| /** |
| * Copyright (c) 2018 Linaro Limited. |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include "simplelink_log.h" |
| LOG_MODULE_DECLARE(LOG_MODULE_NAME); |
| |
| #include <stdlib.h> |
| #include <limits.h> |
| #include <fcntl.h> |
| |
| #include <zephyr.h> |
| /* Define sockaddr, etc, before simplelink.h */ |
| #include <net/socket_offload.h> |
| |
| #include <errno.h> |
| #include <ti/drivers/net/wifi/simplelink.h> |
| #include <ti/drivers/net/wifi/source/driver.h> |
| #include "simplelink_support.h" |
| |
| #include "tls_internal.h" |
| |
| #define FAILED (-1) |
| |
| /* Mutex for getaddrinfo() calls: */ |
| K_MUTEX_DEFINE(ga_mutex); |
| |
| /* |
| * Convert SL error codes into BSD errno values |
| * note that we are handling the same set of values as in TI SlNetSock |
| * minus the ones that are not defined in ti/drivers/net/wifi/errors.h. |
| */ |
| static int getErrno(_i32 error) |
| { |
| if (error >= 0) { |
| return error; |
| } |
| /* This switch case block is necessary for translating the NWP error |
| * code to BSD ones. The #ifdef in each case are made in order to |
| * reduce code footprint: These cases are compiled if and only if |
| * there's a discrepancy between the BSD error number and the error |
| * code returned by the NWP. |
| */ |
| switch (error) { |
| #if EBADF != SL_ERROR_BSD_EBADF |
| case SL_ERROR_BSD_EBADF: |
| error = EBADF; |
| break; |
| #endif |
| #if ENSOCK != SL_ERROR_BSD_ENSOCK |
| case SL_ERROR_BSD_ENSOCK: |
| /* The limit on total # of open sockets has been reached */ |
| error = ENSOCK; |
| break; |
| #endif |
| #if EAGAIN != SL_ERROR_BSD_EAGAIN |
| case SL_ERROR_BSD_EAGAIN: |
| error = EAGAIN; |
| break; |
| #endif |
| #if ENOMEM != SL_ERROR_BSD_ENOMEM |
| case SL_ERROR_BSD_ENOMEM: |
| error = ENOMEM; |
| break; |
| #endif |
| #if EACCES != SL_ERROR_BSD_EACCES |
| case SL_ERROR_BSD_EACCES: |
| error = EACCES; |
| break; |
| #endif |
| #if EFAULT != SL_ERROR_BSD_EFAULT |
| case SL_ERROR_BSD_EFAULT: |
| error = EFAULT; |
| break; |
| #endif |
| #if EINVAL != SL_ERROR_BSD_EINVAL |
| case SL_ERROR_BSD_EINVAL: |
| error = EINVAL; |
| break; |
| #endif |
| #if EDESTADDRREQ != SL_ERROR_BSD_EDESTADDRREQ |
| case SL_ERROR_BSD_EDESTADDRREQ: |
| error = EDESTADDRREQ; |
| break; |
| #endif |
| #if EPROTOTYPE != SL_ERROR_BSD_EPROTOTYPE |
| case SL_ERROR_BSD_EPROTOTYPE: |
| error = EPROTOTYPE; |
| break; |
| #endif |
| #if ENOPROTOOPT != SL_ERROR_BSD_ENOPROTOOPT |
| case SL_ERROR_BSD_ENOPROTOOPT: |
| error = ENOPROTOOPT; |
| break; |
| #endif |
| #if EPROTONOSUPPORT != SL_ERROR_BSD_EPROTONOSUPPORT |
| case SL_ERROR_BSD_EPROTONOSUPPORT: |
| error = EPROTONOSUPPORT; |
| break; |
| #endif |
| #if EOPNOTSUPP != SL_ERROR_BSD_EOPNOTSUPP |
| case SL_ERROR_BSD_EOPNOTSUPP: |
| error = EOPNOTSUPP; |
| break; |
| #endif |
| #if EAFNOSUPPORT != SL_ERROR_BSD_EAFNOSUPPORT |
| case SL_ERROR_BSD_EAFNOSUPPORT: |
| error = EAFNOSUPPORT; |
| break; |
| #endif |
| #if EADDRINUSE != SL_ERROR_BSD_EADDRINUSE |
| case SL_ERROR_BSD_EADDRINUSE: |
| error = EADDRINUSE; |
| break; |
| #endif |
| #if EADDRNOTAVAIL != SL_ERROR_BSD_EADDRNOTAVAIL |
| case SL_ERROR_BSD_EADDRNOTAVAIL: |
| error = EADDRNOTAVAIL; |
| break; |
| #endif |
| #if ENETUNREACH != SL_ERROR_BSD_ENETUNREACH |
| case SL_ERROR_BSD_ENETUNREACH: |
| error = ENETUNREACH; |
| break; |
| #endif |
| #if ENOBUFS != SL_ERROR_BSD_ENOBUFS |
| case SL_ERROR_BSD_ENOBUFS: |
| error = ENOBUFS; |
| break; |
| #endif |
| #if EISCONN != SL_ERROR_BSD_EISCONN |
| case SL_ERROR_BSD_EISCONN: |
| error = EISCONN; |
| break; |
| #endif |
| #if ENOTCONN != SL_ERROR_BSD_ENOTCONN |
| case SL_ERROR_BSD_ENOTCONN: |
| error = ENOTCONN; |
| break; |
| #endif |
