| Message ID | 20231108110637.3691441-9-masahisa.kojima@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | Add EFI HTTP boot support | expand |
Hi Masahisa, On Wed, 8 Nov 2023 at 04:08, Masahisa Kojima <masahisa.kojima@linaro.org> wrote: > > This adds the URI device path option for 'boot add' subcommand. > User can add the URI load option for downloading ISO image file > or EFI application through network. Currently HTTP is only supported. > > Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org> > Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> > --- > cmd/efidebug.c | 51 ++++++++++++++++++++++++++++++++++++ > include/net.h | 8 ++++++ > net/wget.c | 71 ++++++++++++++++++++++++++++++++++++++++++++++++++ > 3 files changed, 130 insertions(+) Reviewed-by: Simon Glass <sjg@chromium.org> > > diff --git a/cmd/efidebug.c b/cmd/efidebug.c > index 201531ac19..42b306e708 100644 > --- a/cmd/efidebug.c > +++ b/cmd/efidebug.c > @@ -19,6 +19,7 @@ > #include <log.h> > #include <malloc.h> > #include <mapmem.h> > +#include <net.h> > #include <part.h> > #include <search.h> > #include <linux/ctype.h> > @@ -829,6 +830,53 @@ static int do_efi_boot_add(struct cmd_tbl *cmdtp, int flag, > argc -= 1; > argv += 1; > break; > +#if (IS_ENABLED(CONFIG_EFI_HTTP_BOOT)) (my very late comment could be looked at after this is applied, since it is already at v11) Can this be move to 'if'? You can put it inside the case and really this code should be in a function, as do_efi_boot_add() is already long. > + case 'u': > + { > + char *pos; > + int uridp_len; > + struct efi_device_path_uri *uridp; > + > + if (argc < 3 || lo.label) { > + r = CMD_RET_USAGE; > + goto out; > + } > + > + id = (int)hextoul(argv[1], &endp); > + if (*endp != '\0' || id > 0xffff) > + return CMD_RET_USAGE; > + > + label = efi_convert_string(argv[2]); > + if (!label) > + return CMD_RET_FAILURE; > + > + if (!wget_validate_uri(argv[3])) { > + printf("ERROR: invalid URI\n"); > + r = CMD_RET_FAILURE; > + goto out; > + } > + > + efi_create_indexed_name(var_name16, sizeof(var_name16), > + "Boot", id); > + lo.label = label; > + > + uridp_len = sizeof(struct efi_device_path) + strlen(argv[3]) + 1; > + fp_size += uridp_len + sizeof(END); > + fp_free = efi_alloc(fp_size); > + uridp = (struct efi_device_path_uri *)fp_free; > + uridp->dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE; > + uridp->dp.sub_type = DEVICE_PATH_SUB_TYPE_MSG_URI; > + uridp->dp.length = uridp_len; > + strcpy(uridp->uri, argv[3]); > + pos = (char *)uridp + uridp_len; > + memcpy(pos, &END, sizeof(END)); > + file_path = (struct efi_device_path *)uridp; > + argc -= 3; > + argv += 3; > + break; > + } > +#endif > + > default: > r = CMD_RET_USAGE; > goto out; > @@ -1491,6 +1539,9 @@ U_BOOT_LONGHELP(efidebug, > " -b|-B <bootid> <label> <interface> <devnum>[:<part>] <file path>\n" > " -i|-I <interface> <devnum>[:<part>] <initrd file path>\n" > " (-b, -i for short form device path)\n" > +#if (IS_ENABLED(CONFIG_EFI_HTTP_BOOT)) > + " -u <bootid> <label> <uri>\n" > +#endif > " -s '<optional data>'\n" > "efidebug boot rm <bootid#1> [<bootid#2> [<bootid#3> [...]]]\n" > " - delete UEFI BootXXXX variables\n" > diff --git a/include/net.h b/include/net.h > index 57889d8b7a..c748974573 100644 > --- a/include/net.h > +++ b/include/net.h > @@ -935,4 +935,12 @@ static inline void eth_set_enable_bootdevs(bool enable) {} > */ > int wget_with_dns(ulong dst_addr, char *uri); > > +/** > + * wget_validate_uri() - varidate the uri > + * > + * @uri: uri string of target file of wget > + * Return: true if uri is valid, false if uri is invalid > + */ > +bool wget_validate_uri(char *uri); > + > #endif /* __NET_H__ */ > diff --git a/net/wget.c b/net/wget.c > index 2087146b37..6ae2237a0a 100644 > --- a/net/wget.c > +++ b/net/wget.c > @@ -566,3 +566,74 @@ out: > return ret; > } > #endif > + > +/** > + * wget_validate_uri() - validate the uri for wget > + * > + * @uri: uri string > + * > + * This function follows the current U-Boot wget implementation. > + * scheme: only "http:" is supported > + * authority: > + * - user information: not supported > + * - host: supported > + * - port: not supported(always use the default port) > + * > + * Uri is expected to be correctly percent encoded. > + * This is the minimum check, control codes(0x1-0x19, 0x7F, except '\0') > + * and space character(0x20) are not allowed. > + * > + * TODO: stricter uri conformance check > + * > + * Return: true on success, false on failure > + */ > +bool wget_validate_uri(char *uri) > +{ > + char c; > + bool ret = true; > + char *str_copy, *s, *authority; > + > + for (c = 0x1; c < 0x21; c++) { > + if (strchr(uri, c)) { > + log_err("invalid character is used\n"); > + return false; > + } > + } > + if (strchr(uri, 0x7f)) { > + log_err("invalid character is used\n"); > + return false; > + } > + > + if (strncmp(uri, "http://", 7)) { > + log_err("only http:// is supported\n"); > + return false; > + } > + str_copy = strdup(uri); > + if (!str_copy) > + return false; > + > + s = str_copy + strlen("http://"); > + authority = strsep(&s, "/"); > + if (!s) { > + log_err("invalid uri, no file path\n"); > + ret = false; > + goto out; > + } > + s = strchr(authority, '@'); > + if (s) { > + log_err("user information is not supported\n"); > + ret = false; > + goto out; > + } > + s = strchr(authority, ':'); > + if (s) { > + log_err("user defined port is not supported\n"); > + ret = false; > + goto out; > + } > + > +out: > + free(str_copy); > + > + return ret; > +} > -- > 2.34.1 > Regards, Simon
Hi Simon, On Thu, 9 Nov 2023 at 03:15, Simon Glass <sjg@chromium.org> wrote: > > Hi Masahisa, > > On Wed, 8 Nov 2023 at 04:08, Masahisa Kojima <masahisa.kojima@linaro.org> wrote: > > > > This adds the URI device path option for 'boot add' subcommand. > > User can add the URI load option for downloading ISO image file > > or EFI application through network. Currently HTTP is only supported. > > > > Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org> > > Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> > > --- > > cmd/efidebug.c | 51 ++++++++++++++++++++++++++++++++++++ > > include/net.h | 8 ++++++ > > net/wget.c | 71 ++++++++++++++++++++++++++++++++++++++++++++++++++ > > 3 files changed, 130 insertions(+) > > Reviewed-by: Simon Glass <sjg@chromium.org> > > > > > diff --git a/cmd/efidebug.c b/cmd/efidebug.c > > index 201531ac19..42b306e708 100644 > > --- a/cmd/efidebug.c > > +++ b/cmd/efidebug.c > > @@ -19,6 +19,7 @@ > > #include <log.h> > > #include <malloc.h> > > #include <mapmem.h> > > +#include <net.h> > > #include <part.h> > > #include <search.h> > > #include <linux/ctype.h> > > @@ -829,6 +830,53 @@ static int do_efi_boot_add(struct cmd_tbl *cmdtp, int flag, > > argc -= 1; > > argv += 1; > > break; > > +#if (IS_ENABLED(CONFIG_EFI_HTTP_BOOT)) > > (my very late comment could be looked at after this is applied, since > it is already at v11) > > Can this be move to 'if'? You can put it inside the case and really > this code should be in a function, as do_efi_boot_add() is already > long. I think it can. Kojima-san will send a v12 since there's a small issue in patch #7. I think he can fix that as well Thanks /Ilias > > > + case 'u': > > + { > > + char *pos; > > + int uridp_len; > > + struct efi_device_path_uri *uridp; > > + > > + if (argc < 3 || lo.label) { > > + r = CMD_RET_USAGE; > > + goto out; > > + } > > + > > + id = (int)hextoul(argv[1], &endp); > > + if (*endp != '\0' || id > 0xffff) > > + return CMD_RET_USAGE; > > + > > + label = efi_convert_string(argv[2]); > > + if (!label) > > + return CMD_RET_FAILURE; > > + > > + if (!wget_validate_uri(argv[3])) { > > + printf("ERROR: invalid URI\n"); > > + r = CMD_RET_FAILURE; > > + goto out; > > + } > > + > > + efi_create_indexed_name(var_name16, sizeof(var_name16), > > + "Boot", id); > > + lo.label = label; > > + > > + uridp_len = sizeof(struct efi_device_path) + strlen(argv[3]) + 1; > > + fp_size += uridp_len + sizeof(END); > > + fp_free = efi_alloc(fp_size); > > + uridp = (struct efi_device_path_uri *)fp_free; > > + uridp->dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE; > > + uridp->dp.sub_type = DEVICE_PATH_SUB_TYPE_MSG_URI; > > + uridp->dp.length = uridp_len; > > + strcpy(uridp->uri, argv[3]); > > + pos = (char *)uridp + uridp_len; > > + memcpy(pos, &END, sizeof(END)); > > + file_path = (struct efi_device_path *)uridp; > > + argc -= 3; > > + argv += 3; > > + break; > > + } > > +#endif > > + > > default: > > r = CMD_RET_USAGE; > > goto out; > > @@ -1491,6 +1539,9 @@ U_BOOT_LONGHELP(efidebug, > > " -b|-B <bootid> <label> <interface> <devnum>[:<part>] <file path>\n" > > " -i|-I <interface> <devnum>[:<part>] <initrd file path>\n" > > " (-b, -i for short form device path)\n" > > +#if (IS_ENABLED(CONFIG_EFI_HTTP_BOOT)) > > + " -u <bootid> <label> <uri>\n" > > +#endif > > " -s '<optional data>'\n" > > "efidebug boot rm <bootid#1> [<bootid#2> [<bootid#3> [...]]]\n" > > " - delete UEFI BootXXXX variables\n" > > diff --git a/include/net.h b/include/net.h > > index 57889d8b7a..c748974573 100644 > > --- a/include/net.h > > +++ b/include/net.h > > @@ -935,4 +935,12 @@ static inline void eth_set_enable_bootdevs(bool enable) {} > > */ > > int wget_with_dns(ulong dst_addr, char *uri); > > > > +/** > > + * wget_validate_uri() - varidate the uri > > + * > > + * @uri: uri string of target file of wget > > + * Return: true if uri is valid, false if uri is invalid > > + */ > > +bool wget_validate_uri(char *uri); > > + > > #endif /* __NET_H__ */ > > diff --git a/net/wget.c b/net/wget.c > > index 2087146b37..6ae2237a0a 100644 > > --- a/net/wget.c > > +++ b/net/wget.c > > @@ -566,3 +566,74 @@ out: > > return ret; > > } > > #endif > > + > > +/** > > + * wget_validate_uri() - validate the uri for wget > > + * > > + * @uri: uri string > > + * > > + * This function follows the current U-Boot wget implementation. > > + * scheme: only "http:" is supported > > + * authority: > > + * - user information: not supported > > + * - host: supported > > + * - port: not supported(always use the default port) > > + * > > + * Uri is expected to be correctly percent encoded. > > + * This is the minimum check, control codes(0x1-0x19, 0x7F, except '\0') > > + * and space character(0x20) are not allowed. > > + * > > + * TODO: stricter uri conformance check > > + * > > + * Return: true on success, false on failure > > + */ > > +bool wget_validate_uri(char *uri) > > +{ > > + char c; > > + bool ret = true; > > + char *str_copy, *s, *authority; > > + > > + for (c = 0x1; c < 0x21; c++) { > > + if (strchr(uri, c)) { > > + log_err("invalid character is used\n"); > > + return false; > > + } > > + } > > + if (strchr(uri, 0x7f)) { > > + log_err("invalid character is used\n"); > > + return false; > > + } > > + > > + if (strncmp(uri, "http://", 7)) { > > + log_err("only http:// is supported\n"); > > + return false; > > + } > > + str_copy = strdup(uri); > > + if (!str_copy) > > + return false; > > + > > + s = str_copy + strlen("http://"); > > + authority = strsep(&s, "/"); > > + if (!s) { > > + log_err("invalid uri, no file path\n"); > > + ret = false; > > + goto out; > > + } > > + s = strchr(authority, '@'); > > + if (s) { > > + log_err("user information is not supported\n"); > > + ret = false; > > + goto out; > > + } > > + s = strchr(authority, ':'); > > + if (s) { > > + log_err("user defined port is not supported\n"); > > + ret = false; > > + goto out; > > + } > > + > > +out: > > + free(str_copy); > > + > > + return ret; > > +} > > -- > > 2.34.1 > > > > Regards, > Simon
