From: Ranjit Menon <ranjit.menon@intel.com>
To: Pallavi Kadam <pallavi.kadam@intel.com>,
dev@dpdk.org, thomas@monjalon.net
Cc: dmitry.kozliuk@gmail.com, Narcisa.Vasile@microsoft.com,
talshn@nvidia.com
Subject: Re: [dpdk-dev] [PATCH] eal: create a runtime directory on windows
Date: Thu, 22 Oct 2020 11:15:26 -0700 [thread overview]
Message-ID: <9bd6fb52-5df5-3a94-d372-abefec819f89@intel.com> (raw)
In-Reply-To: <20201021202616.2732-1-pallavi.kadam@intel.com>
On 10/21/2020 1:26 PM, Pallavi Kadam wrote:
> Added eal_create_runtime_dir() function in order to run any application
> as a user that does not have administrator access.
> Currently, since there is no runtime directory set, the code tries to
> create a file in C:\ which is only writable with administrator
> privileges. As a result, if the user is not admin, the application will
> fail.
>
> Signed-off-by: Ranjit Menon <ranjit.menon@intel.com>
> Signed-off-by: Pallavi Kadam <pallavi.kadam@intel.com>
> ---
> lib/librte_eal/windows/eal.c | 57 ++++++++++++++++++++++++++++++++++++
> 1 file changed, 57 insertions(+)
>
> diff --git a/lib/librte_eal/windows/eal.c b/lib/librte_eal/windows/eal.c
> index 6334aca03..b0f356405 100644
> --- a/lib/librte_eal/windows/eal.c
> +++ b/lib/librte_eal/windows/eal.c
> @@ -5,6 +5,7 @@
> #include <fcntl.h>
> #include <io.h>
> #include <share.h>
> +#include <direct.h>
> #include <sys/stat.h>
>
> #include <rte_debug.h>
> @@ -34,6 +35,55 @@ static int mem_cfg_fd = -1;
> /* internal configuration (per-core) */
> struct lcore_config lcore_config[RTE_MAX_LCORE];
>
> +int
> +eal_create_runtime_dir(void)
> +{
> + char temp_dir[PATH_MAX];
> + char runtime_dir[PATH_MAX];
> + int ret;
> +
> + /* get user-writable temp path */
> + if (GetTempPathA(sizeof(temp_dir), temp_dir) == 0) {
> + RTE_LOG_WIN32_ERR("GetTempPath");
> + return -1;
> + }
> +
> + /* create DPDK runtime subdirectory under temp dir */
> + ret = strcat_s(temp_dir, sizeof(temp_dir), "dpdk");
> + if (ret != 0) {
> + RTE_LOG(ERR, EAL, "Error creating DPDK runtime path name\n");
> + return -1;
> + }
> +
> + /* create prefix-specific subdirectory under DPDK runtime dir */
> + ret = snprintf(runtime_dir, sizeof(runtime_dir), "%s\\%s",
> + temp_dir, eal_get_hugefile_prefix());
> + if (ret < 0 || ret == sizeof(runtime_dir)) {
> + RTE_LOG(ERR, EAL, "Error creating prefix-specific runtime path\n");
> + return -1;
> + }
> +
> + /* create the path if it doesn't exist - step by step */
> + ret = _mkdir(temp_dir);
> + if (ret < 0 && errno != EEXIST) {
> + RTE_LOG(ERR, EAL, "Error creating '%s': %s\n",
> + temp_dir, strerror(errno));
> + return -1;
> + }
> +
> + ret = _mkdir(runtime_dir);
> + if (ret < 0 && errno != EEXIST) {
> + RTE_LOG(ERR, EAL, "Error creating '%s': %s\n",
> + runtime_dir, strerror(errno));
> + return -1;
> + }
> +
> + if (eal_set_runtime_dir(runtime_dir, sizeof(runtime_dir)))
> + return -1;
> +
> + return 0;
> +}
> +
> /* Detect if we are a primary or a secondary process */
> enum rte_proc_type_t
> eal_proc_type_detect(void)
> @@ -181,6 +231,13 @@ eal_parse_args(int argc, char **argv)
> }
> }
>
> + /* create runtime data directory */
> + if (internal_conf->no_shconf == 0 &&
> + eal_create_runtime_dir() < 0) {
> + RTE_LOG(ERR, EAL, "Cannot create runtime directory\n");
> + return -1;
> + }
> +
> if (eal_adjust_config(internal_conf) != 0)
> return -1;
>
Thomas, Dmitry: If at all possible, I think we should try and get this
fix into -rc2.
Without this fix, a non-admin user cannot run any application on Windows.
ranjit m.
next prev parent reply other threads:[~2020-10-22 18:15 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-21 20:26 Pallavi Kadam
2020-10-22 18:15 ` Ranjit Menon [this message]
2020-10-22 19:05 ` Dmitry Kozlyuk
2020-10-26 19:01 ` Kadam, Pallavi
2020-10-26 18:44 ` [dpdk-dev] [PATCH v2] eal: enable windows apps to run on non-admin users Pallavi Kadam
2020-10-27 23:10 ` Dmitry Kozlyuk
2020-10-28 12:41 ` Burakov, Anatoly
2020-11-03 20:28 ` Thomas Monjalon
2020-10-29 18:37 ` Narcisa Ana Maria Vasile
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