| #if ETIMEDOUT != SL_ERROR_BSD_ETIMEDOUT |
| case SL_ERROR_BSD_ETIMEDOUT: |
| error = ETIMEDOUT; |
| break; |
| #endif |
| #if ECONNREFUSED != SL_ERROR_BSD_ECONNREFUSED |
| case SL_ERROR_BSD_ECONNREFUSED: |
| error = ECONNREFUSED; |
| break; |
| #endif |
| /* The cases below are proprietary driver errors, which can |
| * be returned by the SimpleLink Driver, in various cases of failure. |
| * Each is mapped to the corresponding BSD error. |
| */ |
| case SL_POOL_IS_EMPTY: |
| case SL_RET_CODE_NO_FREE_ASYNC_BUFFERS_ERROR: |
| case SL_RET_CODE_MALLOC_ERROR: |
| error = ENOMEM; |
| break; |
| case SL_RET_CODE_INVALID_INPUT: |
| case SL_EZEROLEN: |
| case SL_ESMALLBUF: |
| case SL_INVALPARAM: |
| error = EINVAL; |
| break; |
| default: |
| /* Do nothing .. |
| * If no case is true, that means that the BSD error |
| * code and the code returned by the NWP are either identical, |
| * or no proprietary error has occurred. |
| */ |
| break; |
| } |
| |
| return error; |
| } |
| |
| static int simplelink_socket(int family, int type, int proto) |
| { |
| uint8_t sec_method = SL_SO_SEC_METHOD_SSLv3_TLSV1_2; |
| int sd; |
| int retval = 0; |
| int sl_proto = proto; |
| |
| /* Map Zephyr socket.h family to SimpleLink's: */ |
| switch (family) { |
| case AF_INET: |
| family = SL_AF_INET; |
| break; |
| case AF_INET6: |
| family = SL_AF_INET6; |
| break; |
| default: |
| LOG_ERR("unsupported family: %d", family); |
| retval = slcb_SetErrno(EAFNOSUPPORT); |
| goto exit; |
| } |
| |
| /* Map Zephyr socket.h type to SimpleLink's: */ |
| switch (type) { |
| case SOCK_STREAM: |
| type = SL_SOCK_STREAM; |
| break; |
| case SOCK_DGRAM: |
| type = SL_SOCK_DGRAM; |
| break; |
| case SOCK_RAW: |
| type = SL_SOCK_RAW; |
| break; |
| default: |
| LOG_ERR("unrecognized type: %d", type); |
| retval = slcb_SetErrno(ESOCKTNOSUPPORT); |
| goto exit; |
| } |
| |
| /* Map Zephyr protocols to TI's values: */ |
| if (proto >= IPPROTO_TLS_1_0 && proto <= IPPROTO_TLS_1_2) { |
| sl_proto = SL_SEC_SOCKET; |
| } else if (proto >= IPPROTO_DTLS_1_0 && proto <= IPPROTO_DTLS_1_2) { |
| /* SimpleLink doesn't handle DTLS yet! */ |
| retval = slcb_SetErrno(EPROTONOSUPPORT); |
| goto exit; |
| } else { |
| switch (proto) { |
| case IPPROTO_TCP: |
| sl_proto = SL_IPPROTO_TCP; |
| break; |
| case IPPROTO_UDP: |
| sl_proto = SL_IPPROTO_UDP; |
| break; |
| default: |
| LOG_ERR("unrecognized proto: %d", sl_proto); |
| retval = slcb_SetErrno(EPROTONOSUPPORT); |
| goto exit; |
| } |
| } |
| |
| sd = sl_Socket(family, type, sl_proto); |
| if (sd >= 0) { |
| if (IS_ENABLED(CONFIG_NET_SOCKETS_SOCKOPT_TLS) |
| && sl_proto == SL_SEC_SOCKET) { |
| /* Now, set specific TLS version via setsockopt(): */ |
| sec_method = (proto - IPPROTO_TLS_1_0) + |
| SL_SO_SEC_METHOD_TLSV1; |
| retval = sl_SetSockOpt(sd, SL_SOL_SOCKET, |
| SL_SO_SECMETHOD, |
| &sec_method, sizeof(sec_method)); |
| if (retval < 0) { |
| retval = slcb_SetErrno(EPROTONOSUPPORT); |
| (void)sl_Close(sd); |
| goto exit; |
| } |
| } |
| } |
| |
| retval = sd; |
| |
| if (retval < 0) { |
| retval = slcb_SetErrno(getErrno(retval)); |
| } |
| |
| exit: |
| return retval; |
| } |
| |
| static int simplelink_close(int sd) |
| { |
| int retval; |
| |
| retval = sl_Close(sd); |
| |
| if (retval < 0) { |
| retval = slcb_SetErrno(getErrno(retval)); |
| } |
| |
| return retval; |
| } |
| |
| static SlSockAddr_t *translate_z_to_sl_addrlen(socklen_t addrlen, |
| SlSockAddrIn_t *sl_addr_in, |
| SlSockAddrIn6_t *sl_addr_in6, |
| SlSocklen_t *sl_addrlen) |
| { |
| SlSockAddr_t *sl_addr = NULL; |
| |
| if (addrlen == sizeof(struct sockaddr_in)) { |
| *sl_addrlen = sizeof(SlSockAddrIn_t); |
| sl_addr = (SlSockAddr_t *)sl_addr_in; |
