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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "ppapi/shared_impl/private/flash_net_address_impl.h" | 5 #include "ppapi/shared_impl/private/net_address_impl.h" |
| 6 | 6 |
| 7 #include <string.h> | 7 #include <string.h> |
| 8 | 8 |
| 9 #include <string> | 9 #include <string> |
| 10 | 10 |
| 11 #include "base/basictypes.h" | 11 #include "base/basictypes.h" |
| 12 #include "build/build_config.h" | 12 #include "build/build_config.h" |
| 13 #include "net/base/net_util.h" | 13 #include "net/base/net_util.h" |
| 14 #include "net/base/sys_addrinfo.h" | 14 #include "net/base/sys_addrinfo.h" |
| 15 #include "net/base/sys_byteorder.h" | 15 #include "net/base/sys_byteorder.h" |
| 16 #include "ppapi/c/pp_var.h" | 16 #include "ppapi/c/pp_var.h" |
| 17 #include "ppapi/c/private/ppb_flash_net_address.h" | 17 #include "ppapi/c/private/ppb_net_address.h" |
| 18 #include "ppapi/shared_impl/var.h" | 18 #include "ppapi/shared_impl/var.h" |
| 19 #include "ppapi/thunk/thunk.h" | 19 #include "ppapi/thunk/thunk.h" |
| 20 | 20 |
| 21 // The Flash net address interface doesn't have a normal C -> C++ thunk since it | 21 // The net address interface doesn't have a normal C -> C++ thunk since it |
| 22 // doesn't actually have any proxy wrapping or associated objects; it's just a | 22 // doesn't actually have any proxy wrapping or associated objects; it's just a |
| 23 // call into base. So we implement the entire interface here, using the thunk | 23 // call into base. So we implement the entire interface here, using the thunk |
| 24 // namespace so it magically gets hooked up in the proper places. | 24 // namespace so it magically gets hooked up in the proper places. |
| 25 | 25 |
| 26 namespace ppapi { | 26 namespace ppapi { |
| 27 | 27 |
| 28 namespace { | 28 namespace { |
| 29 | 29 |
| 30 #if defined(OS_WIN) | 30 #if defined(OS_WIN) |
| 31 // The type of |sockaddr::sa_family|. | 31 // The type of |sockaddr::sa_family|. |
| 32 typedef ADDRESS_FAMILY sa_family_t; | 32 typedef ADDRESS_FAMILY sa_family_t; |
| 33 #endif | 33 #endif |
| 34 | 34 |
| 35 inline sa_family_t GetFamily(const PP_Flash_NetAddress& addr) { | 35 inline sa_family_t GetFamily(const PP_NetAddress& addr) { |
| 36 return reinterpret_cast<const sockaddr*>(addr.data)->sa_family; | 36 return reinterpret_cast<const sockaddr*>(addr.data)->sa_family; |
| 37 } | 37 } |
| 38 | 38 |
| 39 PP_Bool AreHostsEqual(const PP_Flash_NetAddress* addr1, | 39 PP_Bool AreHostsEqual(const PP_NetAddress* addr1, |
| 40 const PP_Flash_NetAddress* addr2) { | 40 const PP_NetAddress* addr2) { |
| 41 if (!FlashNetAddressImpl::ValidateNetAddress(*addr1) || | 41 if (!NetAddressImpl::ValidateNetAddress(*addr1) || |
| 42 !FlashNetAddressImpl::ValidateNetAddress(*addr2)) | 42 !NetAddressImpl::ValidateNetAddress(*addr2)) |
| 43 return PP_FALSE; | 43 return PP_FALSE; |
| 44 | 44 |
| 45 if (GetFamily(*addr1) != GetFamily(*addr2)) | 45 if (GetFamily(*addr1) != GetFamily(*addr2)) |
| 46 return PP_FALSE; | 46 return PP_FALSE; |
| 47 | 47 |
| 48 if (GetFamily(*addr1) == AF_INET) { | 48 if (GetFamily(*addr1) == AF_INET) { |
