1 /*
2 * Copyright 2022-2023 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10 #include "internal/quic_cc.h"
11 #include "internal/quic_types.h"
12
13 typedef struct ossl_cc_dummy_st {
14 size_t max_dgram_len;
15 size_t *p_diag_max_dgram_len;
16 } OSSL_CC_DUMMY;
17
18 static void dummy_update_diag(OSSL_CC_DUMMY *d);
19
dummy_new(OSSL_TIME (* now_cb)(void * arg),void * now_cb_arg)20 static OSSL_CC_DATA *dummy_new(OSSL_TIME (*now_cb)(void *arg),
21 void *now_cb_arg)
22 {
23 OSSL_CC_DUMMY *d = OPENSSL_zalloc(sizeof(*d));
24
25 if (d == NULL)
26 return NULL;
27
28 d->max_dgram_len = QUIC_MIN_INITIAL_DGRAM_LEN;
29 return (OSSL_CC_DATA *)d;
30 }
31
dummy_free(OSSL_CC_DATA * cc)32 static void dummy_free(OSSL_CC_DATA *cc)
33 {
34 OPENSSL_free(cc);
35 }
36
dummy_reset(OSSL_CC_DATA * cc)37 static void dummy_reset(OSSL_CC_DATA *cc)
38 {
39
40 }
41
dummy_set_input_params(OSSL_CC_DATA * cc,const OSSL_PARAM * params)42 static int dummy_set_input_params(OSSL_CC_DATA *cc, const OSSL_PARAM *params)
43 {
44 OSSL_CC_DUMMY *d = (OSSL_CC_DUMMY *)cc;
45 const OSSL_PARAM *p;
46 size_t value;
47
48 p = OSSL_PARAM_locate_const(params, OSSL_CC_OPTION_MAX_DGRAM_PAYLOAD_LEN);
49 if (p != NULL) {
50 if (!OSSL_PARAM_get_size_t(p, &value))
51 return 0;
52 if (value < QUIC_MIN_INITIAL_DGRAM_LEN)
53 return 0;
54
55 d->max_dgram_len = value;
56 dummy_update_diag(d);
57 }
58
59 return 1;
60 }
61
dummy_bind_diagnostic(OSSL_CC_DATA * cc,OSSL_PARAM * params)62 static int dummy_bind_diagnostic(OSSL_CC_DATA *cc, OSSL_PARAM *params)
63 {
64 OSSL_CC_DUMMY *d = (OSSL_CC_DUMMY *)cc;
65 const OSSL_PARAM *p;
66
67 p = OSSL_PARAM_locate_const(params, OSSL_CC_OPTION_MAX_DGRAM_PAYLOAD_LEN);
68 if (p != NULL) {
69 if (p->data_type != OSSL_PARAM_UNSIGNED_INTEGER
70 || p->data_size != sizeof(size_t))
71 return 0;
72
73 d->p_diag_max_dgram_len = p->data;
74 }
75
76 dummy_update_diag(d);
77 return 1;
78 }
79
dummy_unbind_diagnostic(OSSL_CC_DATA * cc,OSSL_PARAM * params)80 static int dummy_unbind_diagnostic(OSSL_CC_DATA *cc, OSSL_PARAM *params)
81 {
82 OSSL_CC_DUMMY *d = (OSSL_CC_DUMMY *)cc;
83
84 if (OSSL_PARAM_locate_const(params, OSSL_CC_OPTION_MAX_DGRAM_PAYLOAD_LEN)
85 != NULL)
86 d->p_diag_max_dgram_len = NULL;
87
88 return 1;
89 }
90
dummy_update_diag(OSSL_CC_DUMMY * d)91 static void dummy_update_diag(OSSL_CC_DUMMY *d)
92 {
93 if (d->p_diag_max_dgram_len != NULL)
94 *d->p_diag_max_dgram_len = d->max_dgram_len;
95 }
96
dummy_get_tx_allowance(OSSL_CC_DATA * cc)97 static uint64_t dummy_get_tx_allowance(OSSL_CC_DATA *cc)
98 {
99 return SIZE_MAX;
100 }
101
dummy_get_wakeup_deadline(OSSL_CC_DATA * cc)102 static OSSL_TIME dummy_get_wakeup_deadline(OSSL_CC_DATA *cc)
103 {
104 return ossl_time_infinite();
105 }
106
dummy_on_data_sent(OSSL_CC_DATA * cc,uint64_t num_bytes)107 static int dummy_on_data_sent(OSSL_CC_DATA *cc,
108 uint64_t num_bytes)
109 {
110 return 1;
111 }
112
dummy_on_data_acked(OSSL_CC_DATA * cc,const OSSL_CC_ACK_INFO * info)113 static int dummy_on_data_acked(OSSL_CC_DATA *cc,
114 const OSSL_CC_ACK_INFO *info)
115 {
116 return 1;
117 }
118
dummy_on_data_lost(OSSL_CC_DATA * cc,const OSSL_CC_LOSS_INFO * info)119 static int dummy_on_data_lost(OSSL_CC_DATA *cc,
120 const OSSL_CC_LOSS_INFO *info)
121 {
122 return 1;
123 }
124
dummy_on_data_lost_finished(OSSL_CC_DATA * cc,uint32_t flags)125 static int dummy_on_data_lost_finished(OSSL_CC_DATA *cc,
126 uint32_t flags)
127 {
128 return 1;
129 }
130
dummy_on_data_invalidated(OSSL_CC_DATA * cc,uint64_t num_bytes)131 static int dummy_on_data_invalidated(OSSL_CC_DATA *cc,
132 uint64_t num_bytes)
133 {
134 return 1;
135 }
136
137 const OSSL_CC_METHOD ossl_cc_dummy_method = {
138 dummy_new,
139 dummy_free,
140 dummy_reset,
141 dummy_set_input_params,
142 dummy_bind_diagnostic,
143 dummy_unbind_diagnostic,
144 dummy_get_tx_allowance,
145 dummy_get_wakeup_deadline,
146 dummy_on_data_sent,
147 dummy_on_data_acked,
148 dummy_on_data_lost,
149 dummy_on_data_lost_finished,
150 dummy_on_data_invalidated,
151 };
152
