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From: Bruce Richardson <bruce.richardson@intel.com>
To: dev@dpdk.org
Cc: thomas@monjalon.net, david.marchand@redhat.com,
	Bruce Richardson <bruce.richardson@intel.com>
Subject: [dpdk-dev] [PATCH v2 2/4] eal: only load shared libs from driver plugin directory
Date: Mon, 22 Jun 2020 15:33:35 +0100
Message-ID: <20200622143337.562637-3-bruce.richardson@intel.com> (raw)
In-Reply-To: <20200622143337.562637-1-bruce.richardson@intel.com>

When we pass a "-d" flag to EAL pointing to a directory, we attempt to load
all files in that directory as driver plugins, irrespective of file type.
This procludes using e.g. the build/drivers directory, as a driver source
since it contains static libs and other files as well as the shared
objects.

By filtering out any files whose filename does not end in ".so", we can
improve usability by allowing other non-driver files to be present in the
driver directory.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
---
 lib/librte_eal/common/eal_common_options.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/librte_eal/common/eal_common_options.c b/lib/librte_eal/common/eal_common_options.c
index 551507af1..1a836d70f 100644
--- a/lib/librte_eal/common/eal_common_options.c
+++ b/lib/librte_eal/common/eal_common_options.c
@@ -352,9 +352,15 @@ eal_plugindir_init(const char *path)
 
 	while ((dent = readdir(d)) != NULL) {
 		struct stat sb;
+		int nlen = strnlen(dent->d_name, sizeof(dent->d_name));
+
+		/* check if name ends in .so */
+		if (strcmp(&dent->d_name[nlen - 3], ".so") != 0)
+			continue;
 
 		snprintf(sopath, sizeof(sopath), "%s/%s", path, dent->d_name);
 
+		/* if a regular file, add to list to load */
 		if (!(stat(sopath, &sb) == 0 && S_ISREG(sb.st_mode)))
 			continue;
 
-- 
2.25.1


  parent reply	other threads:[~2020-06-22 14:34 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-18 13:50 [dpdk-dev] [PATCH 0/4] improve runtime loading of shared drivers Bruce Richardson
2020-06-18 13:50 ` [dpdk-dev] [PATCH 1/4] eal: remove unnecessary null-termination Bruce Richardson
2020-06-18 13:50 ` [dpdk-dev] [PATCH 2/4] eal: only load shared libs from driver plugin directory Bruce Richardson
2020-06-18 13:50 ` [dpdk-dev] [PATCH 3/4] eal: don't load drivers from insecure paths Bruce Richardson
2020-06-18 13:50 ` [dpdk-dev] [PATCH 4/4] eal: cache last directory permissions checked Bruce Richardson
2020-06-22 14:33 ` [dpdk-dev] [PATCH v2 0/4] improve runtime loading of shared drivers Bruce Richardson
2020-06-22 14:33   ` [dpdk-dev] [PATCH v2 1/4] eal: remove unnecessary null-termination Bruce Richardson
2020-06-22 14:33   ` Bruce Richardson [this message]
2020-06-22 14:33   ` [dpdk-dev] [PATCH v2 3/4] eal: don't load drivers from insecure paths Bruce Richardson
2020-06-22 14:33   ` [dpdk-dev] [PATCH v2 4/4] eal: cache last directory permissions checked Bruce Richardson
2020-07-02 21:13   ` [dpdk-dev] [PATCH v2 0/4] improve runtime loading of shared drivers Thomas Monjalon
2020-07-03 10:25     ` Bruce Richardson
2020-07-02 21:16   ` Thomas Monjalon
2020-07-03  8:33     ` Bruce Richardson
2020-07-03 10:23 ` [dpdk-dev] [PATCH v3 " Bruce Richardson
2020-07-03 10:23   ` [dpdk-dev] [PATCH v3 1/4] eal: remove unnecessary null-termination in plugin path Bruce Richardson
2020-07-03 10:23   ` [dpdk-dev] [PATCH v3 2/4] eal: load only shared libs from driver plugin directories Bruce Richardson
2020-07-03 10:23   ` [dpdk-dev] [PATCH v3 3/4] eal: forbid loading drivers from insecure paths Bruce Richardson
2020-07-03 10:23   ` [dpdk-dev] [PATCH v3 4/4] eal: cache last directory permissions checked Bruce Richardson
2020-07-05 17:50   ` [dpdk-dev] [PATCH v3 0/4] improve runtime loading of shared drivers Thomas Monjalon

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