| } else if (addrlen == sizeof(struct sockaddr_in6)) { |
| *sl_addrlen = sizeof(SlSockAddrIn6_t); |
| sl_addr = (SlSockAddr_t *)sl_addr_in6; |
| } |
| |
| return sl_addr; |
| } |
| |
| static SlSockAddr_t *translate_z_to_sl_addrs(const struct sockaddr *addr, |
| socklen_t addrlen, |
| SlSockAddrIn_t *sl_addr_in, |
| SlSockAddrIn6_t *sl_addr_in6, |
| SlSocklen_t *sl_addrlen) |
| { |
| SlSockAddr_t *sl_addr = NULL; |
| |
| if (addrlen == sizeof(struct sockaddr_in)) { |
| struct sockaddr_in *z_sockaddr_in = (struct sockaddr_in *)addr; |
| |
| *sl_addrlen = sizeof(SlSockAddrIn_t); |
| sl_addr_in->sin_family = SL_AF_INET; |
| sl_addr_in->sin_port = z_sockaddr_in->sin_port; |
| sl_addr_in->sin_addr.s_addr = |
| z_sockaddr_in->sin_addr.s_addr; |
| |
| sl_addr = (SlSockAddr_t *)sl_addr_in; |
| } else if (addrlen == sizeof(struct sockaddr_in6)) { |
| struct sockaddr_in6 *z_sockaddr_in6 = |
| (struct sockaddr_in6 *)addr; |
| |
| *sl_addrlen = sizeof(SlSockAddrIn6_t); |
| sl_addr_in6->sin6_family = SL_AF_INET6; |
| sl_addr_in6->sin6_port = z_sockaddr_in6->sin6_port; |
| memcpy(sl_addr_in6->sin6_addr._S6_un._S6_u32, |
| z_sockaddr_in6->sin6_addr.s6_addr, |
| sizeof(sl_addr_in6->sin6_addr._S6_un._S6_u32)); |
| |
| sl_addr = (SlSockAddr_t *)sl_addr_in6; |
| } |
| |
| return sl_addr; |
| } |
| |
| static void translate_sl_to_z_addr(SlSockAddr_t *sl_addr, |
| SlSocklen_t sl_addrlen, |
| struct sockaddr *addr, |
| socklen_t *addrlen) |
| { |
| SlSockAddrIn_t *sl_addr_in; |
| SlSockAddrIn6_t *sl_addr_in6; |
| |
| if (sl_addr->sa_family == SL_AF_INET) { |
| if (sl_addrlen == (SlSocklen_t)sizeof(SlSockAddrIn_t)) { |
| struct sockaddr_in *z_sockaddr_in = |
| (struct sockaddr_in *)addr; |
| |
| sl_addr_in = (SlSockAddrIn_t *)sl_addr; |
| z_sockaddr_in->sin_family = AF_INET; |
| z_sockaddr_in->sin_port = sl_addr_in->sin_port; |
| z_sockaddr_in->sin_addr.s_addr = |
| sl_addr_in->sin_addr.s_addr; |
| *addrlen = sizeof(struct sockaddr_in); |
| } else { |
| *addrlen = sl_addrlen; |
| } |
| } else if (sl_addr->sa_family == SL_AF_INET6) { |
| if (sl_addrlen == sizeof(SlSockAddrIn6_t)) { |
| struct sockaddr_in6 *z_sockaddr_in6 = |
| (struct sockaddr_in6 *)addr; |
| sl_addr_in6 = (SlSockAddrIn6_t *)sl_addr; |
| |
| z_sockaddr_in6->sin6_family = AF_INET6; |
| z_sockaddr_in6->sin6_port = sl_addr_in6->sin6_port; |
| z_sockaddr_in6->sin6_scope_id = |
| (u8_t)sl_addr_in6->sin6_scope_id; |
| memcpy(z_sockaddr_in6->sin6_addr.s6_addr, |
| sl_addr_in6->sin6_addr._S6_un._S6_u32, |
| sizeof(z_sockaddr_in6->sin6_addr.s6_addr)); |
| *addrlen = sizeof(struct sockaddr_in6); |
| } else { |
| *addrlen = sl_addrlen; |
| } |
| } |
| } |
| |
| static int simplelink_accept(int sd, struct sockaddr *addr, socklen_t *addrlen) |
| { |
| int retval; |
| SlSockAddr_t *sl_addr; |
| SlSockAddrIn_t sl_addr_in; |
| SlSockAddrIn6_t sl_addr_in6; |
| SlSocklen_t sl_addrlen; |
| |
| if ((addrlen == NULL) || (addr == NULL)) { |
| retval = SL_RET_CODE_INVALID_INPUT; |
| goto exit; |
| } |
| |
| /* Translate between Zephyr's and SimpleLink's sockaddr's: */ |
| sl_addr = translate_z_to_sl_addrlen(*addrlen, &sl_addr_in, &sl_addr_in6, |
| &sl_addrlen); |
| if (sl_addr == NULL) { |
| retval = SL_RET_CODE_INVALID_INPUT; |
| goto exit; |
| } |
| |
| retval = sl_Accept(sd, sl_addr, &sl_addrlen); |
| if (retval < 0) { |
| goto exit; |
| } |
| |
| /* Translate returned sl_addr into *addr and set *addrlen: */ |
| translate_sl_to_z_addr(sl_addr, sl_addrlen, addr, addrlen); |
| |
| exit: |
| if (retval < 0) { |
| retval = slcb_SetErrno(getErrno(retval)); |
| } |
| |
| return retval; |
| } |
| |
| static int simplelink_bind(int sd, const struct sockaddr *addr, |
| socklen_t addrlen) |
| { |
| int retval; |
| SlSockAddr_t *sl_addr; |
