![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to ssapresync1.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [CSRG BSD Unix] / 43BSDReno / contrib / isode-beta / ssap|
Return to ssapresync1.c CVS log | Up to [CSRG BSD Unix] / 43BSDReno / contrib / isode-beta / ssap |
1.1 root 1: /* ssapresync.c - SPM: initiate resyncs */
2:
3: #ifndef lint
4: static char *rcsid = "$Header: /f/osi/ssap/RCS/ssapresync1.c,v 7.0 89/11/23 22:25:41 mrose Rel $";
5: #endif
6:
7: /*
8: * $Header: /f/osi/ssap/RCS/ssapresync1.c,v 7.0 89/11/23 22:25:41 mrose Rel $
9: *
10: *
11: * $Log: ssapresync1.c,v $
12: * Revision 7.0 89/11/23 22:25:41 mrose
13: * Release 6.0
14: *
15: */
16:
17: /*
18: * NOTICE
19: *
20: * Acquisition, use, and distribution of this module and related
21: * materials are subject to the restrictions of a license agreement.
22: * Consult the Preface in the User's Manual for the full terms of
23: * this agreement.
24: *
25: */
26:
27:
28: /* LINTLIBRARY */
29:
30: #include <stdio.h>
31: #include <signal.h>
32: #include "spkt.h"
33:
34: /* S-RESYNCHRONIZE.REQUEST */
35:
36: #define dotoken(requires,shift,bit,type) \
37: { \
38: if (sb -> sb_requirements & requires) \
39: switch (settings & (ST_MASK << shift)) { \
40: case ST_INIT_VALUE << shift: \
41: case ST_RESP_VALUE << shift: \
42: case ST_CALL_VALUE << shift: \
43: break; \
44: \
45: default: \
46: return ssaplose (si, SC_PARAMETER, NULLCP, \
47: "improper choice of %s token setting",type); \
48: } \
49: }
50:
51: /* */
52:
53: int SReSyncRequest (sd, type, ssn, settings, data, cc, si)
54: int sd;
55: int type,
56: settings;
57: long ssn;
58: char *data;
59: int cc;
60: struct SSAPindication *si;
61: {
62: SBV smask;
63: int result;
64: register struct ssapblk *sb;
65:
66: switch (type) {
67: case SYNC_RESTART:
68: break;
69:
70: case SYNC_ABANDON:
71: if (ssn != SERIAL_NONE)
72: return ssaplose (si, SC_PARAMETER, NULLCP,
73: "serial number inappropriate");
74: break;
75:
76: case SYNC_SET:
77: if (SERIAL_MIN > ssn || ssn > SERIAL_MAX + 1)
78: return ssaplose (si, SC_PARAMETER, NULLCP,
79: "invalid serial number");
80: break;
81:
82: default:
83: return ssaplose (si, SC_PARAMETER, NULLCP,
84: "improper choice of type setting");
85: }
86: missingP (si);
87:
88: smask = sigioblock ();
89:
90: ssapRsig (sb, sd);
91: toomuchP (sb, data, cc, SN_SIZE, "resync");
92:
93: result = SReSyncRequestAux (sb, type, ssn, settings, data, cc, si);
94:
95: (void) sigiomask (smask);
96:
97: return result;
98: }
99:
100: /* */
101:
102: static int SReSyncRequestAux (sb, type, ssn, settings, data, cc, si)
103: register struct ssapblk *sb;
104: int type,
105: settings;
106: long ssn;
107: char *data;
108: int cc;
109: register struct SSAPindication *si;
110: {
111: int result;
112:
113: if (!(sb -> sb_requirements & SR_RESYNC))
114: return ssaplose (si, SC_OPERATION, NULLCP,
115: "resynchronize service unavailable");
116:
117: if ((sb -> sb_requirements & SR_ACTIVITY)
118: && !(sb -> sb_flags & SB_Vact))
119: return ssaplose (si, SC_OPERATION, NULLCP,
120: "no activity in progress");
121:
122: if ((sb -> sb_flags & SB_RA)
123: && SDoCollideAux (sb -> sb_flags & SB_INIT ? 1 : 0, type, ssn,
124: sb -> sb_rs, sb -> sb_rsn) == NOTOK)
125: return ssaplose (si, SC_OPERATION, NULLCP,
126: "resync in progress takes precedence");
127:
128: switch (type) {
129: case SYNC_RESTART:
130: if (sb -> sb_V_M < ssn || ssn < sb -> sb_V_R)
131: return ssaplose (si, SC_OPERATION, NULLCP,
132: "bad choice for resync ssn, should be in [%d..%d]",
133: sb -> sb_V_R, sb -> sb_V_M);
134: break;
135:
136: case SYNC_ABANDON:
137: ssn = sb -> sb_V_M;
138: break;
139:
140: case SYNC_SET:
141: break;
142: }
143:
144: dotokens ();
145:
146: if ((result = SWriteRequestAux (sb, SPDU_RS, data, cc, type, ssn,
147: settings, NULLSD, NULLSD, NULLSR, si)) == NOTOK)
148: freesblk (sb);
149: else {
150: sb -> sb_flags |= SB_RS, sb -> sb_flags &= ~(SB_RA | SB_EDACK | SB_ERACK);
151: sb -> sb_rs = type;
152: sb -> sb_rsn = ssn;
153: sb -> sb_rsettings = sb -> sb_requirements & SR_TOKENS ? settings : 0;
154: }
155:
156: return result;
157: }
158:
159: #undef dotoken
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.