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Commit | Line | Data |
---|---|---|
905c2ba2 | 1 | |
2 | /* | |
3 | * Handle the scan queues | |
4 | */ | |
5 | ||
6 | #include "proxyscan.h" | |
92f1d9e3 | 7 | #include "../irc/irc.h" |
905c2ba2 | 8 | |
9 | pendingscan *ps_normalqueue=NULL; | |
10 | pendingscan *ps_prioqueue=NULL; | |
11 | pendingscan *ps_normalqueueend=NULL; | |
12 | ||
13 | unsigned int normalqueuedscans=0; | |
14 | unsigned int prioqueuedscans=0; | |
15 | ||
92f1d9e3 D |
16 | unsigned long countpendingscan=0; |
17 | ||
905c2ba2 | 18 | void queuescan(unsigned int IP, short scantype, unsigned short port, char class, time_t when) { |
19 | pendingscan *psp, *psp2; | |
761a4596 P |
20 | |
21 | /* check if the IP/port combo is already queued - don't queue up | |
22 | * multiple identical scans | |
23 | */ | |
24 | psp = ps_prioqueue; | |
25 | while (psp != NULL) | |
26 | { | |
27 | if (psp->IP == IP && psp->type == scantype && | |
28 | psp->port == port && psp->class == class) | |
29 | { | |
30 | /* found it, ignore */ | |
31 | return; | |
32 | } | |
33 | psp = psp->next; | |
34 | } | |
35 | ||
36 | psp = ps_normalqueue; | |
37 | while (psp != NULL) | |
38 | { | |
39 | if (psp->IP == IP && psp->type == scantype && | |
40 | psp->port == port && psp->class == class) | |
41 | { | |
42 | /* found it, ignore */ | |
43 | return; | |
44 | } | |
45 | psp = psp->next; | |
46 | } | |
905c2ba2 | 47 | |
48 | /* If there are scans spare, just start it immediately.. | |
49 | * provided we're not supposed to wait */ | |
761a4596 | 50 | if (activescans < maxscans && when<=time(NULL) && (ps_start_ts+120 <= time(NULL))) { |
905c2ba2 | 51 | startscan(IP, scantype, port, class); |
52 | return; | |
53 | } | |
54 | ||
55 | /* We have to queue it */ | |
92f1d9e3 D |
56 | psp = (struct pendingscan *) malloc(sizeof(pendingscan)); |
57 | if (!psp) | |
58 | { | |
59 | /* shutdown due to no memory */ | |
60 | irc_send("%s SQ %s 0 :Out of memory - exiting.",mynumeric->content,myserver->content); | |
61 | irc_disconnected(); | |
62 | exit(0); | |
63 | } else { | |
64 | countpendingscan++; | |
65 | } | |
905c2ba2 | 66 | psp->IP=IP; |
67 | psp->type=scantype; | |
68 | psp->port=port; | |
69 | psp->class=class; | |
70 | psp->when=when; | |
71 | psp->next=NULL; | |
72 | ||
73 | if (!when) { | |
74 | /* normal queue */ | |
75 | normalqueuedscans++; | |
76 | if (ps_normalqueueend) { | |
77 | ps_normalqueueend->next=psp; | |
78 | ps_normalqueueend=psp; | |
79 | } else { | |
80 | ps_normalqueueend=ps_normalqueue=psp; | |
81 | } | |
82 | } else { | |
83 | prioqueuedscans++; | |
84 | if (!ps_prioqueue || ps_prioqueue->when > when) { | |
85 | psp->next=ps_prioqueue; | |
86 | ps_prioqueue=psp; | |
87 | } else { | |
88 | for (psp2=ps_prioqueue; ;psp2=psp2->next) { | |
89 | if (!psp2->next || psp2->next->when > when) { | |
90 | psp->next = psp2->next; | |
91 | psp2->next = psp; | |
92 | break; | |
93 | } | |
94 | } | |
95 | } | |
96 | } | |
97 | } | |
98 | ||
99 | void startqueuedscans() { | |
100 | pendingscan *psp=NULL; | |
101 | ||
761a4596 P |
102 | if (ps_start_ts+120 > time(NULL)) |
103 | return; | |
104 | ||
905c2ba2 | 105 | while (activescans < maxscans) { |
761a4596 | 106 | if (ps_prioqueue && (ps_prioqueue->when <= time(NULL))) { |
905c2ba2 | 107 | psp=ps_prioqueue; |
108 | ps_prioqueue=psp->next; | |
109 | prioqueuedscans--; | |
110 | } else if (ps_normalqueue) { | |
111 | psp=ps_normalqueue; | |
112 | ps_normalqueue=psp->next; | |
113 | if (!ps_normalqueue) | |
114 | ps_normalqueueend=NULL; | |
115 | normalqueuedscans--; | |
116 | } | |
117 | ||
118 | if (psp) { | |
119 | startscan(psp->IP, psp->type, psp->port, psp->class); | |
92f1d9e3 D |
120 | free(psp); |
121 | countpendingscan--; | |
905c2ba2 | 122 | psp=NULL; |
123 | } else { | |
124 | break; | |
125 | } | |
126 | } | |
127 | } | |
128 | ||
129 |