| SlSockAddrIn_t sl_addr_in; |
| SlSockAddrIn6_t sl_addr_in6; |
| SlSocklen_t sl_addrlen; |
| |
| if (addr == NULL) { |
| retval = slcb_SetErrno(EISDIR); |
| return retval; |
| } |
| |
| /* Translate to sl_Bind() parameters: */ |
| sl_addr = translate_z_to_sl_addrs(addr, addrlen, &sl_addr_in, |
| &sl_addr_in6, &sl_addrlen); |
| |
| if (sl_addr == NULL) { |
| retval = SL_RET_CODE_INVALID_INPUT; |
| goto exit; |
| } |
| |
| retval = sl_Bind(sd, sl_addr, sl_addrlen); |
| |
| exit: |
| if (retval < 0) { |
| retval = slcb_SetErrno(getErrno(retval)); |
| } |
| |
| return retval; |
| } |
| |
| static int simplelink_listen(int sd, int backlog) |
| { |
| int retval; |
| |
| retval = (int)sl_Listen(sd, backlog); |
| |
| if (retval < 0) { |
| retval = slcb_SetErrno(getErrno(retval)); |
| } |
| |
| return retval; |
| } |
| |
| static int simplelink_connect(int sd, const struct sockaddr *addr, |
| socklen_t addrlen) |
| { |
| int retval; |
| SlSockAddr_t *sl_addr; |
| SlSockAddrIn_t sl_addr_in; |
| SlSockAddrIn6_t sl_addr_in6; |
| SlSocklen_t sl_addrlen; |
| |
| __ASSERT_NO_MSG(addr); |
| |
| /* Translate to sl_Connect() parameters: */ |
| sl_addr = translate_z_to_sl_addrs(addr, addrlen, &sl_addr_in, |
| &sl_addr_in6, &sl_addrlen); |
| |
| if (sl_addr == NULL) { |
| retval = SL_RET_CODE_INVALID_INPUT; |
| goto exit; |
| } |
| |
| retval = sl_Connect(sd, sl_addr, sl_addrlen); |
| |
| /* TBD: Until we have a good way to get correct date from Zephyr, |
| * log a date validation error as a warning, but continue connection: |
| */ |
| if (retval == SL_ERROR_BSD_ESECDATEERROR) { |
| LOG_WRN("Failed certificate date validation: %d", retval); |
| retval = 0; |
| } |
| |
| /* Warn users when root CA is not in the certificate catalog. |
| * For enhanced security, users should update the catalog with the |
| * certificates for sites the device is expected to connect to. Note |
| * the connection is established successfully even when the root CA |
| * is not part of the catalog. |
| */ |
| if (retval == SL_ERROR_BSD_ESECUNKNOWNROOTCA) { |
| LOG_WRN("Unknown root CA used. For proper security, please " |
| "use a root CA that is part of the certificate " |
| "catalog in production systems."); |
| retval = 0; |
| } |
| |
| exit: |
| if (retval < 0) { |
| retval = slcb_SetErrno(getErrno(retval)); |
| } |
| |
| return retval; |
| } |
| |
| #define ONE_THOUSAND 1000 |
| |
| static int simplelink_poll(struct pollfd *fds, int nfds, int msecs) |
| { |
| int max_fd = 0; |
| struct SlTimeval_t tv, *ptv; |
| SlFdSet_t rfds; /* Set of read file descriptors */ |
| SlFdSet_t wfds; /* Set of write file descriptors */ |
| int i, retval, fd; |
| |
| if (nfds > SL_FD_SETSIZE) { |
| retval = slcb_SetErrno(EINVAL); |
| goto exit; |
| } |
| |
| /* Convert time to SlTimeval struct values: */ |
| if (msecs == K_FOREVER) { |
| ptv = NULL; |
| } else { |
| tv.tv_sec = msecs / ONE_THOUSAND; |
| tv.tv_usec = (msecs % ONE_THOUSAND) * ONE_THOUSAND; |
| ptv = &tv; |
| } |
| |
| /* Setup read and write fds for select, based on pollfd fields: */ |
| SL_SOCKET_FD_ZERO(&rfds); |
| SL_SOCKET_FD_ZERO(&wfds); |
| |
| for (i = 0; i < nfds; i++) { |
| fds[i].revents = 0; |
| fd = fds[i].fd; |
| if (fd < 0) { |
| continue; |
| } |
| if (fds[i].events & POLLIN) { |
| SL_SOCKET_FD_SET(fd, &rfds); |
| } |
| if (fds[i].events & POLLOUT) { |
| SL_SOCKET_FD_SET(fd, &wfds); |
| } |
| if (fds[i].fd > max_fd) { |
| max_fd = fds[i].fd; |
| } |
| } |
| |
| /* Wait for requested read and write fds to be ready: */ |
| retval = sl_Select(max_fd + 1, &rfds, &wfds, NULL, ptv); |
| if (retval > 0) { |
| for (i = 0; i < (max_fd + 1); i++) { |
| if (SL_SOCKET_FD_ISSET(fds[i].fd, &rfds)) { |
| fds[i].revents |= POLLIN; |