Hi Simon, Ilias, On Thu, 9 Nov 2023 at 17:00, Ilias Apalodimas <ilias.apalodimas@linaro.org> wrote: > > Hi Simon, > > On Thu, 9 Nov 2023 at 03:15, Simon Glass <sjg@chromium.org> wrote: > > > > Hi Masahisa, > > > > On Wed, 8 Nov 2023 at 04:08, Masahisa Kojima <masahisa.kojima@linaro.org> wrote: > > > > > > This adds the URI device path option for 'boot add' subcommand. > > > User can add the URI load option for downloading ISO image file > > > or EFI application through network. Currently HTTP is only supported. > > > > > > Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org> > > > Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> > > > --- > > > cmd/efidebug.c | 51 ++++++++++++++++++++++++++++++++++++ > > > include/net.h | 8 ++++++ > > > net/wget.c | 71 ++++++++++++++++++++++++++++++++++++++++++++++++++ > > > 3 files changed, 130 insertions(+) > > > > Reviewed-by: Simon Glass <sjg@chromium.org> > > > > > > > > diff --git a/cmd/efidebug.c b/cmd/efidebug.c > > > index 201531ac19..42b306e708 100644 > > > --- a/cmd/efidebug.c > > > +++ b/cmd/efidebug.c > > > @@ -19,6 +19,7 @@ > > > #include <log.h> > > > #include <malloc.h> > > > #include <mapmem.h> > > > +#include <net.h> > > > #include <part.h> > > > #include <search.h> > > > #include <linux/ctype.h> > > > @@ -829,6 +830,53 @@ static int do_efi_boot_add(struct cmd_tbl *cmdtp, int flag, > > > argc -= 1; > > > argv += 1; > > > break; > > > +#if (IS_ENABLED(CONFIG_EFI_HTTP_BOOT)) > > > > (my very late comment could be looked at after this is applied, since > > it is already at v11) > > > > Can this be move to 'if'? You can put it inside the case and really > > this code should be in a function, as do_efi_boot_add() is already > > long. > > I think it can. Kojima-san will send a v12 since there's a small > issue in patch #7. I think he can fix that as well Yes, I will fix this in next v12. Thanks, Masahisa Kojima > > Thanks > /Ilias > > > > > + case 'u': > > > + { > > > + char *pos; > > > + int uridp_len; > > > + struct efi_device_path_uri *uridp; > > > + > > > + if (argc < 3 || lo.label) { > > > + r = CMD_RET_USAGE; > > > + goto out; > > > + } > > > + > > > + id = (int)hextoul(argv[1], &endp); > > > + if (*endp != '\0' || id > 0xffff) > > > + return CMD_RET_USAGE; > > > + > > > + label = efi_convert_string(argv[2]); > > > + if (!label) > > > + return CMD_RET_FAILURE; > > > + > > > + if (!wget_validate_uri(argv[3])) { > > > + printf("ERROR: invalid URI\n"); > > > + r = CMD_RET_FAILURE; > > > + goto out; > > > + } > > > + > > > + efi_create_indexed_name(var_name16, sizeof(var_name16), > > > + "Boot", id); > > > + lo.label = label; > > > + > > > + uridp_len = sizeof(struct efi_device_path) + strlen(argv[3]) + 1; > > > + fp_size += uridp_len + sizeof(END); > > > + fp_free = efi_alloc(fp_size); > > > + uridp = (struct efi_device_path_uri *)fp_free; > > > + uridp->dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE; > > > + uridp->dp.sub_type = DEVICE_PATH_SUB_TYPE_MSG_URI; > > > + uridp->dp.length = uridp_len; > > > + strcpy(uridp->uri, argv[3]); > > > + pos = (char *)uridp + uridp_len; > > > + memcpy(pos, &END, sizeof(END)); > > > + file_path = (struct efi_device_path *)uridp; > > > + argc -= 3; > > > + argv += 3; > > > + break; > > > + } > > > +#endif > > > + > > > default: > > > r = CMD_RET_USAGE; > > > goto out; > > > @@ -1491,6 +1539,9 @@ U_BOOT_LONGHELP(efidebug, > > > " -b|-B <bootid> <label> <interface> <devnum>[:<part>] <file path>\n" > > > " -i|-I <interface> <devnum>[:<part>] <initrd file path>\n" > > > " (-b, -i for short form device path)\n" > > > +#if (IS_ENABLED(CONFIG_EFI_HTTP_BOOT)) > > > + " -u <bootid> <label> <uri>\n" > > > +#endif > > > " -s '<optional data>'\n" > > > "efidebug boot rm <bootid#1> [<bootid#2> [<bootid#3> [...]]]