| 49 const sockaddr_in* a1 = reinterpret_cast<const sockaddr_in*>(addr1->data); | 49 const sockaddr_in* a1 = reinterpret_cast<const sockaddr_in*>(addr1->data); |
| 50 const sockaddr_in* a2 = reinterpret_cast<const sockaddr_in*>(addr2->data); | 50 const sockaddr_in* a2 = reinterpret_cast<const sockaddr_in*>(addr2->data); |
| 51 return PP_FromBool(a1->sin_addr.s_addr == a2->sin_addr.s_addr); | 51 return PP_FromBool(a1->sin_addr.s_addr == a2->sin_addr.s_addr); |
| 52 } | 52 } |
| 53 | 53 |
| 54 if (GetFamily(*addr1) == AF_INET6) { | 54 if (GetFamily(*addr1) == AF_INET6) { |
| 55 const sockaddr_in6* a1 = reinterpret_cast<const sockaddr_in6*>(addr1->data); | 55 const sockaddr_in6* a1 = reinterpret_cast<const sockaddr_in6*>(addr1->data); |
| 56 const sockaddr_in6* a2 = reinterpret_cast<const sockaddr_in6*>(addr2->data); | 56 const sockaddr_in6* a2 = reinterpret_cast<const sockaddr_in6*>(addr2->data); |
| 57 return PP_FromBool(a1->sin6_flowinfo == a2->sin6_flowinfo && | 57 return PP_FromBool(a1->sin6_flowinfo == a2->sin6_flowinfo && |
| 58 memcmp(&a1->sin6_addr, &a2->sin6_addr, | 58 memcmp(&a1->sin6_addr, &a2->sin6_addr, |
| 59 sizeof(a1->sin6_addr)) == 0 && | 59 sizeof(a1->sin6_addr)) == 0 && |
| 60 a1->sin6_scope_id == a2->sin6_scope_id); | 60 a1->sin6_scope_id == a2->sin6_scope_id); |
| 61 } | 61 } |
| 62 | 62 |
| 63 return PP_FALSE; | 63 return PP_FALSE; |
| 64 } | 64 } |
| 65 | 65 |
| 66 PP_Bool AreEqual(const PP_Flash_NetAddress* addr1, | 66 PP_Bool AreEqual(const PP_NetAddress* addr1, |
| 67 const PP_Flash_NetAddress* addr2) { | 67 const PP_NetAddress* addr2) { |
| 68 // |AreHostsEqual()| will also validate the addresses and return false if | 68 // |AreHostsEqual()| will also validate the addresses and return false if |
| 69 // either is invalid. | 69 // either is invalid. |
| 70 if (!AreHostsEqual(addr1, addr2)) | 70 if (!AreHostsEqual(addr1, addr2)) |
| 71 return PP_FALSE; | 71 return PP_FALSE; |
| 72 | 72 |
| 73 // Note: Here, we know that |addr1| and |addr2| have the same family. | 73 // Note: Here, we know that |addr1| and |addr2| have the same family. |
| 74 if (GetFamily(*addr1) == AF_INET) { | 74 if (GetFamily(*addr1) == AF_INET) { |
| 75 const sockaddr_in* a1 = reinterpret_cast<const sockaddr_in*>(addr1->data); | 75 const sockaddr_in* a1 = reinterpret_cast<const sockaddr_in*>(addr1->data); |
| 76 const sockaddr_in* a2 = reinterpret_cast<const sockaddr_in*>(addr2->data); | 76 const sockaddr_in* a2 = reinterpret_cast<const sockaddr_in*>(addr2->data); |
| 77 return PP_FromBool(a1->sin_port == a2->sin_port); | 77 return PP_FromBool(a1->sin_port == a2->sin_port); |
| 78 } | 78 } |
| 79 | 79 |
| 80 if (GetFamily(*addr1) == AF_INET6) { | 80 if (GetFamily(*addr1) == AF_INET6) { |
| 81 const sockaddr_in6* a1 = reinterpret_cast<const sockaddr_in6*>(addr1->data); | 81 const sockaddr_in6* a1 = reinterpret_cast<const sockaddr_in6*>(addr1->data); |
| 82 const sockaddr_in6* a2 = reinterpret_cast<const sockaddr_in6*>(addr2->data); | 82 const sockaddr_in6* a2 = reinterpret_cast<const sockaddr_in6*>(addr2->data); |
