386 -label cat24c256.1.50 \ 387 -args 'bus=1 address=0x50' 388 389 # Start TPS65217 driver for power management. 390 up tps65217 -label tps65217.1.24 \ 391 -args 'bus=1 address=0x24' 392 393 # Start TDA19988 driver for reading EDID. 394 up tda19988 -label tda19988.1.3470 -args \ 395 'cec_bus=1 cec_address=0x34 hdmi_bus=1 hdmi_address=0x70' 396 397 # Start ethernet driver. 398 up lan8710a -label lan8710a_0 -args 'instance=0' 399 400 # start frame buffer 401 #up fb -dev /dev/fb0 -args edid.0=tda19988.1.3470 402 # fb hasn't been ported to AM335X yet. 403 404 if [ -e /service/usbd ] 405 then 406 echo "Starting USBD" 407 up usbd 408 fi 409 # Detect expansion boards and start drivers. 410 capemgr 411 412 ;; 413 414 ARM-ARMV7-TI-BBXM-GENERIC) 415 echo "Running on a BeagleBoard-xM" 416 echo -n "Starting i2c device drivers: " 417 418 # Start TPS65950 driver for power management. 419 up tps65950 -label tps65950.1.48 \ 420 -args 'bus=1 address=0x48' 421 422 # Set the system time to the time in the TPS65950's RTC 423 readclock 424 425 # check for the presence of a display 426 eepromread -f /dev/i2c-3 -n > /dev/null 2>&1 427 RESULT=$? 428 if [ $RESULT -eq 0 ] 429 then 430 # start eeprom driver for reading edid 431 test -e /dev/eepromb3s50 || \ 432 (cd /dev && MAKEDEV eepromb3s50) 433 up cat24c256 -dev /dev/eepromb3s50 \ 434 -label cat24c256.3.50 \ 435 -args 'bus=3 address=0x50' 436 437 # start frame buffer 438 up fb -dev /dev/fb0 -args edid.0=cat24c256.3.50 439 fi 440 441 ;; 442 esac 443 444 echo . 445 fi 446 447 # Load the stored hostname into the sysctl database. 448 test -r /etc/hostname.file && hostname $(cat /etc/hostname.file) 449 450 # Recover files being edited when the system crashed. 451 test -f /usr/bin/elvprsv && elvprsv /usr/tmp/elv* 452 453 # Run the daily cleanup on systems that are not on at night. 454 test -f /usr/etc/daily && sh /usr/etc/daily boot & 455;; 456stop) 457 # Save random data, if /usr is mounted rw. 458 if grep ' \/usr .*rw.*' /etc/mtab >/dev/null 459 then 460 if dd if=/dev/random of=$RANDOM_FILE.new bs=1024 count=1 2>/dev/null 461 then 462 mv $RANDOM_FILE.new $RANDOM_FILE 463 else 464 echo 'Failed to save random data.' 465 fi 466 fi 467esac 468