\n" > > > " - delete UEFI BootXXXX variables\n" > > > diff --git a/include/net.h b/include/net.h > > > index 57889d8b7a..c748974573 100644 > > > --- a/include/net.h > > > +++ b/include/net.h > > > @@ -935,4 +935,12 @@ static inline void eth_set_enable_bootdevs(bool enable) {} > > > */ > > > int wget_with_dns(ulong dst_addr, char *uri); > > > > > > +/** > > > + * wget_validate_uri() - varidate the uri > > > + * > > > + * @uri: uri string of target file of wget > > > + * Return: true if uri is valid, false if uri is invalid > > > + */ > > > +bool wget_validate_uri(char *uri); > > > + > > > #endif /* __NET_H__ */ > > > diff --git a/net/wget.c b/net/wget.c > > > index 2087146b37..6ae2237a0a 100644 > > > --- a/net/wget.c > > > +++ b/net/wget.c > > > @@ -566,3 +566,74 @@ out: > > > return ret; > > > } > > > #endif > > > + > > > +/** > > > + * wget_validate_uri() - validate the uri for wget > > > + * > > > + * @uri: uri string > > > + * > > > + * This function follows the current U-Boot wget implementation. > > > + * scheme: only "http:" is supported > > > + * authority: > > > + * - user information: not supported > > > + * - host: supported > > > + * - port: not supported(always use the default port) > > > + * > > > + * Uri is expected to be correctly percent encoded. > > > + * This is the minimum check, control codes(0x1-0x19, 0x7F, except '\0') > > > + * and space character(0x20) are not allowed. > > > + * > > > + * TODO: stricter uri conformance check > > > + * > > > + * Return: true on success, false on failure > > > + */ > > > +bool wget_validate_uri(char *uri) > > > +{ > > > + char c; > > > + bool ret = true; > > > + char *str_copy, *s, *authority; > > > + > > > + for (c = 0x1; c < 0x21; c++) { > > > + if (strchr(uri, c)) { > > > + log_err("invalid character is used\n"); > > > + return false; > > > + } > > > + } > > > + if (strchr(uri, 0x7f)) { > > > + log_err("invalid character is used\n"); > > > + return false; > > > + } > > > + > > > + if (strncmp(uri, "http://", 7)) { > > > + log_err("only http:// is supported\n"); > > > + return false; > > > + } > > > + str_copy = strdup(uri); > > > + if (!str_copy) > > > + return false; > > > + > > > + s = str_copy + strlen("http://"); > > > + authority = strsep(&s, "/"); > > > + if (!s) { > > > + log_err("invalid uri, no file path\n"); > > > + ret = false; > > > + goto out; > > > + } > > > + s = strchr(authority, '@'); > > > + if (s) { > > > + log_err("user information is not supported\n"); > > > + ret = false; > > > + goto out; > > > + } > > > + s = strchr(authority, ':'); > > > + if (s) { > > > + log_err("user defined port is not supported\n"); > > > + ret = false; > > > + goto out; > > > + } > > > + > > > +out: > > > + free(str_copy); > > > + > > > + return ret; > > > +} > > > -- > > > 2.34.1 > > > > > > > Regards, > > Simon