| 83 return PP_FromBool(a1->sin6_port == a2->sin6_port); | 83 return PP_FromBool(a1->sin6_port == a2->sin6_port); |
| 84 } | 84 } |
| 85 | 85 |
| 86 return PP_FALSE; | 86 return PP_FALSE; |
| 87 } | 87 } |
| 88 | 88 |
| 89 PP_Var Describe(PP_Module module, | 89 PP_Var Describe(PP_Module module, |
| 90 const struct PP_Flash_NetAddress* addr, | 90 const struct PP_NetAddress* addr, |
| 91 PP_Bool include_port) { | 91 PP_Bool include_port) { |
| 92 if (!FlashNetAddressImpl::ValidateNetAddress(*addr)) | 92 if (!NetAddressImpl::ValidateNetAddress(*addr)) |
| 93 return PP_MakeUndefined(); | 93 return PP_MakeUndefined(); |
| 94 | 94 |
| 95 const sockaddr* a = reinterpret_cast<const sockaddr*>(addr->data); | 95 const sockaddr* a = reinterpret_cast<const sockaddr*>(addr->data); |
| 96 socklen_t l = addr->size; | 96 socklen_t l = addr->size; |
| 97 std::string description = | 97 std::string description = |
| 98 include_port ? net::NetAddressToStringWithPort(a, l) : | 98 include_port ? net::NetAddressToStringWithPort(a, l) : |
| 99 net::NetAddressToString(a, l); | 99 net::NetAddressToString(a, l); |
| 100 return StringVar::StringToPPVar(module, description); | 100 return StringVar::StringToPPVar(module, description); |
| 101 } | 101 } |
| 102 | 102 |
| 103 PP_Bool ReplacePort(const struct PP_Flash_NetAddress* src_addr, | 103 PP_Bool ReplacePort(const struct PP_NetAddress* src_addr, |
| 104 uint16_t port, | 104 uint16_t port, |
| 105 struct PP_Flash_NetAddress* dest_addr) { | 105 struct PP_NetAddress* dest_addr) { |
| 106 if (!FlashNetAddressImpl::ValidateNetAddress(*src_addr)) | 106 if (!NetAddressImpl::ValidateNetAddress(*src_addr)) |
| 107 return PP_FALSE; | 107 return PP_FALSE; |
| 108 | 108 |
| 109 if (GetFamily(*src_addr) == AF_INET) { | 109 if (GetFamily(*src_addr) == AF_INET) { |
| 110 memmove(dest_addr, src_addr, sizeof(*src_addr)); | 110 memmove(dest_addr, src_addr, sizeof(*src_addr)); |
| 111 reinterpret_cast<sockaddr_in*>(dest_addr->data)->sin_port = htons(port); | 111 reinterpret_cast<sockaddr_in*>(dest_addr->data)->sin_port = htons(port); |
| 112 return PP_TRUE; | 112 return PP_TRUE; |
| 113 } | 113 } |
| 114 | 114 |
| 115 if (GetFamily(*src_addr) == AF_INET6) { | 115 if (GetFamily(*src_addr) == AF_INET6) { |
| 116 memmove(dest_addr, src_addr, sizeof(*src_addr)); | 116 memmove(dest_addr, src_addr, sizeof(*src_addr)); |
| 117 reinterpret_cast<sockaddr_in6*>(dest_addr->data)->sin6_port = htons(port); | 117 reinterpret_cast<sockaddr_in6*>(dest_addr->data)->sin6_port = htons(port); |
| 118 return PP_TRUE; | 118 return PP_TRUE; |
| 119 } | 119 } |
| 120 | 120 |
| 121 return PP_FALSE; | 121 return PP_FALSE; |
| 122 } | 122 } |
| 123 | 123 |
| 124 void GetAnyAddress(PP_Bool is_ipv6, struct PP_Flash_NetAddress* addr) { | 124 void GetAnyAddress(PP_Bool is_ipv6, struct PP_NetAddress* addr) { |
| 125 memset(addr->data, 0, arraysize(addr->data) * sizeof(addr->data[0])); | 125 memset(addr->data, 0, arraysize(addr->data) * sizeof(addr->data[0])); |
| 126 if (is_ipv6) { | 126 if (is_ipv6) { |
| 127 sockaddr_in6* a = reinterpret_cast<sockaddr_in6*>(addr->data); | 127 sockaddr_in6* a = reinterpret_cast<sockaddr_in6*>(addr->data); |