| } |
| if (SL_SOCKET_FD_ISSET(fds[i].fd, &wfds)) { |
| fds[i].revents |= POLLOUT; |
| } |
| } |
| } |
| |
| if (retval < 0) { |
| retval = slcb_SetErrno(getErrno(retval)); |
| } |
| |
| exit: |
| return retval; |
| } |
| |
| #ifdef CONFIG_NET_SOCKETS_SOCKOPT_TLS |
| |
| /* Iterate through the list of Zephyr's credential types, and |
| * map to SimpleLink values, then set stored filenames |
| * via SimpleLink's sl_SetSockOpt() |
| */ |
| static int map_credentials(int sd, const void *optval, socklen_t optlen) |
| { |
| sec_tag_t *sec_tags = (sec_tag_t *)optval; |
| int retval = 0; |
| int sec_tags_len; |
| sec_tag_t tag; |
| int opt; |
| int i; |
| struct tls_credential *cert; |
| |
| if ((optlen % sizeof(sec_tag_t)) != 0 || (optlen == 0)) { |
| retval = EINVAL; |
| goto exit; |
| } else { |
| sec_tags_len = optlen / sizeof(sec_tag_t); |
| } |
| |
| /* For each tag, retrieve the credentials value and type: */ |
| for (i = 0; i < sec_tags_len; i++) { |
| tag = sec_tags[i]; |
| cert = credential_next_get(tag, NULL); |
| while (cert != NULL) { |
| /* Map Zephyr cert types to Simplelink cert options: */ |
| switch (cert->type) { |
| case TLS_CREDENTIAL_CA_CERTIFICATE: |
| opt = SL_SO_SECURE_FILES_CA_FILE_NAME; |
| break; |
| case TLS_CREDENTIAL_SERVER_CERTIFICATE: |
| opt = SL_SO_SECURE_FILES_CERTIFICATE_FILE_NAME; |
| break; |
| case TLS_CREDENTIAL_PRIVATE_KEY: |
| opt = SL_SO_SECURE_FILES_PRIVATE_KEY_FILE_NAME; |
| break; |
| case TLS_CREDENTIAL_NONE: |
| case TLS_CREDENTIAL_PSK: |
| case TLS_CREDENTIAL_PSK_ID: |
| default: |
| /* Not handled by SimpleLink: */ |
| retval = EINVAL; |
| goto exit; |
| } |
| retval = sl_SetSockOpt(sd, SL_SOL_SOCKET, opt, |
| cert->buf, |
| (SlSocklen_t)cert->len); |
| if (retval < 0) { |
| retval = getErrno(retval); |
| break; |
| } |
| cert = credential_next_get(tag, cert); |
| } |
| } |
| |
| exit: |
| return retval; |
| } |
| #else |
| static int map_credentials(int sd, const void *optval, socklen_t optlen) |
| { |
| return 0; |
| } |
| #endif /* CONFIG_NET_SOCKETS_SOCKOPT_TLS */ |
| |
| /* Excerpted from SimpleLink's socket.h: |
| * "Unsupported: these are only placeholders to not break BSD code." |
| * Remove once Zephyr has POSIX socket options defined. |
| */ |
| #define SO_BROADCAST (200) |
| #define SO_SNDBUF (202) |
| |
| /* Needed to keep line lengths < 80: */ |
| #define _SEC_DOMAIN_VERIF SL_SO_SECURE_DOMAIN_NAME_VERIFICATION |
| |
| static int simplelink_setsockopt(int sd, int level, int optname, |
| const void *optval, socklen_t optlen) |
| { |
| int retval; |
| |
| if (IS_ENABLED(CONFIG_NET_SOCKETS_SOCKOPT_TLS) && level == SOL_TLS) { |
| /* Handle Zephyr's SOL_TLS secure socket options: */ |
| switch (optname) { |
| case TLS_SEC_TAG_LIST: |
| /* Bind credential filenames to this socket: */ |
| retval = map_credentials(sd, optval, optlen); |
| if (retval != 0) { |
| retval = slcb_SetErrno(retval); |
| goto exit; |
| } |
| break; |
| case TLS_HOSTNAME: |
| retval = sl_SetSockOpt(sd, SL_SOL_SOCKET, |
| _SEC_DOMAIN_VERIF, |
| (const char *)optval, optlen); |
| break; |
| case TLS_PEER_VERIFY: |
| if (optval) { |
| /* |
| * Not currently supported. Verification |
| * is automatically performed if a CA |
| * certificate is set. We are returning |
| * success here to allow |
| * mqtt_client_tls_connect() |
| * to proceed, given it requires |
| * verification and it is indeed |
| * performed when the cert is set. |
| */ |
| if (*(u32_t *)optval != 2U) { |
| retval = slcb_SetErrno(ENOTSUP); |
| goto exit; |
| } else { |
| retval = 0; |
| } |
| } else { |
| retval = slcb_SetErrno(EINVAL); |
| goto exit; |
| } |
| break; |
| case TLS_CIPHERSUITE_LIST: |
| case TLS_DTLS_ROLE: |
