On Feb 8, 2019 2:21 PM, Kihaguru Gathura <pqscr...@gmail.com> wrote: > > > > > Is there a /var/www/dev/cuaU2 > > Indeed this is present. created it before as follows: > > www# mkdir /var/www/dev > www# cd /var/www/dev > www# sh /dev/MAKEDEV ttyU2 > www# ls > cuaU2 ttyU2 > www# > > > > > On 2/8/19, Edgar Pettijohn <ed...@pettijohn-web.com> wrote: > > > > On Feb 8, 2019 9:01 AM, Kihaguru Gathura <pqscr...@gmail.com> wrote: > >> > >> Hi, > >> > >> What effective way can be used to apply permission to /dev/cuaU2 to > >> avoid the error below. > >> > >> > >> www# chroot -u www /var/www cgi-bin/modem > > > > Is there a /var/www/dev/cuaU2 > > > >> Status: 200 OK > >> Content-type: text/html > >> > >> cu: open("/dev/cuaU2"): Permission denied > >> > >> Note: chown www:daemon /dev/cuaU2 has not worked. chroot is in the > >> root folder which allows devices.
What about chown www:daemon /var/www/dev/cuaU0 > >> > >> /dev/sd0a (87d0b25f285b037a.a) on /mnt type ffs (rw, > >> asynchronous, local) > >> /dev/sd0e (87d0b25f285b037a.e) on /mnt/home type ffs (rw, > >> asynchronous, local, nodev, nosuid) > >> /dev/sd0d (87d0b25f285b037a.d) on /mnt/usr type ffs (rw, > >> asynchronous, local, nodev) > >> Where is /var/www mounted? > >> > >> > >> # dmesg > >> OpenBSD 6.4-current (GENERIC.MP) #253: Sun Nov 4 23:26:31 MST 2018 > >> dera...@arm64.openbsd.org:/usr/src/sys/arch/arm64/compile/GENERIC.MP > >> real mem = 961421312 (916MB) > >> avail mem = 902914048 (861MB) > >> mainbus0 at root: Raspberry Pi 3 Model B Rev 1.2 > >> cpu0 at mainbus0 mpidr 0: ARM Cortex-A53 r0p4 > >> cpu0: 32KB 64b/line 2-way L1 VIPT I-cache, 32KB 64b/line 4-way L1 D-cache > >> cpu0: 512KB 64b/line 16-way L2 cache > >> efi0 at mainbus0: UEFI 2.7 > >> efi0: Das U-Boot rev 0x20180900 > >> simplefb0 at mainbus0: 656x416, 32bpp > >> wsdisplay0 at simplefb0 mux 1 > >> wsdisplay0: screen 0-5 added (std, vt100 emulation) > >> simplebus0 at mainbus0: "soc" > >> bcmintc0 at simplebus0 > >> bcmdog0 at simplebus0 > >> bcmrng0 at simplebus0 > >> pluart0 at simplebus0 > >> bcmtemp0 at simplebus0 > >> bcmaux0 at simplebus0 > >> com0 at simplebus0: ns16550, no working fifo > >> com0: console > >> dwctwo0 at simplebus0 > >> simplebus1 at mainbus0: "clocks" > >> agtimer0 at mainbus0: tick rate 19200 KHz > >> cpu1 at mainbus0 mpidr 1: ARM Cortex-A53 r0p4 > >> cpu1: 32KB 64b/line 2-way L1 VIPT I-cache, 32KB 64b/line 4-way L1 D-cache > >> cpu1: 512KB 64b/line 16-way L2 cache > >> cpu2 at mainbus0 mpidr 2: ARM Cortex-A53 r0p4 > >> cpu2: 32KB 64b/line 2-way L1 VIPT I-cache, 32KB 64b/line 4-way L1 D-cache > >> cpu2: 512KB 64b/line 16-way L2 cache > >> cpu3 at mainbus0 mpidr 3: ARM Cortex-A53 r0p4 > >> cpu3: 32KB 64b/line 2-way L1 VIPT I-cache, 32KB 64b/line 4-way L1 D-cache > >> cpu3: 512KB 64b/line 16-way L2 cache > >> usb0 at dwctwo0: USB revision 2.0 > >> uhub0 at usb0 configuration 1 interface 0 "Broadcom DWC2 root hub" rev > >> 2.00/1.00 addr 1 > >> uhub1 at uhub0 port 1 configuration 1 interface 0 "Standard > >> Microsystems product 0x9514" rev 2.00/2.00 addr 2 > >> smsc0 at uhub1 port 1 configuration 1 interface 0 "Standard > >> Microsystems SMSC9512/14" rev 2.00/2.00 addr 3 > >> smsc0: address b8:27:eb:fd:e2:73 > >> ukphy0 at smsc0 phy 1: Generic IEEE 802.3u media interface, rev. 3: > >> OUI 0x0001f0, model 0x000c > >> umass0 at uhub1 port 3 configuration 1 interface 0 "HP v222w" rev > >> 2.00/11.00 addr 4 > >> umass0: using SCSI over Bulk-Only > >> scsibus0 at umass0: 2 targets, initiator 0 > >> sd0 at scsibus0 targ 1 lun 0: <hp, v222w, 1100> SCSI2 0/direct > >> removable serial.03f03f40AA0000000444 > >> sd0: 7680MB, 