| 128 addr->size = sizeof(*a); | 128 addr->size = sizeof(*a); |
| 129 a->sin6_family = AF_INET6; | 129 a->sin6_family = AF_INET6; |
| 130 a->sin6_addr = in6addr_any; | 130 a->sin6_addr = in6addr_any; |
| 131 } else { | 131 } else { |
| 132 sockaddr_in* a = reinterpret_cast<sockaddr_in*>(addr->data); | 132 sockaddr_in* a = reinterpret_cast<sockaddr_in*>(addr->data); |
| 133 addr->size = sizeof(*a); | 133 addr->size = sizeof(*a); |
| 134 a->sin_family = AF_INET; | 134 a->sin_family = AF_INET; |
| 135 a->sin_addr.s_addr = INADDR_ANY; | 135 a->sin_addr.s_addr = INADDR_ANY; |
| 136 } | 136 } |
| 137 } | 137 } |
| 138 | 138 |
| 139 const PPB_Flash_NetAddress flash_net_address_interface = { | 139 const PPB_NetAddress net_address_interface = { |
| 140 &AreEqual, | 140 &AreEqual, |
| 141 &AreHostsEqual, | 141 &AreHostsEqual, |
| 142 &Describe, | 142 &Describe, |
| 143 &ReplacePort, | 143 &ReplacePort, |
| 144 &GetAnyAddress | 144 &GetAnyAddress |
| 145 }; | 145 }; |
| 146 | 146 |
| 147 } // namespace | 147 } // namespace |
| 148 | 148 |
| 149 namespace thunk { | 149 namespace thunk { |
| 150 | 150 |
| 151 PPAPI_THUNK_EXPORT const PPB_NetAddress* GetPPB_NetAddress_Thunk() { |
| 152 return &net_address_interface; |
| 153 } |
| 154 |
| 155 // TODO(dpolukhin): remove when all references to Flash_NetAddress are gone. |
| 151 PPAPI_THUNK_EXPORT const PPB_Flash_NetAddress* GetPPB_Flash_NetAddress_Thunk() { | 156 PPAPI_THUNK_EXPORT const PPB_Flash_NetAddress* GetPPB_Flash_NetAddress_Thunk() { |
| 152 return &flash_net_address_interface; | 157 return reinterpret_cast<const PPB_Flash_NetAddress*>(&net_address_interface); |
| 153 } | 158 } |
| 154 | 159 |
| 155 } // namespace thunk | 160 } // namespace thunk |
| 156 | 161 |
| 157 // static | 162 // static |
| 158 bool FlashNetAddressImpl::ValidateNetAddress(const PP_Flash_NetAddress& addr) { | 163 bool NetAddressImpl::ValidateNetAddress(const PP_NetAddress& addr) { |
| 159 if (addr.size < sizeof(reinterpret_cast<sockaddr*>(0)->sa_family)) | 164 if (addr.size < sizeof(reinterpret_cast<sockaddr*>(0)->sa_family)) |
| 160 return false; | 165 return false; |
| 161 | 166 |
| 162 // TODO(viettrungluu): more careful validation? | 167 // TODO(viettrungluu): more careful validation? |
| 163 // Just do a size check for AF_INET. | 168 // Just do a size check for AF_INET. |
| 164 if (GetFamily(addr) == AF_INET && addr.size >= sizeof(sockaddr_in)) | 169 if (GetFamily(addr) == AF_INET && addr.size >= sizeof(sockaddr_in)) |
| 165 return true; | 170 return true; |
| 166 | 171 |
| 167 // Ditto for AF_INET6. | 172 // Ditto for AF_INET6. |
| 168 if (GetFamily(addr) == AF_INET6 && addr.size >= sizeof(sockaddr_in6)) | 173 if (GetFamily(addr) == AF_INET6 && addr.size >= sizeof(sockaddr_in6)) |
| 169 return true; | 174 return true; |
| 170 | 175 |
| 171 // Reject everything else. | 176 // Reject everything else. |
| 172 return false; | 177 return false; |
| 173 } | 178 } |
| 174 | 179 |
| 175 } // namespace ppapi | 180 } // namespace ppapi |
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