| /* Not yet supported: */ |
| retval = slcb_SetErrno(ENOTSUP); |
| goto exit; |
| default: |
| retval = slcb_SetErrno(EINVAL); |
| goto exit; |
| } |
| } else { |
| /* Can be SOL_SOCKET or TI specific: */ |
| |
| /* Note: this logic should match SimpleLink SDK's socket.c: */ |
| switch (optname) { |
| case TCP_NODELAY: |
| if (optval) { |
| /* if user wishes to have TCP_NODELAY = FALSE, |
| * we return EINVAL and fail in the cases below. |
| */ |
| if (*(u32_t *)optval) { |
| retval = 0; |
| goto exit; |
| } |
| } |
| /* These sock opts aren't supported by the cc32xx |
| * network stack, so we ignore them and set errno to |
| * EINVAL in order to not break "off-the-shelf" BSD |
| * code. |
| */ |
| case SO_BROADCAST: |
| case SO_REUSEADDR: |
| case SO_SNDBUF: |
| retval = slcb_SetErrno(EINVAL); |
| goto exit; |
| default: |
| break; |
| } |
| retval = sl_SetSockOpt(sd, SL_SOL_SOCKET, optname, optval, |
| (SlSocklen_t)optlen); |
| } |
| |
| if (retval < 0) { |
| retval = slcb_SetErrno(getErrno(retval)); |
| } |
| |
| exit: |
| return retval; |
| } |
| |
| static int simplelink_getsockopt(int sd, int level, int optname, |
| void *optval, socklen_t *optlen) |
| { |
| int retval; |
| |
| if (IS_ENABLED(CONFIG_NET_SOCKETS_SOCKOPT_TLS) && level == SOL_TLS) { |
| /* Handle Zephyr's SOL_TLS secure socket options: */ |
| switch (optname) { |
| case TLS_SEC_TAG_LIST: |
| case TLS_CIPHERSUITE_LIST: |
| case TLS_CIPHERSUITE_USED: |
| /* Not yet supported: */ |
| retval = slcb_SetErrno(ENOTSUP); |
| goto exit; |
| default: |
| retval = slcb_SetErrno(EINVAL); |
| goto exit; |
| } |
| } else { |
| /* Can be SOL_SOCKET or TI specific: */ |
| |
| /* Note: this logic should match SimpleLink SDK's socket.c: */ |
| switch (optname) { |
| /* TCP_NODELAY always set by the NWP, so return True */ |
| case TCP_NODELAY: |
| if (optval) { |
| (*(_u32 *)optval) = TRUE; |
| retval = 0; |
| goto exit; |
| } |
| /* These sock opts aren't supported by the cc32xx |
| * network stack, so we silently ignore them and set |
| * errno to EINVAL in order to not break "off-the-shelf" |
| * BSD code. |
| */ |
| case SO_BROADCAST: |
| case SO_REUSEADDR: |
| case SO_SNDBUF: |
| retval = slcb_SetErrno(EINVAL); |
| goto exit; |
| default: |
| break; |
| } |
| retval = sl_GetSockOpt(sd, SL_SOL_SOCKET, optname, optval, |
| (SlSocklen_t *)optlen); |
| } |
| |
| if (retval < 0) { |
| retval = slcb_SetErrno(getErrno(retval)); |
| } |
| |
| exit: |
| return retval; |
| } |
| |
| /* SimpleLink does not support flags in recv. |
| * However, to enable more Zephyr apps to use this socket_offload, rather than |
| * failing with ENOTSUP, we can closely emulate the MSG_DONTWAIT feature using |
| * SimpleLink socket options. |
| */ |
| static int handle_recv_flags(int sd, int flags, bool set, int *nb_enabled) |
| { |
| ssize_t retval = 0; |
| SlSocklen_t optlen = sizeof(SlSockNonblocking_t); |
| SlSockNonblocking_t enableOption; |
| |
| if (flags & MSG_PEEK) { |
| retval = ENOTSUP; |
| } else if (flags & MSG_DONTWAIT) { |
| if (set) { |
| /* Get previous state, to restore later: */ |
| sl_GetSockOpt(sd, SL_SOL_SOCKET, SL_SO_NONBLOCKING, |
| (_u8 *)&enableOption, &optlen); |
| *nb_enabled = enableOption.NonBlockingEnabled; |
| |
| /* Now, set to non_blocking if not already set: */ |
| if (!*nb_enabled) { |
| enableOption.NonBlockingEnabled = 1; |
| sl_SetSockOpt(sd, SL_SOL_SOCKET, |
| SL_SO_NONBLOCKING, |
| (_u8 *)&enableOption, |
| sizeof(enableOption)); |
| } |
| } else { |
| /* Restore socket to previous state: */ |
| enableOption.NonBlockingEnabled = *nb_enabled; |
| sl_SetSockOpt(sd, SL_SOL_SOCKET, SL_SO_NONBLOCKING, |
| (_u8 *)&enableOption, |
| sizeof(enableOption)); |
| } |
