|
1 |
| -// DHCP Library v0.3 - April 25, 2009 |
2 |
| -// Author: Jordan Terrell - blog.jordanterrell.com |
3 |
| - |
4 |
| -#include <string.h> |
5 |
| -#include <stdlib.h> |
6 |
| -#include "Dhcp.h" |
7 |
| -#include "Arduino.h" |
8 |
| -#include "utility/stm32_eth.h" |
9 |
| - |
10 |
| -int DhcpClass::beginWithDHCP(uint8_t *mac, unsigned long timeout, unsigned long responseTimeout) |
11 |
| -{ |
12 |
| - UNUSED(responseTimeout); |
13 |
| - _timeout = timeout; |
14 |
| - _dhcp_lease_state = DHCP_CHECK_NONE; |
15 |
| - |
16 |
| - // zero out _dhcpMacAddr |
17 |
| - memset(_dhcpMacAddr, 0, 6); |
18 |
| - reset_DHCP_lease(); |
19 |
| - |
20 |
| - memcpy((void*)_dhcpMacAddr, (void*)mac, 6); |
21 |
| - _dhcp_state = STATE_DHCP_START; |
22 |
| - stm32_set_DHCP_state(_dhcp_state); |
23 |
| - return request_DHCP_lease(); |
24 |
| -} |
25 |
| - |
26 |
| -void DhcpClass::reset_DHCP_lease(){ |
27 |
| - _dhcp_state = STATE_DHCP_RELEASE; |
28 |
| - stm32_set_DHCP_state(_dhcp_state); |
29 |
| - stm32_eth_scheduler(); |
30 |
| - _dhcp_state = stm32_get_DHCP_state(); |
31 |
| -} |
32 |
| - |
33 |
| -//return:0 on error, 1 if request is sent and response is received |
34 |
| -int DhcpClass::request_DHCP_lease(){ |
35 |
| - |
36 |
| - int result = 0; |
37 |
| - unsigned long startTime = millis(); |
38 |
| - |
39 |
| - while(_dhcp_state != STATE_DHCP_LEASED) |
40 |
| - { |
41 |
| - stm32_eth_scheduler(); |
42 |
| - _dhcp_state = stm32_get_DHCP_state(); |
43 |
| - |
44 |
| - if(result != 1 && ((millis() - startTime) > _timeout)) { |
45 |
| - reset_DHCP_lease(); |
46 |
| - break; |
47 |
| - } |
48 |
| - } |
49 |
| - |
50 |
| - if(_dhcp_state == STATE_DHCP_LEASED) { |
51 |
| - result = 1; |
52 |
| - } |
53 |
| - |
54 |
| - return result; |
55 |
| -} |
56 |
| - |
57 |
| -/* |
58 |
| - returns: |
59 |
| - 0/DHCP_CHECK_NONE: nothing happened |
60 |
| - 1/DHCP_CHECK_RENEW_FAIL: renew failed |
61 |
| - 2/DHCP_CHECK_RENEW_OK: renew success |
62 |
| - 3/DHCP_CHECK_REBIND_FAIL: rebind fail |
63 |
| - 4/DHCP_CHECK_REBIND_OK: rebind success |
64 |
| -*/ |
65 |
| -int DhcpClass::checkLease(){ |
66 |
| - int rc = DHCP_CHECK_NONE; |
67 |
| - |
68 |
| - stm32_eth_scheduler(); |
69 |
| - rc = stm32_get_DHCP_lease_state(); |
70 |
| - |
71 |
| - if(rc != _dhcp_lease_state) |
72 |
| - { |
73 |
| - switch(_dhcp_lease_state) { |
74 |
| - case DHCP_CHECK_NONE: |
75 |
| - _dhcp_lease_state = rc; |
76 |
| - rc = DHCP_CHECK_NONE; |
77 |
| - break; |
78 |
| - |
79 |
| - case DHCP_CHECK_RENEW_OK: |
80 |
| - _dhcp_lease_state = rc; |
81 |
| - if(rc == DHCP_CHECK_NONE) { |
82 |