512 bytes/sector, 15728640 sectors > >> vscsi0 at root > >> scsibus1 at vscsi0: 256 targets > >> softraid0 at root > >> scsibus2 at softraid0: 256 targets > >> bootfile: sd0a:/bsd > >> boot device: sd0 > >> root on sd0a (87d0b25f285b037a.a) swap on sd0b dump on sd0b > >> WARNING: CHECK AND RESET THE DATE! > >> umsm0 at uhub1 port 5 configuration 1 interface 0 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> umsm1 at uhub1 port 5 configuration 1 interface 1 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> umsm0 detached > >> umsm1 detached > >> umsm0 at uhub1 port 5 configuration 1 interface 0 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> ucom0 at umsm0 > >> umsm1 at uhub1 port 5 configuration 1 interface 1 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> ucom1 at umsm1 > >> umsm2 at uhub1 port 5 configuration 1 interface 2 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> ucom2 at umsm2 > >> umass1 at uhub1 port 5 configuration 1 interface 3 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> umass1: using SCSI over Bulk-Only > >> scsibus3 at umass1: 2 targets, initiator 0 > >> cd0 at scsibus3 targ 1 lun 0: <HUAWEI, Mass Storage, 2.31> SCSI2 > >> 5/cdrom removable > >> uid 503 on /: file system full > >> uid 503 on /: file system full > >> uid 503 on /: file system full > >> uid 503 on /: file system full > >> uid 503 on /: file system full > >> uid 503 on /: file system full > >> uid 503 on /: file system full > >> uid 503 on /: file system full > >> uid 503 on /: file system full > >> uid 503 on /: file system full > >> uid 503 on /: file system full > >> coredump of postgres(24493) failed, filesystem full > >> uid 503 on /: file system full > >> uid 503 on /: file system full > >> ucom0 detached > >> umsm0 detached > >> ucom1 detached > >> umsm1 detached > >> ucom2 detached > >> umsm2 detached > >> cd0 detached > >> scsibus3 detached > >> umass1 detached > >> sd1 detached > >> scsibus4 detached > >> umass2 detached > >> umsm0 at uhub1 port 2 configuration 1 interface 0 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> umsm1 at uhub1 port 2 configuration 1 interface 1 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> umsm0 detached > >> umsm1 detached > >> umsm0 at uhub1 port 2 configuration 1 interface 0 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> ucom0 at umsm0 > >> umsm1 at uhub1 port 2 configuration 1 interface 1 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> ucom1 at umsm1 > >> umsm2 at uhub1 port 2 configuration 1 interface 2 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> ucom2 at umsm2 > >> umass1 at uhub1 port 2 configuration 1 interface 3 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> umass1: using SCSI over Bulk-Only > >> scsibus3 at umass1: 2 targets, initiator 0 > >> cd0 at scsibus3 targ 1 lun 0: <HUAWEI, Mass Storage, 2.31> SCSI2 > >> 5/cdrom removable > >> umass2 at uhub1 port 2 configuration 1 interface 4 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> umass2: using SCSI over Bulk-Only > >> scsibus4 at umass2: 2 targets, initiator 0 > >> sd1 at scsibus4 targ 1 lun 0: <HUAWEI, SD Storage, 2.31> SCSI2 > >> 0/direct removable > >> ucom0 detached > >> umsm0 detached > >> ucom1 detached > >> umsm1 detached > >> ucom2 detached > >> umsm2 detached > >> cd0 detached > >> scsibus3 detached > >> umass1 detached > >> sd1 detached > >> scsibus4 detached > >> umass2 detached > >> umsm0 at uhub1 port 2 configuration 1 interface 0 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> umsm1 at uhub1 port 2 configuration 1 interface 1 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> umsm0 