| } |
| |
| return retval; |
| } |
| |
| static ssize_t simplelink_recv(int sd, void *buf, size_t max_len, int flags) |
| { |
| ssize_t retval; |
| int nb_enabled; |
| |
| retval = handle_recv_flags(sd, flags, TRUE, &nb_enabled); |
| if (!retval) { |
| retval = (ssize_t)sl_Recv(sd, buf, max_len, 0); |
| handle_recv_flags(sd, flags, FALSE, &nb_enabled); |
| if (retval < 0) { |
| retval = slcb_SetErrno(getErrno(retval)); |
| } |
| } else { |
| retval = slcb_SetErrno(retval); |
| } |
| |
| return (ssize_t)(retval); |
| } |
| |
| static ssize_t simplelink_recvfrom(int sd, void *buf, short int len, |
| short int flags, struct sockaddr *from, |
| socklen_t *fromlen) |
| { |
| ssize_t retval; |
| SlSockAddr_t *sl_addr; |
| SlSockAddrIn_t sl_addr_in; |
| SlSockAddrIn6_t sl_addr_in6; |
| SlSocklen_t sl_addrlen; |
| int nb_enabled; |
| |
| __ASSERT_NO_MSG(fromlen); |
| |
| retval = handle_recv_flags(sd, flags, TRUE, &nb_enabled); |
| |
| if (!retval) { |
| /* Translate to sl_RecvFrom() parameters: */ |
| sl_addr = translate_z_to_sl_addrlen(*fromlen, &sl_addr_in, |
| &sl_addr_in6, |
| &sl_addrlen); |
| if (sl_addr == NULL) { |
| retval = SL_RET_CODE_INVALID_INPUT; |
| } else { |
| retval = (ssize_t)sl_RecvFrom(sd, buf, len, 0, sl_addr, |
| &sl_addrlen); |
| handle_recv_flags(sd, flags, FALSE, &nb_enabled); |
| } |
| |
| if (retval >= 0) { |
| /* Translate sl_addr into *addr and set *addrlen: */ |
| translate_sl_to_z_addr(sl_addr, sl_addrlen, from, |
| fromlen); |
| } else { |
| retval = slcb_SetErrno(getErrno(retval)); |
| } |
| } else { |
| retval = slcb_SetErrno(retval); |
| } |
| |
| return retval; |
| } |
| |
| static ssize_t simplelink_send(int sd, const void *buf, size_t len, |
| int flags) |
| { |
| ssize_t retval; |
| |
| retval = (ssize_t)sl_Send(sd, buf, len, flags); |
| |
| if (retval < 0) { |
| retval = slcb_SetErrno(getErrno(retval)); |
| } |
| |
| return retval; |
| } |
| |
| static ssize_t simplelink_sendto(int sd, const void *buf, size_t len, |
| int flags, const struct sockaddr *to, |
| socklen_t tolen) |
| { |
| ssize_t retval; |
| SlSockAddr_t *sl_addr; |
| SlSockAddrIn_t sl_addr_in; |
| SlSockAddrIn6_t sl_addr_in6; |
| SlSocklen_t sl_addrlen; |
| |
| /* Translate to sl_SendTo() parameters: */ |
| sl_addr = translate_z_to_sl_addrs(to, tolen, &sl_addr_in, |
| &sl_addr_in6, &sl_addrlen); |
| |
| if (sl_addr == NULL) { |
| retval = SL_RET_CODE_INVALID_INPUT; |
| goto exit; |
| } |
| |
| retval = sl_SendTo(sd, buf, (u16_t)len, flags, |
| sl_addr, sl_addrlen); |
| |
| exit: |
| if (retval < 0) { |
| retval = slcb_SetErrno(getErrno(retval)); |
| } |
| |
| return retval; |
| } |
| |
| /* |
| * Later SimpleLink SDK versions implement the full getaddrinfo semantics, |
| * returning potentially multiple IP addresses. |
| * This version implements a simple gethostbyname() API for client only. |
| */ |
| static int simplelink_getaddrinfo(const char *node, const char *service, |
| const struct addrinfo *hints, |
| struct addrinfo **res) |
| { |
| _u8 sl_family = SL_AF_INET; |
| unsigned long port = 0; |
| int socktype = SOCK_STREAM; |
| int proto = IPPROTO_TCP; |
| struct addrinfo *ai; |
| struct sockaddr *ai_addr; |
| _i16 retval; |
| _u32 ipaddr[4]; |
| |
| /* Check args: */ |
| if (!node) { |
| retval = EAI_NONAME; |
| goto exit; |
| } |
| if (service) { |
| port = strtol(service, NULL, 10); |
| if (port < 1 || port > USHRT_MAX) { |
| retval = EAI_SERVICE; |
| goto exit; |
| } |
| } |
| if (!res) { |
| retval = EAI_NONAME; |
| goto exit; |
| } |
| |
| /* See if any hints for family; otherwise, default to AF_INET. */ |
| if (hints) { |
| /* Note: SimpleLink SDK doesn't support AF_UNSPEC: */ |
| sl_family = (hints->ai_family == AF_INET6 ? |
