Int 61

FTP Software PC/TCP - TCP/IP TSR System Call interface

AH = system call number (also see entries below)
01h "pkt_alloc" (v2.05; this is "net_config" in v2.1+)
02h "pkt_free" (v2.05; this is "get_kernel_info" in v2.1+)

Return:
CF clear if successful
CF set on error
AL = basic error (see #03319)
AH = suberror number (see #03320,#03321)
InstallCheck:
Test for the signature "TCPTSR" three bytes beyond the start
of the interrupt handler
Range:
INT 20h to INT E0h, selected by configuration

BUG: The SLIP kernel for v2.05 bounds-checks the wrong register, so values greater than 54h in AH may crash the system. Other kernels may have this bug as well.

Index:
Installation check;PC/TCP

(Table 03319) Values for PC/TCP error code: 00h "NET_NOERR" successful 01h "NET_ERR_INUSE" protocol or socket already in use 02h "NET_DOS_ERR" MS-DOS error (returned as suberror code in AH) 03h "NET_ERR_NOMEM" out of memory 04h "NET_ERR_NOTNETCONN" not a network descriptor 05h "NET_ERR_ILLEGALOP" invalid operation on given kind of network descriptor 06h "NET_ERR_BADPKT" illegal or corrupted packet 07h "NET_ERR_NOHOST" no host bound to specified connection 08h "NET_ERR_CANTOPEN" unable to open file 09h "NET_ERR_NET_UNREACHABLE" network is unreachable 0Ah "NET_ERR_HOST_UNREACHABLE" host is unreachable (see #03320) 0Bh "NET_ERR_PROT_UNREACHABLE" protocol is unreachable 0Ch "NET_ERR_PORT_UNREACHABLE" port is unreachable 0Dh "NET_ERR_TIMEOUT" operation timed out 0Eh "NET_ERR_HOSTUNKNOWN" unable to resolve host name 0Fh "NET_ERR_NOSERVERS" no name servers configured 10h "NET_ERR_SERVER_ERR" bad reply from name server.

Subcodes:
0= no error, 1 = Host unreachable 11h "NET_ERR_BADFORMAT" bad format for IP address or field in IP address structure is zero 12h "NET_ERR_BADARG" invalid argument 13h "NET_ERR_EOF" foreign host closed its end of connection 14h "NET_ERR_RESET" connection has been reset 15h "NET_ERR_WOULDBLOCK" recv() call was done on a non-blocking connection with no data available 16h "NET_ERR_UNBOUND" insufficient resources to do operation 17h "NET_ERR_NODESC" could not allocate network descriptor 18h "NET_ERR_BADSYSCALL" invalid/unsupported kernel call 19h "NET_ERR_CANTBROADCAST" unable to broadcast 1Ah "NET_ERR_NOTESTAB" operation illegal because connection not established 1Bh kernel busy, try again later 1Ch "NET_ERR_ICMPMESG" an ICMP message was received (not on streams). (see #03321) ---v2.1+--- 1Dh "NET_ERR_TERMINATING" internal kernel fatal error 1Eh "NET_ERR_TAG_LOCKED" not allowed to set this tag (net_config) 1Fh "NET_ERR_BAD_INTERFACE" non existent interface specified 20h "NET_ERR_BADCONFIG" kernel cannot run - bad configuration 21h "NET_ERR_EMM" expanded memory error 22h "NET_ERR_CANT_SHUTDOWN" cant unload kernel (multitasker running) 23h "NET_ERR_PARKED_IN" unable to unhook DOS interrupt 24h "NET_ERR_NOQIOS" ran out of resources; try again later 25h "NET_ERR_WOULD_TRUNCATE" datagram too large and "don't truncate" was set

(Table 03320) Values for subcodes of PC/TCP error 0Ah "NET_ERR_HOST_UNREACHABLE": 00h no error 01h host unreachable 02h ARP failed 03h hardware failure 04h link failure 05h no route 06h gateway down

See Also: #03319 - #03321

(Table 03321) Values for subcodes of PC/TCP error 1Ch "NET_ERR_ICMPMESG": 07h unrecognised 08h can't fragment 09h srcr_fail 0Ah source quench 0Bh time exceeded 0Ch parameter problem 0Dh admin_prohib. see also code 0Ah

See Also: #03319 - #03320

Category: Network - Int 61h - F

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