| - rc = DHCP_CHECK_RENEW_OK; |
83 |
| - } else { |
84 |
| - rc = DHCP_CHECK_RENEW_FAIL; |
85 |
| - } |
86 |
| - break; |
87 |
| - |
88 |
| - case DHCP_CHECK_REBIND_OK: |
89 |
| - _dhcp_lease_state = rc; |
90 |
| - if(rc == DHCP_CHECK_NONE) { |
91 |
| - rc = DHCP_CHECK_REBIND_OK; |
92 |
| - } else { |
93 |
| - rc = DHCP_CHECK_REBIND_FAIL; |
94 |
| - } |
95 |
| - break; |
96 |
| - |
97 |
| - default: |
98 |
| - _dhcp_lease_state = DHCP_CHECK_NONE; |
99 |
| - break; |
100 |
| - } |
101 |
| - } |
102 |
| - |
103 |
| - return rc; |
104 |
| -} |
105 |
| - |
106 |
| -IPAddress DhcpClass::getLocalIp() |
107 |
| -{ |
108 |
| - return IPAddress(stm32_eth_get_ipaddr()); |
109 |
| -} |
110 |
| - |
111 |
| -IPAddress DhcpClass::getSubnetMask() |
112 |
| -{ |
113 |
| - return IPAddress(stm32_eth_get_netmaskaddr()); |
114 |
| -} |
115 |
| - |
116 |
| -IPAddress DhcpClass::getGatewayIp() |
117 |
| -{ |
118 |
| - return IPAddress(stm32_eth_get_gwaddr()); |
119 |
| -} |
120 |
| - |
121 |
| -IPAddress DhcpClass::getDhcpServerIp() |
122 |
| -{ |
123 |
| - return IPAddress(stm32_eth_get_dhcpaddr()); |
124 |
| -} |
125 |
| - |
126 |
| -IPAddress DhcpClass::getDnsServerIp() |
127 |
| -{ |
128 |
| - return IPAddress(stm32_eth_get_dnsaddr()); |
129 |
| -} |
| 1 | +// DHCP Library v0.3 - April 25, 2009 |
| 2 | +// Author: Jordan Terrell - blog.jordanterrell.com |
| 3 | + |
| 4 | +#include <string.h> |
| 5 | +#include <stdlib.h> |
| 6 | +#include "Dhcp.h" |
| 7 | +#include "Arduino.h" |
| 8 | +#include "utility/stm32_eth.h" |
| 9 | + |
| 10 | +int DhcpClass::beginWithDHCP(uint8_t *mac, unsigned long timeout, unsigned long responseTimeout) |
| 11 | +{ |
| 12 | + UNUSED(responseTimeout); |
| 13 | + _timeout = timeout; |
| 14 | + _dhcp_lease_state = DHCP_CHECK_NONE; |
| 15 | + |
| 16 | + // zero out _dhcpMacAddr |
| 17 | + memset(_dhcpMacAddr, 0, 6); |
| 18 | + reset_DHCP_lease(); |
| 19 | + |
| 20 | + memcpy((void *)_dhcpMacAddr, (void *)mac, 6); |
| 21 | + _dhcp_state = STATE_DHCP_START; |
| 22 | + stm32_set_DHCP_state(_dhcp_state); |
| 23 | + return request_DHCP_lease(); |
| 24 | +} |
| 25 | + |
| 26 | +void DhcpClass::reset_DHCP_lease() |
| 27 | +{ |
| 28 | + _dhcp_state = STATE_DHCP_RELEASE; |
| 29 | + stm32_set_DHCP_state(_dhcp_state); |
| 30 | + stm32_eth_scheduler(); |
| 31 | + _dhcp_state = stm32_get_DHCP_state(); |
| 32 | +} |
| 33 | + |
| 34 | +//return:0 on error, 1 if request is sent and response is received |
| 35 | +int DhcpClass::request_DHCP_lease() |
| 36 | +{ |
| 37 | + |
| 38 | + int result = 0; |
| 39 | + unsigned long startTime = millis(); |