| SL_AF_INET6 : SL_AF_INET); |
| } |
| |
| /* Now, try to resolve host name: */ |
| k_mutex_lock(&ga_mutex, K_FOREVER); |
| retval = sl_NetAppDnsGetHostByName((signed char *)node, strlen(node), |
| ipaddr, sl_family); |
| k_mutex_unlock(&ga_mutex); |
| |
| if (retval < 0) { |
| LOG_ERR("Could not resolve name: %s, retval: %d", |
| node, retval); |
| retval = EAI_NONAME; |
| goto exit; |
| } |
| |
| /* Allocate out res (addrinfo) struct. Just one. */ |
| *res = calloc(1, sizeof(struct addrinfo)); |
| ai = *res; |
| if (!ai) { |
| retval = EAI_MEMORY; |
| goto exit; |
| } else { |
| /* Now, alloc the embedded sockaddr struct: */ |
| ai_addr = calloc(1, sizeof(struct sockaddr)); |
| if (!ai_addr) { |
| retval = EAI_MEMORY; |
| free(*res); |
| goto exit; |
| } |
| } |
| |
| /* Now, fill in the fields of res (addrinfo struct): */ |
| ai->ai_family = (sl_family == SL_AF_INET6 ? AF_INET6 : AF_INET); |
| if (hints) { |
| socktype = hints->ai_socktype; |
| } |
| ai->ai_socktype = socktype; |
| |
| if (socktype == SOCK_DGRAM) { |
| proto = IPPROTO_UDP; |
| } |
| ai->ai_protocol = proto; |
| |
| /* Fill sockaddr struct fields based on family: */ |
| if (ai->ai_family == AF_INET) { |
| net_sin(ai_addr)->sin_family = ai->ai_family; |
| net_sin(ai_addr)->sin_addr.s_addr = htonl(ipaddr[0]); |
| net_sin(ai_addr)->sin_port = htons(port); |
| ai->ai_addrlen = sizeof(struct sockaddr_in); |
| } else { |
| net_sin6(ai_addr)->sin6_family = ai->ai_family; |
| net_sin6(ai_addr)->sin6_addr.s6_addr32[0] = htonl(ipaddr[0]); |
| net_sin6(ai_addr)->sin6_addr.s6_addr32[1] = htonl(ipaddr[1]); |
| net_sin6(ai_addr)->sin6_addr.s6_addr32[2] = htonl(ipaddr[2]); |
| net_sin6(ai_addr)->sin6_addr.s6_addr32[3] = htonl(ipaddr[3]); |
| net_sin6(ai_addr)->sin6_port = htons(port); |
| ai->ai_addrlen = sizeof(struct sockaddr_in6); |
| } |
| ai->ai_addr = ai_addr; |
| |
| exit: |
| return retval; |
| } |
| |
| static void simplelink_freeaddrinfo(struct addrinfo *res) |
| { |
| __ASSERT_NO_MSG(res); |
| |
| free(res->ai_addr); |
| free(res); |
| } |
| |
| static int simplelink_fcntl(int sd, int cmd, va_list args) |
| { |
| int retval = 0; |
| SlSockNonblocking_t enableOption; |
| SlSocklen_t optlen = sizeof(SlSockNonblocking_t); |
| |
| switch (cmd) { |
| case F_GETFL: |
| retval = sl_GetSockOpt(sd, SL_SOL_SOCKET, SL_SO_NONBLOCKING, |
| (_u8 *)&enableOption, &optlen); |
| if (retval == 0) { |
| if (enableOption.NonBlockingEnabled) { |
| retval |= O_NONBLOCK; |
| } |
| } |
| break; |
| case F_SETFL: |
| if ((va_arg(args, int) & O_NONBLOCK) != 0) { |
| enableOption.NonBlockingEnabled = 1; |
| } else { |
| enableOption.NonBlockingEnabled = 0; |
| } |
| retval = sl_SetSockOpt(sd, SL_SOL_SOCKET, SL_SO_NONBLOCKING, |
| &enableOption, optlen); |
| break; |
| default: |
| LOG_ERR("Invalid command: %d", cmd); |
| retval = slcb_SetErrno(EINVAL); |
| goto exit; |
| } |
| |
| if (retval < 0) { |
| retval = slcb_SetErrno(getErrno(retval)); |
| } |
| |
| exit: |
| return retval; |
| } |
| |
| void simplelink_sockets_init(void) |
| { |
| k_mutex_init(&ga_mutex); |
| } |
| |
| const struct socket_offload simplelink_ops = { |
| .socket = simplelink_socket, |
| .close = simplelink_close, |
| .accept = simplelink_accept, |
| .bind = simplelink_bind, |
| .listen = simplelink_listen, |
| .connect = simplelink_connect, |
| .poll = simplelink_poll, |
| .setsockopt = simplelink_setsockopt, |
| .getsockopt = simplelink_getsockopt, |
| .recv = simplelink_recv, |
| .recvfrom = simplelink_recvfrom, |
| .send = simplelink_send, |
| .sendto = simplelink_sendto, |
| .getaddrinfo = simplelink_getaddrinfo, |
| .freeaddrinfo = simplelink_freeaddrinfo, |
| .fcntl = simplelink_fcntl, |
| }; |