diff --git a/cmd/efidebug.c b/cmd/efidebug.c index 201531ac19..42b306e708 100644 --- a/cmd/efidebug.c +++ b/cmd/efidebug.c @@ -19,6 +19,7 @@ #include <log.h> #include <malloc.h> #include <mapmem.h> +#include <net.h> #include <part.h> #include <search.h> #include <linux/ctype.h> @@ -829,6 +830,53 @@ static int do_efi_boot_add(struct cmd_tbl *cmdtp, int flag, argc -= 1; argv += 1; break; +#if (IS_ENABLED(CONFIG_EFI_HTTP_BOOT)) + case 'u': + { + char *pos; + int uridp_len; + struct efi_device_path_uri *uridp; + + if (argc < 3 || lo.label) { + r = CMD_RET_USAGE; + goto out; + } + + id = (int)hextoul(argv[1], &endp); + if (*endp != '\0' || id > 0xffff) + return CMD_RET_USAGE; + + label = efi_convert_string(argv[2]); + if (!label) + return CMD_RET_FAILURE; + + if (!wget_validate_uri(argv[3])) { + printf("ERROR: invalid URI\n"); + r = CMD_RET_FAILURE; + goto out; + } + + efi_create_indexed_name(var_name16, sizeof(var_name16), + "Boot", id); + lo.label = label; + + uridp_len = sizeof(struct efi_device_path) + strlen(argv[3]) + 1; + fp_size += uridp_len + sizeof(END); + fp_free = efi_alloc(fp_size); + uridp = (struct efi_device_path_uri *)fp_free; + uridp->dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE; + uridp->dp.sub_type = DEVICE_PATH_SUB_TYPE_MSG_URI; + uridp->dp.length = uridp_len; + strcpy(uridp->uri, argv[3]); + pos = (char *)uridp + uridp_len; + memcpy(pos, &END, sizeof(END)); + file_path = (struct efi_device_path *)uridp; + argc -= 3; + argv += 3; + break; + } +#endif + default: r = CMD_RET_USAGE; goto out; @@ -1491,6 +1539,9 @@ U_BOOT_LONGHELP(efidebug, " -b|-B <bootid> <label> <interface> <devnum>[:<part>] <file path>\n" " -i|-I <interface> <devnum>[:<part>] <initrd file path>\n" " (-b, -i for short form device path)\n" +#if (IS_ENABLED(CONFIG_EFI_HTTP_BOOT)) + " -u <bootid> <label> <uri>\n" +#endif " -s '<optional data>'\n" "efidebug boot rm <bootid#1> [<bootid#2> [<bootid#3> [...]]]\n" " - delete UEFI BootXXXX variables\n" diff --git a/include/net.h b/include/net.h index 57889d8b7a..c748974573 100644 --- a/include/net.h +++ b/include/net.h @@ -935,4 +935,12 @@ static inline void eth_set_enable_bootdevs(bool enable) {} */ int wget_with_dns(ulong dst_addr, char *uri); +/** + * wget_validate_uri() - varidate the uri + * + * @uri: uri string of target file of wget + * Return: true if uri is valid, false if uri is invalid + */ +bool wget_validate_uri(char *uri); + #endif /* __NET_H__ */ diff --git a/net/wget.c b/net/wget.c index 2087146b37..6ae2237a0a 100644 --- a/net/wget.c +++ b/net/wget.c @@ -566,3 +566,74 @@ out: return ret; } #endif + +/** + * wget_validate_uri() - validate the uri for wget + * + * @uri: uri string + * + * This function follows the current U-Boot wget implementation. + * scheme: only "http:" is supported + * authority: + * - user information: not supported + * - host: supported + * - port: not supported(always use the default port) + * + * Uri is expected to be correctly percent encoded. + * This is the minimum check, control codes(0x1-0x19, 0x7F, except '\0') + * and space character(0x20) are not allowed. + * + * TODO: stricter uri conformance check + * + * Return: true on success, false on failure + */ +bool wget_validate_uri(char *uri) +{ + char c; + bool ret = true; + char *str_copy, *s, *authority; + + for (c = 0x1; c < 0x21; c++) { + if (strchr(uri, c)) { + log_err("invalid character is used\n"); + return false; + } + } + if (strchr(uri, 0x7f)) { + log_err("invalid character is used\n"); + return false; + } + + if (strncmp(uri, "http://", 7)) { + log_err("only http:// is supported\n"); + return false; + } + str_copy = strdup(uri); + if (!str_copy) + return false; + + s = str_copy + strlen("http://"); + authority = strsep(&s, "/"); + if (!s) { + log_err("invalid uri, no file path\n"); + ret = false; + goto out; + } + s = strchr(authority, '@'); + if (s) { + log_err("user information is not supported\n"); + ret = false; + goto out; + } + s = strchr(authority, ':'); + if (s) { + log_err("user defined port is not supported\n"); + ret = false; + goto out; + } + +out: + free(str_copy); + + return ret; +}