1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
2 | /* atmsvc.h - ATM signaling kernel-demon interface definitions */ |
3 | |
4 | /* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */ |
5 | |
6 | |
7 | #ifndef _LINUX_ATMSVC_H |
8 | #define _LINUX_ATMSVC_H |
9 | |
10 | #include <linux/atmapi.h> |
11 | #include <linux/atm.h> |
12 | #include <linux/atmioc.h> |
13 | |
14 | |
15 | #define ATMSIGD_CTRL _IO('a',ATMIOC_SPECIAL) |
16 | /* become ATM signaling demon control socket */ |
17 | |
18 | enum atmsvc_msg_type { as_catch_null, as_bind, as_connect, as_accept, as_reject, |
19 | as_listen, as_okay, as_error, as_indicate, as_close, |
20 | as_itf_notify, as_modify, as_identify, as_terminate, |
21 | as_addparty, as_dropparty }; |
22 | |
23 | struct atmsvc_msg { |
24 | enum atmsvc_msg_type type; |
25 | atm_kptr_t vcc; |
26 | atm_kptr_t listen_vcc; /* indicate */ |
27 | int reply; /* for okay and close: */ |
28 | /* < 0: error before active */ |
29 | /* (sigd has discarded ctx) */ |
30 | /* ==0: success */ |
31 | /* > 0: error when active (still */ |
32 | /* need to close) */ |
33 | struct sockaddr_atmpvc pvc; /* indicate, okay (connect) */ |
34 | struct sockaddr_atmsvc local; /* local SVC address */ |
35 | struct atm_qos qos; /* QOS parameters */ |
36 | struct atm_sap sap; /* SAP */ |
37 | unsigned int session; /* for p2pm */ |
38 | struct sockaddr_atmsvc svc; /* SVC address */ |
39 | } __ATM_API_ALIGN; |
40 | |
41 | /* |
42 | * Message contents: see ftp://icaftp.epfl.ch/pub/linux/atm/docs/isp-*.tar.gz |
43 | */ |
44 | |
45 | /* |
46 | * Some policy stuff for atmsigd and for net/atm/svc.c. Both have to agree on |
47 | * what PCR is used to request bandwidth from the device driver. net/atm/svc.c |
48 | * tries to do better than that, but only if there's no routing decision (i.e. |
49 | * if signaling only uses one ATM interface). |
50 | */ |
51 | |
52 | #define SELECT_TOP_PCR(tp) ((tp).pcr ? (tp).pcr : \ |
53 | (tp).max_pcr && (tp).max_pcr != ATM_MAX_PCR ? (tp).max_pcr : \ |
54 | (tp).min_pcr ? (tp).min_pcr : ATM_MAX_PCR) |
55 | |
56 | #endif |
57 | |