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([191.119.55.5]) by smtp.gmail.com with ESMTPSA id 586e51a60fabf-29651852a7asm2994621fac.3.2024.11.18.13.09.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 18 Nov 2024 13:09:23 -0800 (PST) From: Adriano Cordova To: u-boot@lists.denx.de Cc: joe.hershberger@ni.com, rfried.dev@gmail.com, jerome.forissier@linaro.org, xypron.glpk@gmx.de, ilias.apalodimas@linaro.org, Adriano Cordova Subject: [PATCH v4 03/14] efi_loader: device_path: add efi_dp_from_ipv4 Date: Mon, 18 Nov 2024 18:08:57 -0300 Message-ID: <20241118210908.51196-4-adrianox@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241118210908.51196-1-adrianox@gmail.com> References: <20241118210908.51196-1-adrianox@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean Add efi_dp_from_ipv4 to form a device path from an ipv4 address. Signed-off-by: Adriano Cordova --- Changes in v4: - Fixed memcpy mistake Changes in v3: - Removed some unnecessary void* casts. - Changed sizeof(struct efi_device_path_ipv4) to sizeof(*ipv4dp) in efi_dp_from_ipv4. lib/efi_loader/efi_device_path.c | 38 ++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/lib/efi_loader/efi_device_path.c b/lib/efi_loader/efi_device_path.c index ee387e1dfd..cdeea4791f 100644 --- a/lib/efi_loader/efi_device_path.c +++ b/lib/efi_loader/efi_device_path.c @@ -974,6 +974,44 @@ struct efi_device_path __maybe_unused *efi_dp_from_eth(void) return start; } +struct efi_device_path *efi_dp_from_ipv4(struct efi_ipv4_address *ip, + struct efi_ipv4_address *mask, + struct efi_ipv4_address *srv) +{ + struct efi_device_path *dp1, *dp2; + efi_uintn_t ipv4dp_len; + struct efi_device_path_ipv4 *ipv4dp; + char *pos; + + ipv4dp_len = sizeof(*ipv4dp); + ipv4dp = efi_alloc(ipv4dp_len + sizeof(END)); + if (!ipv4dp) { + log_err("Out of memory\n"); + return NULL; + } + + ipv4dp->dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE; + ipv4dp->dp.sub_type = DEVICE_PATH_SUB_TYPE_MSG_IPV4; + ipv4dp->dp.length = ipv4dp_len; + ipv4dp->protocol = 6; + if (ip) + memcpy(&ipv4dp->local_ip_address, ip, sizeof(*ip)); + if (mask) + memcpy(&ipv4dp->subnet_mask, mask, sizeof(*mask)); + if (srv) + memcpy(&ipv4dp->remote_ip_address, srv, sizeof(*srv)); + pos = (void *)(uintptr_t)ipv4dp + ipv4dp_len; + memcpy(pos, &END, sizeof(END)); + + dp1 = efi_dp_from_eth(); + dp2 = efi_dp_concat(dp1, (const struct efi_device_path *)ipv4dp, 0); + + efi_free_pool(ipv4dp); + efi_free_pool(dp1); + + return dp2; +} + /* Construct a device-path for memory-mapped image */ struct efi_device_path *efi_dp_from_mem(uint32_t memory_type, uint64_t start_address, -- 2.43.0