| 40 | + |
| 41 | + while (_dhcp_state != STATE_DHCP_LEASED) { |
| 42 | + stm32_eth_scheduler(); |
| 43 | + _dhcp_state = stm32_get_DHCP_state(); |
| 44 | + |
| 45 | + if (result != 1 && ((millis() - startTime) > _timeout)) { |
| 46 | + reset_DHCP_lease(); |
| 47 | + break; |
| 48 | + } |
| 49 | + } |
| 50 | + |
| 51 | + if (_dhcp_state == STATE_DHCP_LEASED) { |
| 52 | + result = 1; |
| 53 | + } |
| 54 | + |
| 55 | + return result; |
| 56 | +} |
| 57 | + |
| 58 | +/* |
| 59 | + returns: |
| 60 | + 0/DHCP_CHECK_NONE: nothing happened |
| 61 | + 1/DHCP_CHECK_RENEW_FAIL: renew failed |
| 62 | + 2/DHCP_CHECK_RENEW_OK: renew success |
| 63 | + 3/DHCP_CHECK_REBIND_FAIL: rebind fail |
| 64 | + 4/DHCP_CHECK_REBIND_OK: rebind success |
| 65 | +*/ |
| 66 | +int DhcpClass::checkLease() |
| 67 | +{ |
| 68 | + int rc = DHCP_CHECK_NONE; |
| 69 | + |
| 70 | + stm32_eth_scheduler(); |
| 71 | + rc = stm32_get_DHCP_lease_state(); |
| 72 | + |
| 73 | + if (rc != _dhcp_lease_state) { |
| 74 | + switch (_dhcp_lease_state) { |
| 75 | + case DHCP_CHECK_NONE: |
| 76 | + _dhcp_lease_state = rc; |
| 77 | + rc = DHCP_CHECK_NONE; |
| 78 | + break; |
| 79 | + |
| 80 | + case DHCP_CHECK_RENEW_OK: |
| 81 | + _dhcp_lease_state = rc; |
| 82 | + if (rc == DHCP_CHECK_NONE) { |
| 83 | + rc = DHCP_CHECK_RENEW_OK; |
| 84 | + } else { |
| 85 | + rc = DHCP_CHECK_RENEW_FAIL; |
| 86 | + } |
| 87 | + break; |
| 88 | + |
| 89 | + case DHCP_CHECK_REBIND_OK: |
| 90 | + _dhcp_lease_state = rc; |
| 91 | + if (rc == DHCP_CHECK_NONE) { |
| 92 | + rc = DHCP_CHECK_REBIND_OK; |
| 93 | + } else { |
| 94 | + rc = DHCP_CHECK_REBIND_FAIL; |
| 95 | + } |
| 96 | + break; |
| 97 | + |
| 98 | + default: |
| 99 | + _dhcp_lease_state = DHCP_CHECK_NONE; |
| 100 | + break; |
| 101 | + } |
| 102 | + } |
| 103 | + |
| 104 | + return rc; |
| 105 | +} |
| 106 | + |
| 107 | +IPAddress DhcpClass::getLocalIp() |
| 108 | +{ |
| 109 | + return IPAddress(stm32_eth_get_ipaddr()); |
| 110 | +} |
| 111 | + |
| 112 | +IPAddress DhcpClass::getSubnetMask() |
| 113 | +{ |
| 114 | + return IPAddress(stm32_eth_get_netmaskaddr()); |
| 115 | +} |
| 116 | + |
| 117 | +IPAddress DhcpClass::getGatewayIp() |
| 118 | +{ |
| 119 | + return IPAddress(stm32_eth_get_gwaddr()); |
| 120 | +} |
| 121 | + |
| 122 | +IPAddress DhcpClass::getDhcpServerIp() |
| 123 | +{ |
| 124 | + return IPAddress(stm32_eth_get_dhcpaddr()); |
| 125 | +} |
| 126 | + |
| 127 | +IPAddress DhcpClass::getDnsServerIp() |
| 128 | +{ |
| 129 | + return IPAddress(stm32_eth_get_dnsaddr()); |
| 130 | +} |
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