detached > >> umsm1 detached > >> umsm0 at uhub1 port 2 configuration 1 interface 0 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> ucom0 at umsm0 > >> umsm1 at uhub1 port 2 configuration 1 interface 1 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> ucom1 at umsm1 > >> umsm2 at uhub1 port 2 configuration 1 interface 2 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> ucom2 at umsm2 > >> umass1 at uhub1 port 2 configuration 1 interface 3 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> umass1: using SCSI over Bulk-Only > >> scsibus3 at umass1: 2 targets, initiator 0 > >> cd0 at scsibus3 targ 1 lun 0: <HUAWEI, Mass Storage, 2.31> SCSI2 > >> 5/cdrom removable > >> umass2 at uhub1 port 2 configuration 1 interface 4 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5scsibus4 at umass2: 2 targets, initiator 0 > >> sd1 at scsibus4 targ 1 lun 0: <HUAWEI, SD Storage, 2.31> SCSI2 > >> 0/direct removable > >> ucom0 detached > >> umsm0 detached > >> ucom1 detached > >> umsm1 detached > >> ucom2 detached > >> umsm2 detached > >> cd0 detached > >> scsibus3 detached > >> umass1 detached > >> sd1 detached > >> scsibus4 detached > >> umass2 detached > >> umsm0 at uhub1 port 2 configuration 1 interface 0 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> umsm1 at uhub1 port 2 configuration 1 interface 1 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> umsm0 detached > >> umsm1 detached > >> umsm0 at uhub1 port 2 configuration 1 interface 0 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> ucom0 at umsm0 > >> umsm1 at uhub1 port 2 configuration 1 interface 1 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> ucom1 at umsm1 > >> umsm2 at uhub1 port 2 configuration 1 interface 2 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> ucom2 at umsm2 > >> umass1 at uhub1 port 2 configuration 1 interface 3 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> umass1: using SCSI over Bulk-Only > >> scsibus3 at umass1: 2 targets, initiator 0 > >> cd0 at scsibus3 targ 1 lun 0: <HUAWEI, Mass Storage, 2.31> SCSI2 > >> 5/cdrom removable > >> umass2 at uhub1 port 2 configuration 1 interface 4 "HUAWEI HUAWEI > >> Mobile" rev 2.00/1.02 addr 5 > >> umass2: using SCSI over Bulk-Only > >> scsibus4 at umass2: 2 targets, initiator 0 > >> sd1 at scsibus4 targ 1 lun 0: <HUAWEI, SD Storage, 2.31> SCSI2 > >> 0/direct removable > >> > >> Thanks, > >> > >> Kihaguru. > >> > >> On 9/11/18, Kihaguru Gathura <pqscr...@gmail.com> wrote: > >> > Hi, > >> > > >> > I am able to send SMS using AT commands and C outside chroot using > >> > code spinet below > >> > > >> > ------------------------------------------------------------------- > >> > #include <stdio.h> > >> > #include <time.h> > >> > #include <unistd.h> > >> > > >> > #define MODEM_PATH "cu -l /dev/cuaU0 -s 115200" > >> > > >> > int main() > >> > { > >> > FILE *out; > >> > char s[40]; > >> > > >> > printf("Content-type: text/html\n\n"); > >> > > >> > snprintf(s, sizeof(s), "%s", MODEM_PATH); > >> > ~ > >> > ~ > >> > ~ > >> > ~ > >> > ~ > >> > ~ > >> > return(0); > >> > } > >> > -------------------------------------------------------------------- > >> > > >> > however, running the program from within chroot, I get the message > >> > > >> > /dev/cuaU0 - No such file or directory > >> > > >> > All files needed by cu are properly copied to chroot and cu works fine. > >> > > >> > Question: > >> > > >> > 1: How do i get /dev/cuaU0 device accessible under chroot? > >> > > >> > 2: Is there a better i.e more secure approach to access modem from > >> > within chroot? > >> > > >> > > >